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Journal articles on the topic 'Coordinat polydente'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Andjelkovic, Katarina, Gordana Jakovljevic, Mario Zlatovic, et al. "Synthesis and characterization of zinc(II), palladium(II) and platinum(II) complexes with 2’-[1-(2-pyridinyl)- ethylidene]oxamohydrazide: The crystal structure of biss2'-[1-(2-pyridinyl)ethylidene]oxa." Journal of the Serbian Chemical Society 69, no. 8-9 (2004): 651–60. http://dx.doi.org/10.2298/jsc0409651a.

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Complexes of Zn(II), Pd(II) and Pt(II) with 2?-[1-(2-pyridinyl)ethylidene ]oxamohydrazide (Hapsox) were synthesized and their structures were determined. All the complexes are of a neutral type with two apsox ligands coordinated to Zn(II) and one apsox ligand coordinated to Pd(II) or Pt(II). In each case, the polydentate was coordinated via pyridine and hydrazone nitrogens and ?-oxyazine oxygen, forming an octahedral geometry around Zn(II), and a square planar one around Pd(II) and Pt(II). The structure determination was performed by IR, 1H-NMR and 13C-NMR spectroscopy, and for the Zn(II) comp

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2

Avecilla, Fernando, Pedro Adão, Isabel Correia, and João Costa Pessoa. "Influence of polydentate ligands in the structure of dinuclear vanadium compounds." Pure and Applied Chemistry 81, no. 7 (2009): 1297–311. http://dx.doi.org/10.1351/pac-con-08-09-16.

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A review discussing general structural features of oxygen-bridged dinuclear vanadium(IV and/or V) complexes is presented, covering those that have been characterized by single-crystal X-ray diffraction. Many of these compounds contain functional Schiff bases or amines as ligands, this work illustrating the high propensity of the V center to increase its coordination number via dimerization of two tetra- or penta-coordinate monomers, if the steric and electronic control exerted by the ligands allows it. We also report the synthesis and characterization by single-crystal X-ray diffraction of two

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3

Mautner, Franz A., Roland C. Fischer, Ana Torvisco, et al. "Five-Coordinated Geometries from Molecular Structures to Solutions in Copper(II) Complexes Generated from Polydentate-N-Donor Ligands and Pseudohalides." Molecules 25, no. 15 (2020): 3376. http://dx.doi.org/10.3390/molecules25153376.

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A novel series of mononuclear five-coordinated pseudohalido-Cu(II) complexes displaying distorted square bipyramidal: [Cu(L1)(NCS)2] (1), [Cu(L2)(NCS)2] (2) and [Cu(L3)(NCS)]ClO4 (5) as well as distorted trigonal bipyramidal: [Cu(isp3tren)(N3)]ClO4 (3), [Cu(isp3tren)(dca)]ClO4 (4) and [Cu(tedmpza)(dca)]ClO4·0.67H2O (6) geometries had been synthesized and structurally characterized using X-ray single crystal crystallography, elemental microanalysis, IR and UV-vis spectroscopy, and molar conductivity measurements. Different N-donor amine skeletons including tridentate: L1 = [(2-pyridyl)-2-ethyl)

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4

Shihada, Abdel-Fattah, Frank Weller, and Werner Massa. "Between MOFs and molecules: organolead(IV) compounds with chain structures." Acta Crystallographica Section C Structural Chemistry 74, no. 5 (2018): 523–28. http://dx.doi.org/10.1107/s2053229618004850.

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Organolead compounds are of interest mainly as catalysts and organolead halides have proved to be very efficient materials for solar cells. Two organolead(IV) dimethylarsinates, namely catena-poly[[triphenyllead(IV)]-μ-chlorido-[triphenyllead(IV)]-μ-dimethylarsinato-κ2 O:O′], [Pb2(C6H5)6(C2H6AsO2)Cl] n or [(Ph3Pb)2Cl(O2AsMe2)], (1), and poly[chlorido(μ3-dimethylarsinato-κ3 O:O,O′:O′)diphenyllead(IV)], [Pb(C6H5)2(C2H6AsO2)Cl] n or [(Ph2ClPb)(O2AsMe2)], (2), together with the triphenyllead(IV) diphenylphosphinate catena-poly[[triphenyllead(IV)]-μ-diphenylphosphinato-κ2 O:O′], [Pb(C6H5)3(C12H10O2

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5

Rybak-Akimova, Elena V., Alexander Y. Nazarenko, Lisa Chen, et al. "Synthesis, characterization, redox properties, and representative X-ray structures of four- and five-coordinate copper(II) complexes with polydentate aminopyridine ligands." Inorganica Chimica Acta 324, no. 1-2 (2001): 1–15. http://dx.doi.org/10.1016/s0020-1693(01)00495-9.

