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Journal articles on the topic 'Rhodium i complexe'

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Published: 4 June 2021

Last updated: 1 February 2022

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1

Lemoine, P., A. Tomas, B. Viossat, Y. Mettey та J. M. Vierfond. "Complexe entre un Carboxylate de Rhodium(II) et un Dérivé de la [1,4]Thiazépine: Synthèse et Structure Cristalline de Tétrakis(μ-acétato)bis{[11-aminodibenzo[b,f][1,4]thiazépine]rhodium(II)}(Rh—Rh)". Acta Crystallographica Section C Crystal Structure Communications 51, № 3 (1995): 377–80. http://dx.doi.org/10.1107/s0108270194006773.

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2

Talavera, Maria, Robert Müller, Theresia Ahrens, et al. "Activation of tetrafluoropropenes by rhodium(i) germyl and silyl complexes." Faraday Discussions 220 (2019): 328–49. http://dx.doi.org/10.1039/c9fd00059c.

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The activation of tetrafluoropropenes at rhodium silyl and germyl complexes revealed various reaction pathways such as the generation of organic derivatives of the substrate and a rhodium fluorido complex or the formation of rhodium vinyl complexes.

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3

Lindner, Ekkehard, Horst W. Schneider, Riad Fawzi, Ulrich Englert, and Wolfgang Hiller. "Rhodium(I)-Komplexe mit 2,5-Difurfurylpyrrol-Liganden / Rhodium(I) Complexes with 2,5-Difurfurylpyrrole Ligands." Zeitschrift für Naturforschung B 43, no. 12 (1988): 1598–610. http://dx.doi.org/10.1515/znb-1988-1212.

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Abstract The 2.5-difurfurylpyrrole-O.N.O ligands 3a, b [R = CO2C2H5 (a). COCH, (b)] are obtained by reaction of the furanes l a , b with the 2,5-bis(chloromethyl)pyrrole 2 in the presence of SnCl4. Proton abstraction from 3a, b with NaH affords the sodium salts 4a-Na and 4b-Na. Exchange of the chlorine bridges in [μ-ClRh(Diol)]2 (5,5') (Diol = cyclooctadiene, norbornadiene) results in the formation of the 14-electron complexes (Diol)Rh(O.N.O) (6a,6'a). Addition of PPh3, yields the four-coordinated rhodium complexes (Diol)Rh(O.N.O)(PPh3) (7a,7'a). These compounds are also available in a reverse

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4

LaRonde, Frank J., and Michael A. Brook. "Allylation of aldehydes catalyzed by chiral N,N'-bis(N-methyl-2-methylene-4,5-bisphenyl-imidazole)-1,2-cyclohexane diamine rhodium(III) complexes." Canadian Journal of Chemistry 81, no. 11 (2003): 1206–12. http://dx.doi.org/10.1139/v03-118.

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Chiral bis-imidazole rhodium(III) complexes catalyze the allylation of aldehydes by allyltributyltin. The pre-catalyst was readily prepared from chiral N,N'-bis(N-methyl-2-methylene-4,5-bisphenylimidazole)-1,2-cyclohexanediamine, potassium carbonate, and rhodium(III) chloride trihydrate. The rhodium(III) complex produced showed no activity in an allyl transfer process in the presence of the allyltin reagent. However, when silver tetrafluoroborate was added to the pre-catalyst and stirred for 1 h, the resulting system became an efficient catalyst for the allyl transfer process. The reductions p

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5

Gulyás, H., A. Dobó, and J. Bakos. "Synthesis of sulfated mono- and ditertiary phosphines, complex chemistry and catalysis." Canadian Journal of Chemistry 79, no. 5-6 (2001): 1040–48. http://dx.doi.org/10.1139/v01-040.

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Cyclic and bicyclic sulfates have been prepared from commonly available alcohols. Nucleophilic cleavage of the cyclic sulfates affords a new type of water-soluble mono- and ditertiary phophines bearing -OSO3Li groups in distinguished positions in the molecular framework. Both phosphines have amphiphilic character. Reactions of the chiral 2 and the dppp analogue 5 with [Rh(COD)Cl]2 and Pt(PhCN)2Cl2 provide novel zwitterionic complexes. Rhodium complexes of 2 and 5 have been successfully applied in liquid biphasic hydroformylation of styrene and octene-1. When the rhodium complex of 5 was used a

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6

Viossat, B., Nguyen Huy Dung, J. C. Daran та J. C. Lancelot. "Complexe entre un carboxylate de rhodium(II) et un dérivé de la pyrazine: synthèse et structure de tétrakis(μ-acétato)bis[2-(1-pyrrolyle)pyrazine]dirhodium(II)". Acta Crystallographica Section C Crystal Structure Communications 49, № 12 (1993): 2084–86. http://dx.doi.org/10.1107/s0108270193005049.

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7

Semba, Kazuhiko, Ikuya Fujii, and Yoshiaki Nakao. "A PAlP Pincer Ligand Bearing a 2-Diphenylphosphinophenoxy Backbone." Inorganics 7, no. 12 (2019): 140. http://dx.doi.org/10.3390/inorganics7120140.

