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Journal articles on the topic 'Bridged CO'

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Published: 4 June 2021

Last updated: 1 February 2022

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1

Zhang, Xiu-Mei, Peng Li, Wei Gao, Jie-Ping Liu, and En-Qing Gao. "A new cube-based dodecanuclear cobalt(ii) cluster with azide and tetrazolate ligands exhibiting ferromagnetic ordering." Dalton Transactions 44, no. 30 (2015): 13581–85. http://dx.doi.org/10.1039/c5dt02032h.

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A novel Co₁₂ cluster was composed of three identical Co₄ cubane units bridged by μ₆-CO₃²⁻ and tetrazolate bridges and exhibits long-range ferromagnetic ordering at about 9 K.

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2

Plešek, Jaromír, Farzaneh Hosseinpour Rajabi, Veena Vangani, and Jiří Fusek. "Constitution and Properties of the 8,8'-μ-(H2NO)=(1,2-C2B9H10)2-3-Co Bridged Cobaltaborane." Collection of Czechoslovak Chemical Communications 59, no. 6 (1994): 1326–36. http://dx.doi.org/10.1135/cccc19941326.

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Constitution of 8,8'-μ-H2N(-O-)(1,2-C2B9H10)2-3-Co sandwich has been elucidated 17 years after its first synthesis, via high resolution NMR methods supplemented by mass spectrometry. The species gives relevant "oximes" with acetone and benzaldehyde and is quantitatively methylated to the N,N'-dimethyl derivative, which shows an interesting redox disproportionation to a triatomically bridged sandwich with a 8,8'-μ-O-CH=N(Me)- bridge between both ligands. Several other "peculiar" reactions of this dimethyl derivative are discussed. On reductive cleavage of the parent hydroxylamine the non-bridged 8-HO-8-H3N(1,2-C3B3H10)2-3-Co zwitterion is obtained. Mono-, di- and trimethylated derivatives of this non-bridged species are characterized.

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3

Li, Zhong-Yi, Yuan-Qing Cao, Xiang-Ming Zhang, Ya-Lan Xu, Guang-Xiu Cao, Fu-Li Zhang, Su-Zhi Li, Fu-Qiang Zhang, and Bin Zhai. "Linking cobalt–water chains with cis-1,4-cyclohexanedicarboxylate bridges to form a 2D network exhibiting spin-canted antiferromagnetism." New Journal of Chemistry 41, no. 2 (2017): 457–61. http://dx.doi.org/10.1039/c6nj03278h.

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4

Franken, Andreas, Jaromír Plešek, Jiří Fusek, and Markus Semrau. "Cobaltacarboranes with Intramolecular Monophosphorus Bridges 8,8'-μ-Me2P(1,2-C2B9H10)2-3-Co, 6,6'-μ-Me2P(1,7-C2B9H10)2-2-Co and the Respective Non-Bridged Trimethylphosphine Derivatives (8-Me3P-1,2-C2B9H10)-3-Co-(1,2-C2B9H11) and (6-Me3P-1,7-C2B9H10)-2-Co-(1,7-C2B9H11)." Collection of Czechoslovak Chemical Communications 62, no. 7 (1997): 1070–79. http://dx.doi.org/10.1135/cccc19971070.

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The first two cobaltacarboranes with intramolecular phoshorus bridges and two related non-bridged trimethylphosphine-cobaltacarborane derivatives are described and characterized by mass spectrometry and multinuclear NMR; all four compounds are zwitterions: 8,8'-μ-Me2P(1,2-C2B9H10)2-3-Co (1a), 6,6'-μ-Me2P(1,7-C2B9H10)2-2-Co (2a), (8-Me3P-1,2-C2B9H10)-3-Co-(1,2-C2B9H11) (1b) and (6-Me3P-1,7-C2B9H10)-2-Co-(1,7-C2B9H11) (2b). X-Ray structures of the first two and of the last compound has been established.

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5

Tard, Cédric, Stacey Borg, Shirley Fairhurst, Christopher Pickett, and Stephen Best. "Electronic Communication between Dithiolato-Bridged Diiron Carbonyl and S-Bridged Redox-Active Centres." Inorganics 7, no. 3 (March 8, 2019): 37. http://dx.doi.org/10.3390/inorganics7030037.

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The catalytic potential of linked redox centres is exemplified by the catalytic site of [FeFe]-hydrogenases, which feature a diiron subsite linked by a cysteinyl S atom to a 4Fe4S cube. The investigation of systems possessing similarly-linked redox sites is important because it provides a context for understanding the biological system and the rational design of abiological catalysts. The structural, electrochemical and spectroscopic properties of Fe2(CO)5(CH3C(CH2S)2CH2SPhNO2, I-bzNO2 and the aniline analogue, I-bzNH2, are described and IR spectroelectrochemical studies have allowed investigation of the reduction products and their reactions with CO and protons. These measurements have allowed identification of the nitrobenzenyl radical anion, quantification of the shifts of the (CO) bands on ligand-based reduction compared with NO2/NH2 exchange and protonation of the pendent ligand. The strength of thioether coordination is related to the electronic effects, where competitive binding studies with CO show that CO/thioether exchange can be initiated by redox processes of the pendent ligand. Stoichiometric multi electron/proton transfer reactions of I-bzNO2 localised on nitrobenzene reductions occur at mild potentials and a metal-centred reduction in the presence of protons does not lead to significant electrocatalytic proton reduction.

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6

Macyk, Wojciech, Anna Herdegen, Grażyna Stochel, Zofia Stasicka, Silvana Sostero, and Orazio Traverso. "Equilibrium between CO-bridged and non-bridged forms of [(η5-C5H5]Ru(CO)2]2 and selective photoreactivity of the non-bridged form." Polyhedron 16, no. 19 (January 1997): 3339–44. http://dx.doi.org/10.1016/s0277-5387(97)00094-6.

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7

Burkovskaya, Nataliya P., Marina E. Nikiforova, Mikhail A. Kiskin, Anatoliy S. Lermontov, Artem S. Bogomyakov, Vladimir S. Mironov, Zhanna V. Dobrokhotova, et al. "New dodecanuclear phenylphosphonate-bridged Co(II) complexes." Polyhedron 30, no. 17 (November 2011): 2941–49. http://dx.doi.org/10.1016/j.poly.2011.08.039.

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8

Mathur, Pradeep, Md Munkir Hossain, and Arnold L. Rheingold. "Selenium-Bridged Clusters. Synthesis and Characterization of Selenium-Bridged Fe-Mo Clusters Cp2Mo2Fe2Se3(CO)6, Cp2Mo2Fe2Se2(CO)7, and Cp2Mo2FeSe(CO)7." Organometallics 13, no. 10 (October 1994): 3909–13. http://dx.doi.org/10.1021/om00022a029.