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A PAlP pincer ligand derived from 2-diphenylphosphino-6-isopropylphenol was synthesized. The Lewis acidity of the Al center of the ligand was evaluated with coordination of (O)PEt3. A zwitterionic rhodium-aluminum heterobimetallic complex bearing the PAlP ligand was synthesized through its complexation with [RhCl(nbd)]2. Moreover, reduction of the zwitterionic rhodium-aluminum complex with KC8 afforded heterobimetallic complexes bearing an X-type PAlP pincer ligand.

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8

Bheemanna, Hunsekatte G., Gayathri Virupaiah, and Nanje M. Gowda. "1 Studies on Ruthenium and Rhodium Complexes Containing 1,2- bis (N-Methylbenzimidazolyl)Benzene and Catalytic Transfer Hydrogenation." Mapana - Journal of Sciences 15, no. 2 (2016): 1–16. http://dx.doi.org/10.12723/mjs.37.1.

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Reactions of ruthenium(III) chloride and rhodium(III) halides with 1,2-bis(N-methylbenzimidazolyl)benzene (N-N) in stoicheiometric amounts in methanol produced binuclear complexes of the compositions [RuCl2(- Cl) (N-N)]2 and [RhX3(N-N)]2. nH2O ( n = 0, X = Br ; n = 1, X = Cl). [RhI3(N-N)]2 was prepared by stirring a mixture of rhodium trichloride with fifteen fold excess of sodium iodide and the N-heterocycle, N-N in methanol. Ruthenium chloride and rhodium halides in 2-methoxyethanol/alcohol reacted with N-N in presence of CO to produce complexes of the types [RuCl2(CO)2(N-N)], [Rh2Cl2(CO)2(

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9

Mejuto, Carmen, Beatriz Royo, Gregorio Guisado-Barrios, and Eduardo Peris. "Rhodium, iridium and nickel complexes with a 1,3,5-triphenylbenzene tris-MIC ligand. Study of the electronic properties and catalytic activities." Beilstein Journal of Organic Chemistry 11 (December 14, 2015): 2584–90. http://dx.doi.org/10.3762/bjoc.11.278.

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The coordination versatility of a 1,3,5-triphenylbenzene-tris-mesoionic carbene ligand is illustrated by the preparation of complexes with three different metals: rhodium, iridium and nickel. The rhodium and iridium complexes contained the [MCl(COD)] fragments, while the nickel compound contained [NiCpCl]. The preparation of the tris-MIC (MIC = mesoionic carbene) complex with three [IrCl(CO)2] fragments, allowed the estimation of the Tolman electronic parameter (TEP) for the ligand, which was compared with the TEP value for a related 1,3,5-triphenylbenzene-tris-NHC ligand. The electronic prope

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10

Hendry, P., and AM Sargeson. "Base Hydrolysis of Coordinated Trimethyl Phosphate." Australian Journal of Chemistry 39, no. 8 (1986): 1177. http://dx.doi.org/10.1071/ch9861177.

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The novel metal complex ions pentaammine ( trimethyl phosphate)- rhodium(III) and -iridium(III) have been synthesized and their hydrolysis in basic solution studied. The hydrolyses yield coordinated dimethyl phosphate ( dmp ), exclusively for the iridium complex, but accompanied by metal-oxygen bond rupture in the case of the rhodium complex. The reaction of the iridium complex proceeds with phosphorus-oxygen cleavage. The hydrolyses in the absence of nucleophiles other than hydroxide obey simple rate laws, v = k1[(NH3)5Ir( tmp )][OH-] for the iridium complex and v = (k1 + k2[OH-])[(NH3)5Rh( t

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11

Morimoto, Tsumoru, Chuang Wang, Hiroki Tanimoto, Levent Artok, and Kiyomi Kakiuchi. "Rhodium(I)-Catalyzed CO-Gas-Free Arylative Dual-Carbonylation of Alkynes with Arylboronic Acids via the Formyl C–H Activation of Formaldehyde." Synthesis 53, no. 18 (2021): 3372–82. http://dx.doi.org/10.1055/a-1468-8377.

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AbstractThe rhodium(I)-catalyzed reaction of alkynes with arylboronic acids in the presence of formaldehyde results in a CO-gas-free arylative dual-carbonylation to produce γ-butenolide derivatives. The simultaneous loading of phosphine-ligated and phosphine-free rhodium(I) complexes is required for efficient catalysis. The former complex catalyzes the abstraction of a carbonyl moiety from formaldehyde through the activation of its formyl C–H bond (decarbonylation) and the latter catalyzes the subsequent dual-incorporation of the resulting carbonyl unit (carbonylation). The use of larger amou

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12

Jiao, Yunzhe, William W. Brennessel, and William D. Jones. "Nitrile coordination to rhodium does not lead to C—H activation." Acta Crystallographica Section C Structural Chemistry 72, no. 11 (2016): 850–52. http://dx.doi.org/10.1107/s2053229616006859.

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Tris(pyrazolyl)borate complexes of rhodium are well known to activate C—H bonds. The reactive [Tp′Rh(PMe3)] fragment [Tp′ is tris(3,5-dimethylpyrazol-1-yl)hydroborate] is found to react with valeronitrile to give the κ1N-bound complex (pentanenitrile-κN)(trimethylphosphane-κP)[tris(3,5-dimethylimidazol-1-yl)hydroborato-κ2N2,N2′]rhodium(I), [Rh(C15H22BN6)(C5H9N)(C3H9P)]. In contrast to the widespread evidence for the reaction of this fragment with C—H bondsviaoxidative addition, no evidence for such a complex is observed.

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13

Kim, Jung Sun, José Carlos Almeida Barros, and Szulim Ber Zyngier. "Apoptosis Induced by Metal Complexes and Interaction with Dexamethasone." Metal-Based Drugs 8, no. 5 (2002): 249–52. http://dx.doi.org/10.1155/mbd.2002.249.

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Apoptosis induced by rhodium II amidate, rhodium II propionate, cisplatin and interactions with dexamethaxone were studied on some human leukemia cell lines Raji, Jurkat and U937. Apoptosis was studied by flow cytometry, agarose gel electrophoresis and morphological analysis. Rhodium II propionate induced apoptosis in all the three cell lines, Rhodium II amidate, in the lymphoid cell lines Jurkat and Raji, and cisplatin, only in the Jurkat, a T lymphoid cell line. It has also been observed that the addition of dexamethasone enhances the apoptosis index only in U937, a monocytic line with a glu

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14

Pošta, Martin, Jan Čermák, Pavel Vojtíšek, and Ivana Císařová. "Diphosphinoazine Rhodium(I) and Iridium(I) Complexes." Collection of Czechoslovak Chemical Communications 71, no. 2 (2006): 197–206. http://dx.doi.org/10.1135/cccc20060197.

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The first rhodium complexes of diphosphinoazines [{RhCl(1,2-η:5,6-η-CH=CHCH2CH2CH=CHCH2CH2)}2 {μ-R2PCH2C(But)=NN=C(But)CH2PR2] (R = Ph, Cy, Pri) were prepared by cleavage of the bridge in chloro(cycloocta-1,5-diene)rhodium(I) dimer, the analogous iridium(I) complexes were also prepared for the first time. The X-ray structures of isostructural rhodium and iridium complexes with bis(dicyclohexylphosphino)pinacoloneazine were determined. Diphosphinoazine ligands in the complexes remained in (Z,Z) configuration bridging two RhCl(C8H12) units.

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15

Pitman, C. L., O. N. L. Finster, and A. J. M. Miller. "Cyclopentadiene-mediated hydride transfer from rhodium complexes." Chemical Communications 52, no. 58 (2016): 9105–8. http://dx.doi.org/10.1039/c6cc00575f.

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Attempts to generate a proposed rhodium hydride catalytic intermediate instead resulted in isolation of (Cp*H)Rh(bpy)Cl (1), a pentamethylcyclopentadiene complex, formed by C–H bond-forming reductive elimination from the fleeting rhodium hydride.

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16

Čapka, Martin, Ulrich Schubert, Bernd Heinrich, and Jes Hjortkjaer. "Methanol Carbonylation Catalyzed by Rhodium Complexes Immobilized to Silica via Pyridine Group." Collection of Czechoslovak Chemical Communications 57, no. 12 (1992): 2615–21. http://dx.doi.org/10.1135/cccc19922615.

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2-(2-Trimethoxysilylethyl)pyridine (I) was used to prepare a series of rhodium carbonyl complexes bound to silica via pyridine group. The rhodium complex Rh2(CO)4Cl2 (Rh2) was used as a starting compound, and the immobilized complexes were prepared by the following routes: (i) by the reaction of untreated silica with a Rh complex formed from Rh2 and I, (ii) by reaction of Rh2 with a silica functionalized with I, (iii) by treatment of Rh2 with a polycondensate prepared by hydrolysis and condensation of a mixture of I and tetraethoxysilane, and (iv) by sol-gel processing of tetraethoxysilane wit

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17

Möller, Saskia, Hans-Joachim Drexler, and Detlef Heller. "Two precatalysts for application in propargylic CH activation." Acta Crystallographica Section C Structural Chemistry 75, no. 10 (2019): 1434–38. http://dx.doi.org/10.1107/s205322961901163x.

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The complexes {bis[(2-diphenylphosphanyl)phenyl] ether-κ2 P,P′}(η4-norbornadiene)rhodium(I) tetrafluoridoborate, [Rh(C7H8)(C36H28OP2)]BF4, and {bis[(2-diphenylphosphanyl)phenyl] ether-κ2 P,P′}[η4-(Z,Z)-cycloocta-1,5-diene]rhodium(I) tetrafluoridoborate dichloromethane monosolvate, [Rh(C8H12)(C36H28OP2)]BF4·CH2Cl2, are applied as precatalysts in redox-neutral atomic-economic propargylic CH activation [Lumbroso et al. (2013). Angew. Chem. Int. Ed. 52, 1890–1932]. In addition, the catalytically inactive pentacoordinated 18-electron complex {bis[(2-diphenylphosphanyl)phenyl] ether-κ2 P,P′}chlorido

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18

Espósito, Breno Pannia, Szulim Ber Zyngier, Aparecido Ribeiro de Souza, and Renato Najjar. "Rh2(CF3CONH)4: The First Biological Assays of a Rhodium (II) Amidate." Metal-Based Drugs 4, no. 6 (1997): 333–38. http://dx.doi.org/10.1155/mbd.1997.333.