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9

Adams, Chris J., Michael I. Bruce, Brian W. Skelton, and Allan H. White. "Synthesis and Structure of Ru5(µ5-C2PPh2)(µ-dppm)(µ-PPh2)(CO)11·thf." Australian Journal of Chemistry 52, no. 5 (1999): 409. http://dx.doi.org/10.1071/ch98152.

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The reaction of the open pentanuclear cluster Ru5(µ5-C2PPh2)(µ-PPh2)(CO)13 (1) with dppm afforded the previously described complex Ru5(µ5-C2PPh2)(µ-PPh2)(CO)12(dppm) (2), with six Ru–Ru bonds and a chelating dppm ligand, together with Ru5(µ5-C2PPh2)(µ-dppm)(µ-PPh2)(CO)11 (3), whose structure is reported here (seven Ru–Ru bonds). The bidentate phosphine bridges an outer Ru–Ru vector, adjacent to that bridged by the PPh2 group.

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10

Adams, Harry, Sylvana C. Agustinho, Krystyna Chomka, Brian E. Mann, Stephen Smith, Clare Squires, and Sharon E. Spey. "The fluxionality and crystal structures of [Fe3(CO)10L2] (L2 = dppm, (Ph2P)2NH, {(EtO)2P}2O) and [Fe3(CO)9(dppm){P(OMe)3}]." Canadian Journal of Chemistry 79, no. 5-6 (May 1, 2001): 760–74. http://dx.doi.org/10.1139/v01-081.

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The crystal structures of [Fe3(CO)10L2] (L2 = dppm, (Ph2P)2NH, {(EtO)2P}2O) and [Fe3(CO)9(dppm){P(OMe)3}] (dppm = (Ph2P)2CH2) have been determined. [Fe3(CO)10L2] (L2 = dppm, (Ph2P)2NH, {(EtO)2P}2O) adopt a stereochemistry in the crystal with the bidentate ligand across an unbridged Fe-Fe edge, resulting in one phosphorus ligand being unusually in the axial position. In contrast, [Fe3(CO)9(dppm){P(OMe)3}] adopts a stereochemistry in the crystal with the bidentate ligand across the bridged Fe-Fe edge. The structures of the [Fe3(CO)10L2] (L2 = dppm, (Ph2P)2NH, {(EtO)2P}2O) support the Mann concerted bridge - opening bridge - closing mechanism of carbonyl fluxionality rather than the Johnson libration mechanism. The fluxionality of the compounds in the 13C NMR spectra is explained by a combination of the concerted bridge - opening bridge - closing, merry-go-round, and trigonal twist mechanisms, and ΔG values were determined.Key words: iron carbonyls, crystal structures, 13C NMR spectroscopy, fluxionality, mechanisms.

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11

Schenk, Wolfdieter A., and Christine Neuland-Labude. "M(IV)–M′(O)-Zweikernkomplexe (M = Ti, Zr, M′ = Cr, Mo, W) mit verbrückenden Phosphinocyclopentadienid-, Chlorid- und Thiolatliganden / M(IV)–M′(O) Dinuclear Complexes (M = Ti, Zr, M′ = Cr, Mo, W) with Bridging Phosphinocyclopentadienide, Chloride, and Thiolate Ligands." Zeitschrift für Naturforschung B 46, no. 5 (May 1, 1991): 573–80. http://dx.doi.org/10.1515/znb-1991-0503.

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A series of ligand-bridged dinuclear complexes [MM′Cl(µ-Cl)(µ-C5H4PR2)2(CO)3] (M = Ti, Zr, M′ = Cr, Mo, W, R = C6H5, 4-C6H4CH3) was synthesized from the mononuclear precursors MCl2(C5H4PR2)2 and M′(CO)3L3. Donor ligands L cleave the chloro bridge either reversibly (L = acetonitrile) or irreversibly (L = CO, P(OMe)3) with formation of the adducts [MM′Cl2(μ-C5H4PR2)2(CO)3L]. At titanium a terminal Cl- ligand can be replaced by tBuO- whereas MeS- substitutes both terminal and bridging Cl-. The dinuclear complexes [MM′(SMe)(µ-SMe)(µ-C5H4PR2)2(CO)3] thus formed are inert towards CO or P(OMe)3.

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12

Heyke, O., G. Beuter, and I. P. Lorenz. "Darstellung, Reaktivität und Kristallstruktur von [(CO)3Mn(dppm)2(μ-S)Rh(CO)] / Synthesis, Reactivity and Crystal Structure of [(CO)3Mn(dppm)2(μ-S)Rh(CO)]." Zeitschrift für Naturforschung B 47, no. 5 (May 1, 1992): 668–74. http://dx.doi.org/10.1515/znb-1992-0510.

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The reaction of [(CO)3Mn(dppm)2Rh(CO)] (1) with H2S in dichloromethane yields [(CO)3Mn(dppm)2(μ-S)Rh(CO)] (2), which is characterized by IR, 31P{1H}, 1H, 13C{1H} nmr and mass spectra. The crystal structure of 2 was determined by X-ray diffraction: space group P21/n, Z = 4, a = 1232.6(3), b = 2558.8(4), c = 1640.8(2) pm, β = 97.74(2)°, R/Rw = 0.048/0.057. The dimeric complex shows A-frame structure possessing a bridging sulfur and a semibridging CO group. 2 cannot be oxidized to the corresponding SO2 bridged complex [(CO)3Mn(dppm)2(μ-SO2)Rh(CO)] (3). The reaction of 2 with SO2, however, yields the SO2 bridged complex [(CO)2Mn(dppm)2(μ-S)(μ-SO2)Rh(CO)] (5); in dichloromethane 2 is readily chlorinated to afford the salt [(CO)3Mn(dppm),(μ-S)RhCl]Cl (4).

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13

Tsui, Jordan A., Timothy M. Bolton, and Brian T. Sterenberg. "Tungsten coordination chemistry of 1,4-bisdiphenylphosphinobutadiyne — Synthesis of coordination macrocycles and factors controlling diyne cycloaddition." Canadian Journal of Chemistry 87, no. 1 (January 1, 2009): 197–204. http://dx.doi.org/10.1139/v08-123.

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The 1:1 reaction of [W(CO)4(2-picoline)2] (1) with Ph2PCtriple bondC-Ctriple bondCPPh2 (2) led to {[cis-W(CO)4]2(µ-Ph2PC4PPh2)2} (3), in which two bis(diphenylphosphino)butadiyne ligands bridge two tetracarbonyltungsten centres. Reaction of 1 with excess 2 led to [cis-W(CO)4(Ph2PC4PPh2-κ1-P)2] (4), in which two dangling bis-phosphines are coordinated to one metal centre, and reaction of 2 with two equivalents of 1 led to {[W(2-picoline)(CO)4]2(µ-Ph2PC4PPh2)} (5), in which one ligand bridges two tungsten centres. Combination of 4 and 5 led to the trimeric complex {[cis-W(CO)4]3(µ-Ph2PC4PPh2)3} (6), in which three tetracarbonyltungsten centres are bridged by three bisdiphenylphosphinobutadiyne ligands. The dimeric complex 3 showed no reactivity towards alkyne cycloaddition; however, the trimeric complex 6 undergoes cycloaddition at moderate temperatures to form {[W(CO)4]3[µ3-C12(Ph2P)6]} (8), which contains a cyclododecatrienetriyene ring. Comparison of structural data for the template complexes 3 and 6, as well that of previously described platinum template complexes, suggests that alkyne cycloaddition reactions are favoured by proximity of the alkynyl carbons α to phosphorus in adjacent ligands.Key words: coordination chemistry, diyne, cycloaddition, templated reaction, tungsten.