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The rhodium (II) complexes Rh2(tfa)4.2(tfac) and Rh2(tfacam)4 (tfacam = CF3CONH-,tfa = CF3COO-,tfac = CF3CONH2) were synthesized and characterized by microanalysis and electronic and vibrational spectroscopies. Rh2(tfacam)4 was tested both in vitro (U937 and K562 human leukemia cells and Ehrlich ascitic tumor cells) and in vivo for cytostatic activity and lethal dose determination, respectively. This is the first rhodium tetra-amidate to have its biological activity evaluated. The LD50 value for Rh2(tfacam)4 is of the same order as that of cisplatin, and it was verified that the rhodium comple

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19

Malik, Rayees Ahmad, and Amit Chattree. "Synthesis of Fluorescent Rhodium(II) and Iridium(II) Complexes Promoted by 2,6-Bistetrazolate Pyridine Ligand." Asian Journal of Chemistry 32, no. 2 (2019): 451–57. http://dx.doi.org/10.14233/ajchem.2020.22396.

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Tridentate N-donor ligand 2,6-bistetrazolate pyridine (H2pytz) has been prepared from 2,6-pyridinedicarbonitrile and used for coordination with transition metals [M(pytz)2](NHEt3)2, (M =Rh, Ir). The structure of Rh and Ir complexes was determined by UV, FT-IR, 1H NMR, XRD and elemental analysis. Moreover, the absorption spectra of complexes were shifted towards the visible region (367.2 nm for Rh and 370.8 nm for Ir). The π-excessive, lone pair nitrogen donors and extended unsaturation of ligand triggers the visible fluorescence spectra upto 528.5 nm for rhodium complex and 557.5 nm for iridiu

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20

Meyer, Wolfgang H., Richard J. Bowen, and David G. Billing. "Tri(3-pyridyl)phosphine as Amphiphilic Ligand in the Rhodium-catalysed Hydroformylation of 1-Hexene." Zeitschrift für Naturforschung B 62, no. 3 (2007): 339–45. http://dx.doi.org/10.1515/znb-2007-0306.

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The molecular structure of carbonylchlorobis(tri(3-pyridyl)phosphine)rhodium, 1, has been determined by X-ray diffraction methods. The N-protonated trifluoromethanesulfonate (triflate) complex 3 was synthesised as a model compound for the extraction of a rhodium complex bearing amphiphilic ligands which can allow catalyst recycling in the hydroformylation of alkenes by using their distribution behavior in organic and aqueous solvents of different pH. The high water-solubility of the employed ligand renders the recycling method as only partly successful due to insufficient extraction from the w

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21

Ekengard, Erik, Kamlesh Kumar, Thibault Fogeron, et al. "Pentamethylcyclopentadienyl-rhodium and iridium complexes containing (N^N and N^O) bound chloroquine analogue ligands: synthesis, characterization and antimalarial properties." Dalton Transactions 45, no. 9 (2016): 3905–17. http://dx.doi.org/10.1039/c5dt03739e.

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22

Knör, Günther. "Investigations on the Redox-Photochromism of Rhodium Acetonitrile Complexes." Zeitschrift für Naturforschung B 58, no. 8 (2003): 741–44. http://dx.doi.org/10.1515/znb-2003-0804.

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The spectroscopic and photochromic properties of the dinuclear rhodium complex Rh2L10X4 (L = CH3 CN, X− = BF−4 ) have been studied in acetonitrile solution. A reversible wavelengthdependent photoredox disproportionation of the dark-equilibrated dirhodium(II) compound occurs upon irradiation with quantum yields of φ = 0.04 at 254 nm and φ = 0.60 at 436 nm, respectively. While the photolysis products show conspicuous aggregation phenomena at higher concentrations, a straightforward pseudo-bimolecular recombination of the metastable fragments following second-order kinetics was observed in 5 × 10

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23

Al-hamidi, Jehan, Abdulhamid Alsaygh, and Ibrahim Al-Najjar. "Hydridothiazole Rhodium Complexes as a Result of C-H Bond Activation in Iminothiazoles Chelating Ligands." Open Chemistry Journal 1, no. 1 (2014): 27–32. http://dx.doi.org/10.2174/1874842201401010027.

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A series of 20 Schiff base ligands derived from 2-aminothiazole and its derivatives and aryl aldehydes with either [RhCl(PPh3)3] or [Rh(µ-Cl)(COD)]2 in the presence of 4 equivalents of PPh3 lead to an Rh(III) cyclometallated complex and the imine ligand (C-H) bond has been added to the metal (C-M-H). The complexes were investigated by using I.R., 1H, 13C and 31P NMR Spectroscopic techniques. The signal of the (C-H) ligand was observed as trans to the nitrogen atom in the complex which is a donor ligand. Graphical Abstract: Total synthesis of hydridothiazole rhodium complexes possessing rhodium

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24

Naganawa, Yuki, Hisao Nishiyama, Jun-ichi Ito, and Mayu Kawagishi. "Asymmetric Desymmetrization of Substituted Cyclohexadienones by Rhodium-Catalyzed Conjugate Hydrosilylation and Theoretical Calculations of Its Mechanistic Aspects." Synthesis 28, no. 19 (2017): 4448–60. http://dx.doi.org/10.1055/s-0036-1590873.

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Asymmetric desymmetrization was demonstrated by means of transition-metal-catalyzed conjugate reduction with hydrosilanes as reductants. Chiral rhodium-bis(oxazolinyl)phenyl complexes [Rh(Phebox-R)] were found to be effective catalysts for conjugate hydrosilylation of differently γ,γ-disubstituted cyclohexadienones to provide the corresponding product with chiral quaternary centers. The mechanistic consideration was also performed by theoretical calculation. These attempts provided information about i) the initial activation of Rh(III) complex into Rh(I) species assisted by hydrosilanes, ii) t

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25

Sakate, Mika, Haruka Hosoda та Takayoshi Suzuki. "Crystal structures of bis[2-(pyridin-2-yl)phenyl-κ2N,C1]rhodium(III) complexes containing an acetonitrile or monodentate thyminate(1−) ligand". Acta Crystallographica Section E Crystallographic Communications 72, № 4 (2016): 543–47. http://dx.doi.org/10.1107/s2056989016004837.

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The crystal structures of bis[2-(pyridin-2-yl)phenyl]rhodium(III) complexes with the metal in an octahedral coordination containing chloride and acetonitrile ligands, namely (OC-6-42)-acetonitrilechloridobis[2-(pyridin-2-yl)phenyl-κ2N,C1]rhodium(III), [RhCl(C11H8N)2(CH3CN)] (1), thyminate(1−) and methanol, namely (OC-6-42)-methanol(5-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-ido-κN1)bis[2-(pyridin-2-yl)phenyl-κ2N,C1]rhodium(III), [Rh(C11H8N)2(C5H5N2O2)(CH3OH)]·CH3OH·0.5H2O (2), and thyminate(1−) and ethanol, namely (OC-6-42)-ethanol(5-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-ido-κN1

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26

Medici, Serenella, Massimiliano Peana, Alessio Pelucelli, and Maria Antonietta Zoroddu. "Rh(I) Complexes in Catalysis: A Five-Year Trend." Molecules 26, no. 9 (2021): 2553. http://dx.doi.org/10.3390/molecules26092553.

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Rhodium is one of the most used metals in catalysis both in laboratory reactions and industrial processes. Despite the extensive exploration on “classical” ligands carried out during the past decades in the field of rhodium-catalyzed reactions, such as phosphines, and other common types of ligands including N-heterocyclic carbenes, ferrocenes, cyclopentadienyl anion and pentamethylcyclopentadienyl derivatives, etc., there is still lively research activity on this topic, with considerable efforts being made toward the synthesis of new preformed rhodium catalysts that can be both efficient and s

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27

Nishihara, Yasushi, Yasuhiro Nishide, and Kohtaro Osakada. "Synthesis and reactivity of boryloxorhodium complexes. Relevance to intermolecular transmetalation from boron to rhodium in Rh-catalyzed reactions." Dalton Transactions 50, no. 10 (2021): 3610–15. http://dx.doi.org/10.1039/d1dt00440a.

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Transmetalation of the organic groups from boron to rhodium is a key step in the rhodium-catalyzed 1,4-addition of arylboronic acids. In this study, rhodium complexes bearing the Rh–O–B moieties were synthesized and characterized by X-ray crystallography.

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28

Ren, Li, Austin C. Chen, Andreas Decken, and Cathleen M. Crudden. "Chiral bidentate N-heterocyclic carbene complexes of Rh and Pd." Canadian Journal of Chemistry 82, no. 12 (2004): 1781–87. http://dx.doi.org/10.1139/v04-165.

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The synthesis of a new chiral, bidentate oxazoline/imidazolidene carbene precursor is described. This species is reacted with various metal salts in the presence of a base to generate rhodium and palladium complexes, which are characterized spectroscopically and crystallographically.Key words: chiral N-heterocyclic carbene, rhodium, palladium, oxazolidine, asymmetric catalysis.

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29

Jakimowicz, Piotr, Lucja Ostropolska, and Florian P. Pruchnik. "Interaction of [Rh2(O2CCH3)4(H2O)2] and [Rh2(O2CCH(OH)Ph)2(phen)2(H2O)2](O2C-CH(OH)Ph)2 With Sulfhydryl Compounds and Ceruloplasmin." Metal-Based Drugs 7, no. 4 (2000): 201–9. http://dx.doi.org/10.1155/mbd.2000.201.

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The interaction of binuclear rhodium(II) complexes [Rh2(OOCCH3)4(H2O)2], [Rh2{OOCCH(OH)Ph}2(phen)2(H2O)2] {OOCCH(OH)Ph}2, [Rh2(OOCCH3)2(bpy)2(H2O)2](OOCCH3)2 and [Rh2Cl2(OOCMe)2(bpy)2](3H2O) with ceruloplasmin, cysteine, glutathione and coenzyme A have been investigated using. UV-Vis and CD spectroscopies. The complexes containing phen or bpy at pH = 7.4 and 4.0 are readily reduced with sulfhydryl compounds, while rhodium(II) acetate is relatively stable in these conditions. Complex [Rh2{OOCCH(OH)Ph}2(phen)2(H2O)2] strongly changes structure of ceruloplasmin leading to the decrease of of α-hel

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30

Albayer, Mohammad, and Jason L. Dutton. "Reactions of Trivalent Iodine Reagents with Classic Iridium and Rhodium Complexes." Australian Journal of Chemistry 70, no. 11 (2017): 1180. http://dx.doi.org/10.1071/ch17173.