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14

Herberhold, Max, Wolfgang Milius, and Jinnan Liu. "Die (1-Cyclohepta-2,4,6-trienyl)thiolato-verbrüuckten Zweikernkomplexe – Mn2(CO)8(μ2-SC7H7)2 und Mn2(CO)6(C≡NtBu)2(μ2-SC7H7)2 / The (1-Cyclohepta-2,4,6-trienyl)thiolato-Bridged Dinuclear Complexes Mn2(CO)8(μ2-SC7H7)2 and Mn2(CO)6(C≡NtBu)2(μ2-SC7H7)2." Zeitschrift für Naturforschung B 59, no. 6 (June 1, 2004): 673–80. http://dx.doi.org/10.1515/znb-2004-0607.

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The reactions of either Mn2(CO)10 (under irradiation) or Mn(CO)5X (X = Cl, Br) with di(1-cyclohepta-2,4,6-trienyl) sulfide, S(C7H7)2 (1), led to the organothiolato-bridged dimer [Mn(CO)4(μ2-SC7H7)]2 (2) in addition to ditropyl, (C7H7)2. Subsequent substitution of two carbonyl ligands in 2 for tert-butyl isocyanide gave [Mn(CO)3(C≡NtBu)(μ2-SC7H7)]2 (3). The molecular structures of the centrosymmetric dimers 2 and 3 have been determined by X-Ray crystallography. Both 2 and 3 contain a planar Mn2S2 core with the 1-cyclohepta-2,4,6-trienyl substituents in anti-position. The structural parameters of dinuclear carbonylmanganese complexes containing organothiolato or thioether bridges are discussed.

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15

Alvarez, M. Angeles, M. Esther García, Daniel García-Vivó, M. Teresa Rueda, Miguel A. Ruiz, Adrián Toyos, and M. Fernanda Vega. "Terminal vs. bridging coordination of CO and NO ligands after decarbonylation of [W2Cp2(μ-PR2)(CO)3(NO)] complexes (R = Ph, Cy). An experimental and computational study." Dalton Transactions 46, no. 31 (2017): 10440–51. http://dx.doi.org/10.1039/c7dt02243c.

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Photolysis of the title complexes yields κ¹:η²-CO-bridged derivatives, and not their unsaturated κ¹:κ¹-NO-bridged isomers, despite their similar thermodynamic stability.

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16

Choudhury, Anup, Céline Pichon, Jean-Pascal Sutter, Dobbidi Pamu, Bipul Sarma, Prashurya Pritam Mudoi, and Nayanmoni Gogoi. "Accessing water processable cyanido bridged chiral heterobimetallic Co(ii)–Fe(iii) one dimensional network." Chemical Communications 57, no. 2 (2021): 207–10. http://dx.doi.org/10.1039/d0cc05356b.

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A simple approach to impart water processability in cyanido bridged extended structures are described. A chiral cyanido bridged Co(ii)–Fe(iii) extended structure is assembled and its water processability is demonstrated.

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17

Zhu, Xiaoquan, Shaodong Su, Wenhai Cao, Shengmin Hu, Yuehong Wen, Xintao Wu, and Tianlu Sheng. "Effects of Ru(ii/iii) redox on the Co(ii) coordination number and magnetic properties of 1D cyanide-bridged Co–Ru compounds." Dalton Transactions 46, no. 4 (2017): 1038–41. http://dx.doi.org/10.1039/c6dt04397f.

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18

Tong, Ming-Liang, Ji-Wen Cai, Xiao-Lan Yu, Xiao-Ming Chen, Seik Weng Ng, and Thomas C. W. Mak. "Linear Metal(II)-4,4′-Bipyridine (4,4′-bpy) Chains Organized into Two-Dimensional Rhombic Networks by Hydrogen Bonding. Crystal Structures of [Co(4,4′-bpy)(H2O)4] (ClO4)2.(4,4′-bpy)2.2H2O and [Zn(4,4′-bpy)(H2O)3(ClO4)] (ClO4).(4,4′-bpy)1·5.H20." Australian Journal of Chemistry 51, no. 7 (1998): 637. http://dx.doi.org/10.1071/c97207.

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Two substances with extended two-dimensional networks through hydrogen-bond cross linkages, namely, [Co(4,4′-bpy)(H2O4] (ClO4)2.(4,4′-bpy)2.2H2O and [Zn(4,4′-bpy)(H2O)3(ClO4)] (ClO4).(4,4′- bpy)1·5.H2O, were synthesized, in EtOH/H2O solution. The cobalt complex crystallizes in the triclinic space group P-1 with a 9·113(2), b 11· 093(2), c 11·394(2) Å, α 64·04(3), β 70·18(3), γ 66·91(3)°, V 932·9(3) Å3. The crystal structure contains 4,4′-bpy-bridged linear polymeric [Co(4,4′-bpy)(H2O)4]n chains, where the cobalt(II) is coordinated in a slightly distorted octahedral environment by four water molecules (Co-O 2·088(2)-2·101(2) Å) at the equatorial positions and two nitrogen atoms of the bridging 4,4′-bpy ligands (Co–N 2·149(2) Å) at the axial positions. The chains are interconnected into a two-dimensional rhombic network by double hydrogen-bond bridges of the type Co–H2O · · · bpy · · · H2O–Co. The zinc complex also crystallizes in the triclinic space group P-1 with a 9·0230(11), b 11·299(2), c 16·397(2) Å, α 74·429(11), β 83·132(9), γ 70·654(12)°, V 1518·5(3) Å3. The crystal structure contains 4,4′-bpy-bridged linear polymeric [Zn(4,4′-bpy)(H2O)3(ClO4)]n chains, where the zinc atom is coordinated in a distorted octahedral environment by two nitrogen atoms of the bridging 4,4′-bpy ligands (Z–N 2·104(2)–2·117(2) Å), three water molecules (Zn–O 2·068(2)–2·091(2) Å) and one monodentate ClO4- anion (Zn–O 2·320(2) Å). The chains are interconnected into a rhombic network alternately by single or double hydrogen-bond bridges of the type Zn–H2O · · · 4,4′-bpy · · · H2O–Zn.

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19

Zheng, Pei Yao, and Douglas W. Stephan. "Diphosphido bridged early/late heterobimetallic complexes: synthesis and molecular structure of Cp2Zr(μ-PPh2)2ReH(CO)3." Canadian Journal of Chemistry 67, no. 10 (October 1, 1989): 1584–89. http://dx.doi.org/10.1139/v89-241.