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In this work, the reactions of iodine(iii) reagents (PhI(L)2: L = pyridine, acetate (OAc−), triflate (OTf−)) with iridium(i) and rhodium(i) complexes (Vaskas’s compound, Wilkinson’s catalyst, and bis[bis(diphenylphosphino)ethane]rhodium(i) triflate) are reported. In all cases, the reactions resulted in two-electron oxidation of the metal complexes. Mixtures of products were observed in the reactions of Iiii reagents with Vaska’s compound and Wilkinson’s catalyst via ligand exchange and anion scrambling. In the case of reacting Iiii reagents with chelating ligand-containing bis[bis(diphenylphos

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31

Fandos, Rosa, Antonio Otero, Ana Rodríguez, and Pilar Terreros. "Syntheses of New Titanium(IV) and Rhodium(I) Guanidinido Complexes." Collection of Czechoslovak Chemical Communications 72, no. 4 (2007): 579–88. http://dx.doi.org/10.1135/cccc20070579.

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The new titanium guanidinido complexes [TiCp*Me2{(PhN)2CNH2}] (1), and [TiCp*Cl2- {(PhN)2CNH2}] (2) (Cp* = η5-C5Me5) have been synthesized. The reaction of complex 1 with [Rh(μ-OH)(cod)]2 affords the rhodium guanidinido complex [Rh{(PhNH)(PhN)CNH}(cod)]2 (3). The molecular structures of complexes 1 and 3 were studied by X-ray diffraction methods. Complex 3 can also be prepared by reaction of [Rh(μ-OH)(cod)]2 with N,N'-diphenylguanidine.

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32

Dauchy, Maxime, Michel Ferreira, Jérôme Leblond та ін. "New water-soluble Schiff base ligands based on β-cyclodextrin for aqueous biphasic hydroformylation reaction". Pure and Applied Chemistry 90, № 5 (2018): 845–55. http://dx.doi.org/10.1515/pac-2017-1205.

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Abstract The synthesis of water-soluble rhodium(I) salicylaldiminato and salicylhydrazonic complexes has been achieved employing two preparative routes. Schiff base condensation between 6A-deoxy-6A-amino-β-CD or 6A-deoxy-6A-hydrazino-β-CD and 5-sodiosulfonato-2-hydroxybenzaldehyde (sulfonated salicylaldehyde) (1) or 5-sodiosulfonato-3-tert-butyl-2-hydroxybenzaldehyde (sulfonated tBu-salicylaldehyde) (2) led to the formation of the corresponding imine or hydrazone ligands (3, 4, 5 and 6). Reaction of [Rh(COD)2+BF4−] with these new ligands in an alkaline solution formed the corresponding rhodium

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33

Ma, Dik-Lung, Modi Wang, Zhifeng Mao, Chao Yang, Chan-Tat Ng, and Chung-Hang Leung. "Rhodium complexes as therapeutic agents." Dalton Transactions 45, no. 7 (2016): 2762–71. http://dx.doi.org/10.1039/c5dt04338g.

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34

Vogels, Christopher M., Andreas Decken, and Stephen A. Westcott. "Rhodium(I) acetylacetonato complexes containing phosphinoalkynes as catalysts for the hydroboration of vinylarenes." Canadian Journal of Chemistry 84, no. 2 (2006): 146–53. http://dx.doi.org/10.1139/v05-242.

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Three novel rhodium(I) acetylacetonato (acac) complexes bearing phosphinoalkynes (Ph2PC≡C-t-Bu, Ph2PC≡CPPh2, and Ph2PC≡CC≡CPPh2) have been prepared and characterized fully. Addition of B2cat3 (cat = 1,2-O2C6H4) to Rh(acac)(Ph2PC≡C-t-Bu)2 (1a) led to zwitterionic Rh(η6-catBcat)(Ph2PC≡C-t-Bu)2 (2a), the first example of this type of compound to contain monodentate phosphine ligands. All new rhodium complexes have been investigated for their ability to catalyse the hydroboration of vinylarenes.Key words: catalysis, hydroboration, phosphinoalkynes, regioselectivity, rhodium.

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35

Reiss, Jiří, and Jiří Hetflejš. "Rhodium-diphosphine tosylate complexes as hydrogenation catalysts." Collection of Czechoslovak Chemical Communications 51, no. 2 (1986): 340–46. http://dx.doi.org/10.1135/cccc19860340.

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Novel rhodium-diphosphine tosylate complexes of the type [Rh(COD)L2]+ (O3SC6H4CH3-p)- (L2 = diphos, prophos, buphos, (-)-DIOP) have been prepared in high yields (87-92%) by the displacement of acac ligand from Rh(COD)(acac)by p-toluenesulphonic acid in the presence of L2. The complexes were found to be efficient hydrogenation catalysts comparable in activity to know cationic rhodium complexes. Some differences in the catalytic behaviour of both systems are reported, using hydrogenation of 1-octene and Z-α-acetamidocinnamic acid as model reactions.

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36

Blakemore, James D., Emilia S. Hernandez, Wesley Sattler, et al. "Pentamethylcyclopentadienyl rhodium complexes." Polyhedron 84 (December 2014): 14–18. http://dx.doi.org/10.1016/j.poly.2014.05.022.

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37

Simkhovich, Liliya, Israel Goldberg, and Zeev Gross. "The effects of bulky ortho-aryl substituents in corroles, tested by X-ray crystallography of the rhodium complexes and catalysis thereby." Journal of Porphyrins and Phthalocyanines 06, no. 06 (2002): 439–44. http://dx.doi.org/10.1142/s1088424602000543.

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In the present publication we report on the preparation and spectroscopic features of a penta-coordinate rhodium(III) complex of corrole with bulky ortho-phenyl substituents at the meso positions, Rh ( tdcc )( PPh 3)[ tdcc = tris (2,6- dichlorophenyl ) corrole ]. Addition of pyridine to Rh ( tdcc )( PPh 3), as well as to the closely related complex of tris(pentafluorophenyl)corrole [ Rh ( tpfc )( PPh 3)] reported earlier, leads to hexa-coordinated rhodium complexes with pyridine and PPh 3 occupying the axial positions. The structures of these two compounds were investigated by NMR and X-ray cr

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38

Basickes, Leah, Andrew G. Bunn, and Bradford B. Wayland. "Equilibrium thermodynamic studies for the formation of 1:1 complexes of CO and ethene with a rhodium(II) porphyrin metallo-radical." Canadian Journal of Chemistry 79, no. 5-6 (2001): 854–56. http://dx.doi.org/10.1139/v01-052.

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Tetra(2,4,6 triisopropropyl phenyl)porphyrinatorhodium(II) ((TTiPP)RhII·1) is a persistent metal-centered radical with the odd electron in the rhodium(II) dz2 orbital. (TTiPP)RhII· forms 1:1 complexes with CO and CH2CH2 where the porphyrin ligand steric properties inhibit further reactions of the one-electron activated substrates. 1H NMR paramagnetic shifts at a series of temperatures are used in evaluating the thermodynamics for CO complex formation with 1 to form [(TTiPP)RhII(CO)]·2 (ΔH° = -5.5 ± 0.5 kcal mol-1; ΔS° = -9 ± 1 cal K-1 mol-1). Related 1H NMR studies show that the bonding of 1 w

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39

Bickert, Peter, and Klaus Hafner. "Pentamethylcyclopentadienyl rhodium complexes of dihydro-s-indacenophanes: Transannular interactions." Collection of Czechoslovak Chemical Communications 53, no. 10 (1988): 2418–28. http://dx.doi.org/10.1135/cccc19882418.

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Transannular interactions in pentamethylcyclopentadienyl rhodium complexes (Me5C5Rh) of 18,22(18,20)-dihydro[2](4,4')biphenylo[2](2,6)-s-indacenophane (IV) and 12,16(12,18)-dihydro[2]pacacyclo[2](4,8)-s-indacenophane (IX) were investigated. The capability of a Me5C5Rh group to reduce electron density in both decks of these phanes was established. The deprotonation product VII of 18a,19,19a,22a,23,23a-η6-(18,22(18,20)-dihydro[2](4,4')biphenylo[2](2,6)-s-indacenophane-η5-(pentamethylcyclopentadienyl)rhodium(III) bis(hexafluoroantimonate) (V) was isolated as the first representative of a class of

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40

Thompson, Samuel J., Marshall R. Brennan, Siu Yin Lee, and Guangbin Dong. "Synthesis and applications of rhodium porphyrin complexes." Chemical Society Reviews 47, no. 3 (2018): 929–81. http://dx.doi.org/10.1039/c7cs00582b.

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41

Galding, M. R., A. V. Virovets, I. V. Kazakov, M. Scheer, S. N. Smirnov, and A. Y. Timoshkin. "Diminished electron density in the Vaska-type rhodium(I) complextrans-[Rh(NCBH3)(CO)(PPh3)2]." Acta Crystallographica Section C Structural Chemistry 72, no. 7 (2016): 514–17. http://dx.doi.org/10.1107/s2053229616008536.

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Vaska-type complexes,i.e. trans-[RhX(CO)(PPh3)2] (Xis a halogen or pseudohalogen), undergo a range of reactions and exhibit considerable catalytic activity. The electron density on the RhIatom in these complexes plays an important role in their reactivity. Many cyanotrihydridoborate (BH3CN−) complexes of Group 6–8 transition metals have been synthesized and structurally characterized, an exception being the rhodium(I) complex. Carbonyl(cyanotrihydridoborato-κN)bis(triphenylphosphine-κP)rhodium(I), [Rh(NCBH3)(CO)(C18H15P)2], was prepared by the metathesis reaction of sodium cyanotrihydridoborat

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42

Hanf, Schirin, Luis Alvarado Rupflin, Roger Gläser, and Stephan Schunk. "Current State of the Art of the Solid Rh-Based Catalyzed Hydroformylation of Short-Chain Olefins." Catalysts 10, no. 5 (2020): 510. http://dx.doi.org/10.3390/catal10050510.

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The hydroformylation of olefins is one of the most important homogeneously catalyzed processes in industry to produce bulk chemicals. Despite the high catalytic activities and selectivity’s using rhodium-based homogeneous hydroformylation catalysts, catalyst recovery and recycling from the reaction mixture remain a challenging topic on a process level. Therefore, technical solutions involving alternate approaches with heterogeneous catalysts for the conversion of olefins into aldehydes have been considered and research activities have addressed the synthesis and development of heterogeneous rh

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43

Song, Liangliang, Lei Gong, and Eric Meggers. "Asymmetric dual catalysis via fragmentation of a single rhodium precursor complex." Chemical Communications 52, no. 49 (2016): 7699–702. http://dx.doi.org/10.1039/c6cc03157a.