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The reaction of the metal–metal bonded complex Re2(CO)10 with Cp2Zr(PPh2)2 results in formation of the diphosphido bridged heterobimetallic species, Cp2Zr(μ-PPh2)2ReH(CO)3, 1. Complex 1 crystallizes in the space group P21/c with a = 17.393(3) Å, b = 14.348(7) Å, c = 13.036(3) Å, β = 92.35(2)°, Z = 4, and V = 3250(2) Å3. The crystallographic study confirmed that complex 1 contains two phosphido bridges between the Zr and Re centres. The Zr—P bond distances are 2.629(3) and 2.615(3) Å, while the Re—P bonds are 2.498(3) and 2.474(3) Å. The Zr—Re separation is 3.274(1) Å. The details of the geometry of the ZrP2Re core are discussed in relation to that of other diphosphido bridged early/late heterobimetallics. The possibility of dative bonding between the electron-rich, late metal and the electron-deficient early metal centre is discussed. The data indicate that if such dative bond is present in the d0–d6 complex 1, it is very weak. Keywords: rhenium, zirconium, heterobimetallic, crystal structure.

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20

Zhao, Peihua, Jeffery A. Bertke, and Thomas B. Rauchfuss. "Crystal structure of [μ2-3,3-dimethyl-4-(propan-2-ylidene)thietane-2,2-dithiolato-κ4S:S′:S:S′]bis[tricarbonyliron(I)](Fe—Fe)." Acta Crystallographica Section E Crystallographic Communications 71, no. 11 (October 10, 2015): 1296–99. http://dx.doi.org/10.1107/s2056989015018496.

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The title complex, [Fe2(C8H12S3)(CO)6] or [{Fe(CO)3}2(μ-L)] [L= 3,3-dimethyl-4-(propan-2-ylidene)thietane-2,2-bis(thiolato)], consists of two Fe(CO)3moieties double-bridged by a dithiolate ligand. Each of the two FeIatoms has a distorted anti-prismatic coordination environment consisting of three carbonyl groups, two S atoms of the dithiolate ligand and the neighboring FeIatom [Fe—Fe = 2.4921 (4) Å]. Weak C—H...O intermolecular interactions result in the formation of dimers. This is the second crystal structure reported with the 3,3-dimethyl-4-(propan-2-ylidene)thietane-2,2-bis(thiolate) ligand and the first in which it bridges two metal atoms.

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21

Gatehouse, BM, G. Mclachlan, LL Martin, RL Martin, and L. Spiccia. "Crystal and Molecular Structure of the Peroxo-Bridged Dimer [(trenen)CoO2Co(trenen)] (ClO4)4 Where trenen = N,N,N'-Tris(2-aminoethyl)-ethane-1,2-diamine." Australian Journal of Chemistry 44, no. 3 (1991): 351. http://dx.doi.org/10.1071/ch9910351.

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The preparation and crystal structure of the brown crystalline cobalt(III) dimer [( trenen )CoO2-Co( trenen )](ClO4)4 is described where the pentadentate ligand trenen is N,N,N′- tris (2-aminoethyl)ethane-1,2-diamine. The compound forms monoclinic crystals with a 13.132, b 14.214, c 8.906Ǻ and β 91.53°, and two formula units in the unit cell, in space group P21/n. The nitrogen atoms of the trenen ligand occupy five of the six slightly distorted octahedral sites about each cobalt atom with a peroxo bridge linking the two Co( trenen ) moieties through the sixth site. The Co-O-O-Co dihedral angle is 180°, the molecule possesses a centre of symmetry, and the peroxo bridging group is situated trans to the secondary nitrogen atom attached to each cobalt atom (the s,s -isomer). The electronic spectrum displays a strong (є 13700 dm3 mol-1 cm-1) absorption band at 302 nm which is typical of peroxo -bridged dicobalt complexes with a single transplanar CoO2Co bridge.

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22

Stoll, Carola, Ingo-Peter Lorenz, Kurt Polbom, and Erich Friedrich Paulus. "Umsetzung von Cyclopentadienylmetallcarbonylen mit Thionylhalogeniden - Neue Synthese halogenoverbrückter Cp*Co-Komplexe / Reaction of Cyclopentadienyl Metal Carbonyles with Thionylhalides - New Synthesis of Halogeno-Bridged Cp*Co Complexes." Zeitschrift für Naturforschung B 54, no. 5 (May 1, 1999): 583–90. http://dx.doi.org/10.1515/znb-1999-0503.

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The reaction of Cp*Co(CO)2 with thionylchloride in hexane affords the doubly bridged dimer (Cp*CoCl2)2. Whereas the same reaction in more polar solvents such as CH2Cl2 or thf gives the triply bridged dinuclear cations in the salt [(Cp*Co)2(μ-Cl)3]2 [Co2Cl6], no influence of the solvent is observed in the reaction of Cp*Co(CO)2 with thionylbromide, which results in the formation of the neutral dimer (Cp*CoBr2)2. The X-ray structure analysis of (Cp*CoBr2)2 shows two edge-sharing octahedra, while that of [(Cp*Co)2(μ-Cl)3]2[Co2Cl6] shows two facesharing octahedra in the cation and two edge-sharing tetrahedra in the anion.

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23

Xu, Miaomiao, Xiang Hao, Zhiwei Hu, and Qiang Yan. "Palladium-bridged polymers as CO-biosignal-responsive self-healing hydrogels." Polymer Chemistry 11, no. 4 (2020): 779–83. http://dx.doi.org/10.1039/c9py01660k.

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24

Plešek, Jaromír, Andreas Franken, and Roland Fröhlich. "The Structure of [6,6'-μ-S(1,7-C2B9H10)2-2-Co]-[PPh4]+." Collection of Czechoslovak Chemical Communications 62, no. 1 (1997): 57–61. http://dx.doi.org/10.1135/cccc19970057.

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Single crystal X-ray structure of monoatomically bridged [6,6'-μ-S(1,7-C2B9H10)2-2-Co]-[PPh4]+ is reported and selected bond lengths and angles are tabulated. A distinctly smaller dihedral angle (12.2°) between both pentagonal ligand planes than found earlier in the formally related symmetric analogue 8,8'-μ-MeOCOCH2S(1,2-C2B9H10)2-3-Co (16.5°) is discussed. This is the first reported X-ray structure of a monoatomically bridged cobaltacarborane with nonadjacent carbon atoms in deltahedral ligands.

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25

Hou, Yuxia, Enhui Zhang, Jiayin Gao, Shuaiqi Zhang, Ping Liu, Ji-Chao Wang, Yuping Zhang, Cheng-Xing Cui, and Jianzhuang Jiang. "Metal-free azo-bridged porphyrin porous organic polymers for visible-light-driven CO2 reduction to CO with high selectivity." Dalton Transactions 49, no. 22 (2020): 7592–97. http://dx.doi.org/10.1039/d0dt01436b.

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26

Tandon, Santokh S., Neil Patel, Scott D. Bunge, Esther C. Wang, Rachel Thompson, and Laurence K. Thompson. "One-Pot Self-Assembly of Dinuclear, Tetranuclear, and H-Bonding-Directed Polynuclear Cobalt(II), Cobalt(III), and Mixed-Valence Co(II)/Co(III) Complexes of Schiff Base Ligands with Incomplete Double Cubane Core." Materials 13, no. 23 (November 28, 2020): 5425. http://dx.doi.org/10.3390/ma13235425.

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The reaction of 2,6-diformyl-4-methylphenol (DFMF) with 1-amino-2-propanol (AP) and tris(hydroxymethyl)aminomethane (THMAM) was investigated in the presence of Cobalt(II) salts, (X = ClO4−, CH3CO2−, Cl−, NO3−), sodium azide (NaN3), and triethylamine (TEA). In one pot, the variation in Cobalt(II) salt results in the self-assembly of dinuclear, tetranuclear, and H-bonding-directed polynuclear coordination complexes of Cobalt(III), Cobalt(II), and mixed-valence CoIICoIII: [Co2III(H2L−1)2(AP−1)(N3)](ClO4)2 (1), [Co4(H2L−1)2(µ3-1,1,1-N3)2(µ-1,1-N3)2Cl2(CH3OH)2]·4CH3OH (2), [Co2IICo2III(HL−2)2(µ-CH3CO2)2(µ3-OH)2](NO3)2·2CH3CH2OH (3), and [Co2IICo2III (H2L12−)2(THMAM−1)2](NO3)4 (4). In 1, two cobalt(III) ions are connected via three single atom bridges; two from deprotonated ethanolic oxygen atoms in the side arms of the ligands and one from the1-amino-2-propanol moiety forming a dinuclear unit with a very short (2.5430(11) Å) Co-Co intermetallic separation with a coordination number of 7, a rare feature for cobalt(III). In 2, two cobalt(II) ions in a dinuclear unit are bridged through phenoxide O and μ3-1,1,1-N3 azido bridges, and the two dinuclear units are interconnected by two μ-1,1-N3 and two μ3-1,1,1-N3 azido bridges generating tetranuclear cationic [Co4(H2L−1)2(µ3-1,1,1-N3)2(µ-1,1-N3)2Cl2(CH3OH)2]2+ units with an incomplete double cubane core, which grow into polynuclear 1D-single chains along the a-axis through H-bonding. In 3, HL2− holds mixed-valent Co(II)/Co(III) ions in a dinuclear unit bridged via phenoxide O, μ-1,3-CH3CO2−, and μ3-OH− bridges, and the dinuclear units are interconnected through two deprotonated ethanolic O in the side arms of the ligands and two μ3-OH− bridges generating cationic tetranuclear [Co2IICo2III(HL−2)2(µ-CH3CO2)2(µ3-OH)2]2+ units with an incomplete double cubane core. In 4, H2L1−2 holds mixed-valent Co(II)/Co(III) ions in dinuclear units which dimerize through two ethanolic O (μ-RO−) in the side arms of the ligands and two ethanolic O (μ3-RO−) of THMAM bridges producing centrosymmetric cationic tetranuclear [Co2IICo2III (H2L1−2)2(THMAM−1)2]4+ units which grow into 2D-sheets along the bc-axis through a network of H-bonding. Bulk magnetization measurements on 2 demonstrate that the magnetic interactions are completely dominated by an overall ferromagnetic coupling occurring between Co(II) ions.

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27

Niemer, Burkhard, Torsten Weidmann, and Wolfgang Beck. "Kohlenwasserstoffverbrückte Metallkomplexe, XXIV. Pentacarbonylrhenio-substituierte Thiophen-, Cyclohexadienyl-und Benzol-Komplexe von Mangan, Rhenium und Eisen/Hydrocarbon Bridged Complexes, XXIV. Pentacarbonylrhenio Substituted Thiophene, Cyclohexadienyl and Benzene Complexes of Manganese, Rhenium and Iron." Zeitschrift für Naturforschung B 47, no. 4 (April 1, 1992): 509–16. http://dx.doi.org/10.1515/znb-1992-0410.

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Abstract The addition of pentacarbonylrhenate to [(OC)3Mn(thiophene)]+, [(OC)3M(η6-C6H4R2)]+ (M = Mn, Re; R = H, Me, Cl) yields the σ,π-hydrocarbon bridged complexes (OC)3Mn(μ-η4:η1-C4H4S)Re(CO)5 and (OC)3M(μ-η6:η1-C6H4R2)Re(CO)5, respectively. The latter complexes have also been obtained from (OC)5MFBF3 (M = Mn, Re) and C6H5Re(CO)5. The fluxional behaviour of the cyclohexadienyl bridged complexes is probably due to a 1,2-shift of the Re(CO)5 group. The reaction of [Re(CO)5]-with [(η5-C5H5)Fe(η6-p-C6H4(R)Cl)]+ (R = H, Me, Cl) proceeds with substitution of chlorine to give the heterobimetallic compounds [(η5-C5H5)Fe[μ-η6:η1-C6H4(R)]Re(CO)5]+.

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28

Khorasani-Motlagh, Mozhgan, Nasser Safari, Craig B. Pamplin, Brian O. Patrick, and Brian R. James. "Reaction of H2S with MoRu(CO)6(dppm)2 to give H2 and a bridged-sulfide product via hydrido-sulfhydryl intermediates (dppm = Ph2PCH2PPh2)." Canadian Journal of Chemistry 84, no. 2 (February 1, 2006): 330–36. http://dx.doi.org/10.1139/v06-002.

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Oxidative addition of H2S to MoRu(CO)6(µ-dppm)2 (1) at ~20 °C in toluene yields an isolable complex formulated as Mo(CO)3(µ-SH)(µ-CO)(µ-dppm)2RuH(CO) (2) via the possible intermediate Mo(CO)3(µ-H)(µ-CO)(µ-dppm)2Ru(SH)(CO) (4) (dppm = Ph2PCH2PPh2) that is detectable at lower temperatures. Over 2 days, species 2 in toluene loses H2 (and CO) to yield the bridged-sulfide product, Mo(CO)2(µ-CO)(µ-S)(µ-dppm)2Ru(CO) (5) that is also formed directly from the reaction of 1 with elemental sulfur. The solid-state molecular structure of 5 is determined by X-ray crystallography. A further hydrido-sulfhydryl species, possibly Mo(CO)3(µ-SH)(µ-H)(µ-dppm)2Ru(CO)2 (3), is in equilibrium with 2 at ambient temperature.Key words: molybdenum, ruthenium, bis(diphenylphosphino)methane, hydrogen sulfide, hydrido-sulfhydryl species, carbonyl complexes, bridged-sulfide complex.