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A strategy for dual transition metal catalysis and organocatalysis is reported via disintegration of a single rhodium complex. Conveniently, the chiral-at-metal rhodium precatalyst can be synthesized in just two steps starting from rhodium trichloride without the need for any chromatography.

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44

Al-Salim, T., J. S. Hadi, E. A. Al-Nasir, and M. A. Hassen. "The Transfer Hydrogenation Reactions Catalyzed by Rhodium Schiff Base Complexes." Journal of Scientific Research 2, no. 3 (2010): 501. http://dx.doi.org/10.3329/jsr.v2i3.4341.

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Three new Schiff base rhodium (III) complexes, derived from three ligands, L1, L2 and L3 have been prepared and characterized by IR, 1HNMR, mass spectra and the elemental analysis. These complexes have shown efficient catalytic activity in the transfer hydrogenation of wide variety ketones to the corresponding alcohols in formic acid/triethylamine solution under mild reaction conditions. Depending on the ketone, the percentage of conversion for RhL1 have been found to be (51-92%) compared to RhL2 which had a yield of (42-92%) while for RhL3 (71-94%), within time range of 0.5-12 hrs. Keywords:

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45

Fu, Li-Jie, Bo-Hsun An, Chih-Hsuan Chou, Chi-Min Chen, and Ching Tat To. "Base-promoted perfluoroalkylation of rhodium(iii) porphyrin complexes." Dalton Transactions 50, no. 28 (2021): 9949–57. http://dx.doi.org/10.1039/d1dt01118a.

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46

Richers, Casseday P., Sven Roediger, Victor Laserna, and John F. Hartwig. "Effects of ligands on the migratory insertion of alkenes into rhodium–oxygen bonds." Chemical Science 11, no. 38 (2020): 10449–56. http://dx.doi.org/10.1039/d0sc04402d.

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A series of diphosphine-ligated rhodium(i) alkoxo alkene complexes is reported and the migratory insertion of the alkene moiety into the rhodium–oxygen bond in these complexes was studied, revealing the effects of the ligand on the insertion process.

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47

Pell, Christopher J., Wei-Chun Shih, Sylvain Gatard, and Oleg V. Ozerov. "Formation of (PNP)Rh complexes containing covalent rhodium–zinc bonds in studies of potential Rh-catalysed Negishi coupling." Chemical Communications 53, no. 48 (2017): 6456–59. http://dx.doi.org/10.1039/c7cc02707a.

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48

Janecki, Tomasz, Shu Shi, Piotr Kaszynski, and Josef Michl. "[n]Staffanes with Terminal Nitrile and Isonitrile Functionalities and Their Metal Complexes." Collection of Czechoslovak Chemical Communications 58, no. 1 (1993): 89–104. http://dx.doi.org/10.1135/cccc19930089.

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The synthesis of several bridgehead nitrile and isonitrile derivatives of the first two [n]staffanes, n = 1 and 2, is reported. Both isonitriles were converted into pentacarbonylmolybdenum complexes. [2]Staffane-3-carbonitrile was converted to a complex with rhodium(II) acetate, which was characterized by a single crystal X-ray analysis.

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49

Opstal, Tom, Jiří Zedník, Jan Sedláček, Jan Svoboda, Jiří Vohlídal, and Francis Verpoort. "Atom Transfer Radical Polymerization of Styrene and Methyl Methacrylate Induced by RhI(cycloocta-1,5-diene) Complexes." Collection of Czechoslovak Chemical Communications 67, no. 12 (2002): 1858–71. http://dx.doi.org/10.1135/cccc20021858.

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Rh(I)(diene) complexes, di(μ-docosanoato)bis[(η2:η2-cycloocta-1,5-diene)rhodium(I)] (1) and bis(μ-4-methylphenolato)bis[(η2:η2-cycloocta-1,5-diene)rhodium(I)] (2) are introduced as a new class of catalysts for the atom transfer radical polymerization (ATRP) of vinyl monomers and provide new example of an involvement of rhodium compounds in radical reactions. Single complexes 1 and 2 promote a controlled radical polymerization of methyl methacrylate and styrene affording a medium to good yield of high-molecular-weight polymers with polydispersity index, Mw/Mn, values ranging from 1.45 to 1.65.

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50

Sparkes, Hazel A., Simon K. Brayshaw, Andrew S. Weller, and Judith A. K. Howard. "[Rh(C7H8)(PPh3)Cl]: an experimental charge-density study." Acta Crystallographica Section B Structural Science 64, no. 5 (2008): 550–57. http://dx.doi.org/10.1107/s0108768108026384.

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In order to gain a deeper understanding into the bonding situation in rhodium complexes containing rhodium–carbon interactions, the experimental charge-density analysis for [Rh(C7H8)(PPh3)Cl] (1) is reported. Accurate, high-resolution (sin θ/λ = 1.08 Å−1), single-crystal data were obtained at 100 K. The results from the investigation were interesting in relation to the interactions between the rhodium metal centre and the norbornadiene fragment and illustrate the importance of such analyses in studying bonding in organometallic complexes.

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