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29

Caballero-Jiménez, Judith, Fatemah Habib, Daniel Ramírez-Rosales, Rafael Grande-Aztatzi, Gabriel Merino, Ilia Korobkov, Mukesh Kumar Singh, Gopalan Rajaraman, Yasmi Reyes-Ortega, and Muralee Murugesu. "Inducing magnetic communication in caged dinuclear Co(ii) systems." Dalton Transactions 44, no. 18 (2015): 8649–59. http://dx.doi.org/10.1039/c5dt00497g.

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30

Sun, Guifang, Jianni Guo, Meng Yang, Lu Xi, Licun Li, and Jean-Pascal Sutter. "Two-dimensional Co–Ln networks bridged by phenyl pyrimidyl substituted nitronyl nitroxides: structural and magnetic properties." Dalton Transactions 47, no. 13 (2018): 4672–77. http://dx.doi.org/10.1039/c8dt00270c.

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31

Franken, Andreas, Jaromír Plešek, and Christiane Nachtigal. "Unusual Rearrangement of Naphthalene in the Synthesis of a Novel B8-B8-Bridged Derivative in the [(1,2-C2B9H11)2-3-Co]- Series. X-Ray Structure and 11B NMR Spectra of [8,8'-μ-(CH2-C9H6)-(1,2-C2B9H10)2-3-Co]- (CH3)4N+." Collection of Czechoslovak Chemical Communications 62, no. 5 (1997): 746–51. http://dx.doi.org/10.1135/cccc19970746.

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On treatment of the [(1,2-C2B9H11)2Co]- ion with naphthalene in presence of AlCl3 a remarkably bridged [8,8'-μ-(CH2-C9H6)-(1,2-C2B9H10)2-3-Co]- ion is obtained as a single isolated compound. The triatomic -CH2-C9H6- bridge is derived from the rearranged naphthalene nucleus. The mechanism of this reaction is obscure but it does resemble the "Electrophile-Induced Nucleophilic Substitution" reported earlier. The structure of the compound was established by multinuclear NMR spectroscopy and by single crystal X-ray diffraction.

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32

Curless, Liam D., Ewan R. Clark, Jessica Cid, Alessandro Del Grosso, and Michael J. Ingleson. "Complete reductive cleavage of CO facilitated by highly electrophilic borocations." Chemical Communications 51, no. 54 (2015): 10903–6. http://dx.doi.org/10.1039/c5cc03504j.

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33

Bitterer, F., D. J. Brauer, F. Dörrenbach, F. Gol, P. C. Knüppel, O. Stelzer, C. Krüger, and Y. H. Tsay. "Reduktive Enthalogenierung von (Cl, Br)RP–CH2–PR(Cl, Br) mit Fe2(CO)9– Bildung von Komplexen mit gespannten Diphosphirangerüsten und bifunktionellen Phosphidobrücken (µ2-PR)2CH2 / Reductive Dehalogenation of (Cl, Br)RP–CH2—PR(Cl, Br) with Fe2(CO)9– Formation of Complexes with Strained Diphosphirane Skeletons and Bifunctional Phosphido Bridges (μ2-PR)2CH2." Zeitschrift für Naturforschung B 46, no. 9 (September 1, 1991): 1131–44. http://dx.doi.org/10.1515/znb-1991-0901.

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Reductive dehalogenation of the bifunctional methylene bridged halogenphosphines XRP-CH2—PRX (X = Cl, Br; R = iPr, tBu, 2,4,6-R′3C6H2 (R′ = Me, iPr, tBu), N(SiMe3)2 and 2,6,4-tBu2MeC6H2—O) with diironenneacarbonyl affords phosphido complexes with strained RP—CH2—PR backbones, Fe2(CO)6[(μ2-PR)2CH2] (8a-8g). X-Ray structural analyses of the 2,4,6-iPr3C6H2 (8d) and 2,6,4-tBu2MeC6H2—O derivatives (8g) reveal that the Fe2P2C skeletons have remarkably small P—C—P angles (83,7(4)° (8d), 78,6(1)° (8g)).The dehalogenation of XRP—CH2—PRX with Fe,(CO)9 is preceded by the formation of iron carbonyl complexes (RXP—CH2—PRX)[Fe(CO)4]n (n = 1, 2). For derivatives with bulky substituents R complex formation proceeds diastereoselectively. In case of 3 b the diastereoisomers could be separated and a crystallographic examination of the racemic form showed that the P—C—P backbone possesses C2 symmetry with an approximately trans conformation of the P—C—P fragment. The P-atoms occupy the equatorial position within the Fe(CO)4P units.The chloro-phosphido bridged complex Fe2(CO)6(μ2-Cl)(µ2-PR—CH2—PRCl—Fe(CO)4) (4a), formed by oxidative addition of a P—Cl bond to Fe(0), or diphosphiranes and their complexes [(RP)2CH2][Fe(CO)4]n (n = 0-2; 5-7) have been isolated as intermediates of the XRP-CH2—PRX dehalogenation. The diphosphiranes 5 were synthesized independently by reduction of the halogenphosphines XRP—CH2—PRX with lithium or magnesium. An X-ray examination of 4a showed that it contains a μ2-PR—CH2—PRCl backbone which bridges Fe2(CO)6(μ2-Cl) and Fe(CO)4 units, the P—C—P angle being remarkably large, 127,3(1)°.

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34

Zhao, Jiong-Peng, Cui Zhao, Wei-Chao Song, Lei Wang, Yabo Xie, Jian-Rong Li, and Xian-He Bu. "4-Substituent pyridine directed cobalt(ii) azides: solvothermal synthesis, structure, and magnetic properties." Dalton Transactions 44, no. 22 (2015): 10289–96. http://dx.doi.org/10.1039/c5dt00568j.

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Azido-bridged magnetic complexes: Different 4-substituent groups of pyridine co-ligands directed the linkages between azide and Co(ii) ions, to give three azide–Co(ii) complexes with different structures and magnetic properties.

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35

LEBRUN, Bruno, Régine ROMI-LEBRUN, Marie-France MARTIN-EAUCLAIRE, Akikazu YASUDA, Masaji ISHIGURO, Yoshiaki OYAMA, Olaf PONGS, and Terumi NAKAJIMA. "A four-disulphide-bridged toxin, with high affinity towards voltage-gated K+ channels, isolated from Heterometrus spinnifer (Scorpionidae) venom." Biochemical Journal 328, no. 1 (November 15, 1997): 321–27. http://dx.doi.org/10.1042/bj3280321.

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A new toxin, named HsTX1, has been identified in the venom of Heterometrus spinnifer (Scorpionidae), on the basis of its ability to block the rat Kv1.3 channels expressed in Xenopus oocytes. HsTX1 has been purified and characterized as a 34-residue peptide reticulated by four disulphide bridges. HsTX1 shares 53% and 59% sequence identity with Pandinus imperator toxin1 (Pi1) and maurotoxin, two recently isolated four-disulphide-bridged toxins, whereas it is only 32-47% identical with the other scorpion K+ channel toxins, reticulated by three disulphide bridges. The amidated and carboxylated forms of HsTX1 were synthesized chemically, and identity between the natural and the synthetic amidated peptides was proved by mass spectrometry, co-elution on C18 HPLC and blocking activity on the rat Kv1.3 channels. The disulphide bridge pattern was studied by (1) limited reduction-alkylation at acidic pH and (2) enzymic cleavage on an immobilized trypsin cartridge, both followed by mass and sequence analyses. Three of the disulphide bonds are connected as in the three-disulphide-bridged scorpion toxins, and the two extra half-cystine residues of HsTX1 are cross-linked, as in Pi1. These results, together with those of CD analysis, suggest that HsTX1 probably adopts the same general folding as all scorpion K+ channel toxins. HsTX1 is a potent inhibitor of the rat Kv1.3 channels (IC50 approx. 12 pM). HsTX1 does not compete with 125I-apamin for binding to its receptor site on rat brain synaptosomal membranes, but competes efficiently with 125I-kaliotoxin for binding to the voltage-gated K+ channels on the same preparation (IC50 approx. 1 pM).

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36

Brauer, David J., Sibbele Hietkam, Herbert Sommer, and Othmar Stelzer. "Lineare Oligophosphaalkane, XII [1] PH-funktionelle Methylenbisphosphane — eine Quelle für Phosphinidene und Phosphoratome in Clustern und Fe4P-Spiroverbindungen / Linear Oligophosphaalkanes, XII [1] PH-Functional Methylenebisphosphanes — a Source of Phosphinidenes and Phosphorus Atoms in Clusters and Fe4P Spiro Compounds." Zeitschrift für Naturforschung B 40, no. 12 (December 1, 1985): 1677–90. http://dx.doi.org/10.1515/znb-1985-1214.

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Abstract On reacting PH-functional m ethylenebisphosphanes (iPr)HPCH2PH2 (1) and RHPCH2PR2 (R = CH2Ph) with excess Fe2(CO)9 P -C -P-bond cleavage occurs. As a result β-phosphido bridged clusters e.g. Fe3(CO)8(μ2-PRCH2PR2)(μ3-PR)(μ2-H) (11) and Fe4(μ4-P) spiro com pounds with naked phosphorus atoms Fe4(CO)13(μ4-P)(μ2-PRCH2PR2) (10) or Fe4(CO)14(μ4-P)(μ2-P(/Pr)Me) (6) are obtained. Uptake of one molecule of CO by 11 and ametallation of one CH2Ph substituent within the PR2 donor group yields 12. Compound 10 • CH2C12 crystallizes in the space group C21/c with a = 36.357(7), b = 10.752(2), c = 22.879(5) Å , β - 112.45(1)°, Z = 8 {R = 0.050 for 5213 reflections). Both the phosphido atoms of the μ2- PRCH2PR2 group and the μ4-P atom span the Fe1 -Fe2 bond of a Fe2(CO)6 species while only the μ4-P atom spans the Fe3 -Fe4 bond of a (CO)4FeFe(CO)3 fragment. In addition, the Fe(CO)3 part of the latter unit is bonded to the tertiary P atom of the μ2-PRCH2PR2 group. Compounds 11 and 12 cocrystallize in the space group P1 with a = 11.541(2), b = 17.739(2), c - 19.284(2) Å , a = 78.01(1), β = 78.68(1), y = 90.36(1)°, Z = 2 of each (R = 0.051 for 10234 reflections). A(CO)3Fe -Fe(CO)2-Fe(CO)3 core having an acute Fe11-Fe12 -Fe13 angle of 77.46(3)° at the Fe(CO)2 group is found for 11. The Fe12 - Fe13 bond is bridged by both the ,μ3-PR group and the hydride ligand. The Fe 11 -Fe 13 contact is spanned by the μ3-PR ligand and the ,μ2-P atom of the ,m2-PRCH2PR2 species. Three Fe(CO)3 groups are bridged by the μ3-PR ligand in 12. Only two of the Fe(CO)3 groups appear to be directly bonded. Fe21 -Fe23 is bridged by the μ2-P atom of the ,μ2-PRCH 2PRCHPh ligand while Fe22 -Fe23 displays a novel Fe22 - P - C -Fe23 linkage

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37

Madhu, Sheri, Vijaya Kumar Hinge, and Mangalampalli Ravikanth. "Synthesis and properties of rhenium(I) bridged boron-dipyrromethene dyad." Journal of Porphyrins and Phthalocyanines 18, no. 07 (July 2014): 535–41. http://dx.doi.org/10.1142/s1088424614500266.

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We synthesized the hexa-coordinated Re ( I ) bridged BODIPY dyad 1 in decent yield by thermal reaction of benzimidazole substituted BODIPY 2 with Re ( CO )5 Cl . The dyad 1 was characterized by 1 H , 13 C , 11 B , 19 F NMR, ESI-MS, FTIR, UV-vis, and electrochemical techniques. In Re ( I ) bridged dyad 1, the Re ( I ) ion is hexa-coordinated and coordinates with nitrogen atoms of two benzimidazole units, three axial carbonyl ligands and one chloride atom. The presence of three carbonyl groups in dyad 1 was verified by 13 C NMR and IR spectroscopy. The absorption and steady-state fluorescence spectra of Re ( I ) bridged BODIPY dyad showed a slightly broad and hypsochromically shifted absorption and emission bands compared to BODIPY 2. The electrochemical studies indicated that, the Re ( I ) bridge BODIPY dyad 1 was easy to reduce compared to BODIPY 2 supporting the electron deficient nature dyad upon Re ( I ) ion binding. The molecular structure of dyad 1 was further elucidated by DFT computational studies.

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38

Elschenbroich, Christoph, Heike Burdorf, Helmut Burdorf, Dagmar Mahrwald, and Bernhard Metz. "Metall-π-Komplexe von Benzolderivaten, XLaSelen in der Peripherie des Bis(benzol)chroms: Darstellung, Strukturdynamik und Redoxverhalten eines neuen Hetera-[3]-chromocyclophans / Metal-π Complexes of Benzene Derivatives, XLaSelenium in the Periphery of Bis(benzene)chromium: Synthesis, Structural Dynamics, and Redox Behavior of a New Hetera-[3]-chromocyclophane." Zeitschrift für Naturforschung B 47, no. 8 (August 1, 1992): 1157–64. http://dx.doi.org/10.1515/znb-1992-0817.

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Lithiation of bis(benzene)chromium and subsequent reaction with Ph2Se2 or Se and CH3I, respectively, afforded the complexes (PhSe-η6-C6H5)2Cr (6) and (MeSe-η6-C6H5)2Cr (8), the latter being convertible into interannularly bridged (MeSe-η6-C6H5)2Cr[M(CO)4] (9-11, M = Cr, Mo, W). According to 1H NMR spectroscopy, 9 undergoes both bridge inversion and reversal, the former displaying spectral coalescence at 283 K (ΔGc≠ = 55.9 kJ mol-1) whereas the latter is still rapid at 200 K. Substitution of H for –SeMe and addition of a Cr(CO)4 unit effect anodic shifts of the redox potential E1/2(+/0) of 95 mV/SeMe and 230 mV/Cr(CO)4. Despite electron donation from the bis(arene)metal backbone 8 is a fairly weak ligand, cleavage of the interannular bridge occuring with the half life τ1/2 = 41.4 min (9→8) and τ1/2 = 5.8 s (9+•→8+) as inferred from cyclic voltammetry in DME at 293 K.

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39

Lin, Jiann T., Shiow Y. Wang, An C. Yeh, Thamas Y. R. Tsai, Shie-Ming Peng, Gene H. Lee, and Yuh S. Wen. "Hydrogen-Bridged Trinuclear Nitrosyl Carbonyl Tungstate: H2W3(CO)13(NO)-." Inorganic Chemistry 33, no. 9 (April 1994): 1948–52. http://dx.doi.org/10.1021/ic00087a035.

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40

Liu, Shuang, Lei-Lei Li, Wen-Zhen Wang, Tian Han, Hong-Ling Gao, and Jian-Zhong Cui. "Slow magnetic relaxation in a carboxylate-bridged Co II complex." Journal of Molecular Structure 1150 (December 2017): 293–98. http://dx.doi.org/10.1016/j.molstruc.2017.08.110.

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41

Maurer, Jörg, Biprajit Sarkar, Brigitte Schwederski, Wolfgang Kaim, Rainer F. Winter, and Stanislav Záliš. "Divinylphenylene-Bridged Diruthenium Complexes Bearing Ru(CO)Cl(PiPr3)2Entities†." Organometallics 25, no. 15 (July 2006): 3701–12. http://dx.doi.org/10.1021/om0602660.

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42

da Silva, Ana C., Holger Piotrowski, Peter Mayer, Kurt Polborn, and Kay Severin. "Heterometallic bromo-bridged complexes with a Re(CO)3 fragment." Journal of the Chemical Society, Dalton Transactions, no. 17 (2000): 2960–63. http://dx.doi.org/10.1039/b004262p.

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43

Arif, Atta M., and Thomas G. Richmond. "A silver co-ordination polymer bridged by a conjugated ligand." Journal of the Chemical Society, Chemical Communications, no. 12 (1990): 871. http://dx.doi.org/10.1039/c39900000871.

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44

Campo, J., L. R. Falvello, E. Forcén-Vázquez, C. Sáenz de Pipaón, F. Palacio, and M. Tomás. "A symmetric, triply interlaced 3-D anionic MOF that exhibits both magnetic order and SMM behaviour." Dalton Transactions 45, no. 42 (2016): 16764–68. http://dx.doi.org/10.1039/c6dt02652d.

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Triply interpenetrated diamondoid nets of a Co citrate MOF, formed by SMM Co citrate cubanes bridged by six-coordinated Co(ii), preserve SMM behavior with magnetic blocking at 3.8 K, presenting magnetic order at 2.7 K.

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45

Kurokawa, Masashi, Judy Fe F. Jose-Larong, Hiroyuki Hasegawa, Yukihiro Takahashi, Jun Harada, and Tamotsu Inabe. "Structural and transport properties of neutral radical crystals of CoIII(tmp)(CN)2 (tmp = 5,10,15,20-tetramethylporphyrinato) and the CN-bridged polymer [CoIII(tmp)(CN)]n." Dalton Transactions 46, no. 13 (2017): 4422–29. http://dx.doi.org/10.1039/c6dt04418b.

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46

Kuo, Hsin-Ya, Tia S. Lee, An T. Chu, Steven E. Tignor, Gregory D. Scholes, and Andrew B. Bocarsly. "A cyanide-bridged di-manganese carbonyl complex that photochemically reduces CO2 to CO." Dalton Transactions 48, no. 4 (2019): 1226–36. http://dx.doi.org/10.1039/c8dt03358g.

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A cyanide-bridged di-manganese complex, {[Mn(bpy)(CO)₃]₂(μ-CN)}⁺, is introduced as an efficient electrocatalyst and photochemically active for proton-assisted of CO₂ reduction to CO.

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47

Bernhardt, Wolfgang, Hans-Thomas Schacht, and Heinrich Vahrenkamp. "Umwandlungen zwischen Vinyliden- und Alkylidin-verbrückten Dreikernclustern / Interconversions between Vinylidene and Alkylidyne Bridged Trinuclear Clusters." Zeitschrift für Naturforschung B 44, no. 9 (September 1, 1989): 1060–66. http://dx.doi.org/10.1515/znb-1989-0913.

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Based on the observation that the alkylidyne bridged cluster HFeCo2(CO)9(μ3-C—CH3) spontaneously loses H2 to form the vinylidene bridged cluster FeCo2(CO)9(μ3-C=CH2), the interconversions between these types of ligands on mixed trinuclear clusters were investigated. It was found that in all cases clusters of the type HM3μ3-C—CH2R) could be transformed into clusters of the type M3(μ3-C=CHR); for M3 = FeCo2, FeCoMo, RuCoMo, RuCoW, OsCoMo, OsCoW; for R = H and in one case CH3; for dehydrogenation by thermolysis and in one case H+/H- elimination. Conversely, hydrogenation of the vinylidene bridged clusters to the alkylidyne bridged clusters was only possible for the FeCoMo, RuCoMo, and RuCoW systems, for the unsubstituted C=CH2 ligand, and for elemental hydrogen as the reagent. Together with previous observations this leads to the conclusion that among the interconvertible alkyne, vinylidene, and alkylidyne ligands the vinylidene unit represents the most stable entity on trinuclear clusters.

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48

Jenkins, Hilary A., Stephen J. Loeb, and Neil T. McManus. "(CO)(Pet3)ClIr(μ-Pcy2)2IrCl(Pet3)(CO), a phosphido-bridged bimetallic iridium(II) complex." Inorganica Chimica Acta 159, no. 1 (May 1989): 83–86. http://dx.doi.org/10.1016/s0020-1693(00)80898-1.

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49

Beck, Wolfgang, Burkhard Niemer, and Barbara Wagner. "Directed Synthesis of Trinuclear Hydrocarbon-Bridged Complexes such as [(OC)5ReCH2CH2Os(CO)4CH2CH2Re(CO)5]." Angewandte Chemie International Edition in English 28, no. 12 (December 1989): 1705–6. http://dx.doi.org/10.1002/anie.198917051.

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50

Astley, Stephen T., and Josef Takats. "Cycloheptatrienyl bridged heterobimetallic complexes: synthesis and reactivity of (μ-C7H7)Ru(CO)3Ir(CO)2." Journal of Organometallic Chemistry 363, no. 1-2 (March 1989): 167–74. http://dx.doi.org/10.1016/0022-328x(89)88050-7.

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