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6

Coulter, Kevin R., Alexander McAuley, and Steven Rettig. "Synthesis and characterization of the pentadentate macrobicyclic ligand, 14-thia-1,4,8,11-tetraazabicyclo[9.5.3]nonadecane (L1) and its nickel(II) complexes. X-ray crystal structure of [Ni(L1)(ClO4)](ClO4)·2[Ni(L1)(OH2)](ClO4)2·6H2O." Canadian Journal of Chemistry 79, no. 5-6 (2001): 930–37. http://dx.doi.org/10.1139/v00-207.

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The pentadentate macrobicycle,14-thia-1,4,8,11-tetraazabicyclo[9.5.3]nonadecane (L1), has been synthesized by high dilution cyclization of 1-thia-4,8-diazacyclododecane ([10]aneN2S) (2) with N,N'-bis(α-chloro acetamido) propane (3) and subsequent reduction of the di-oxo intermediate. The structure of the [Ni(L1)(ClO4)](ClO4)·2[Ni(L1)(OH2)](ClO4)2·6H2O complex (monoclinic, P21/c, a = 13.9261(4) Å, b = 30.279(2) Å, c = 17.1248(3) Å, β = 94.5065(3)°) at R = 0.039 (Rw = 0.034) for 911 parameters using 18 266 reflections with I > 3σI has been determined. The ligand adopts a trans-III configurati

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7

Boere, Rene T., W. Mark Brown, Douglas W. Stephan, and Christopher J. Willis. "Coordination modes of polydentate ligands. 3. Five-coordinate complexes of cobalt(2+), copper(2+), and nickel(2+) containing a tridentate thioether-alkoxy ligand." Inorganic Chemistry 24, no. 4 (1985): 593–97. http://dx.doi.org/10.1021/ic00198a032.

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8

Solihah Khaidir, Siti, Hadariah Bahron, Amalina Mohd Tajuddin, Kalavathy Ramasamy, and Siong Meng Lim. "High Nuclearity Cu(II) and Co(II) complexes of Schiff Base Derived from o-vanillin with substituted m-phenylenediamine." International Journal of Engineering & Technology 7, no. 3.11 (2018): 72. http://dx.doi.org/10.14419/ijet.v7i3.11.15933.

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In the present work, a polydentate Schiff base ligand (SB) was synthesized via condensation reaction between o-vanillin and Cl-m-phenylenediamine. Dinuclear complexes of Co(II) and Cu(II) were prepared by conventional method with SB:metal ratio of 1:1 whereas tetranuclear complexes were obtained via microwave-assisted synthesis with SB:metal ratio of 1:2. Characterization was carried out through elemental analysis (C,H,N), molar conductivity, magnetic susceptibility, Fourier Transform Infrared (FTIR), and Nuclear Magnetic Resonance (NMR) spectroscopy. The experimental data indicated that the m

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9

Mikhalyova, Elena A., Swiatoslaw Trofimenko, Matthias Zeller, Anthony W. Addison, and Vitaly V. Pavlishchuk. "New homodinuclear tris(3-alkylpyrazolyl)borate complexes of CoIIand NiIIwith a tetraacetylethane dianion as a bridging ligand." Acta Crystallographica Section C Structural Chemistry 72, no. 11 (2016): 777–85. http://dx.doi.org/10.1107/s205322961601398x.

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Polynuclear complexes and coordination polymers of 3dmetals have attracted significant interest evoked by a number of their unique properties. One of the most common approaches to the directed synthesis of coordination polymers is the linking of pre-prepared discrete coordination units by polydentate ligands. The formation of polynuclear complexes is usually a spontaneous process and precise prediction of the products of such reactions is virtually impossible in most cases. Tris(pyrazolyl)borates (Tp) act as tripodal `capping' ligands which form stable complexes with 3dmetal ions. In such 1:1

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10

MacBeth, Cora E., Seth B. Harkins, and Jonas C. Peters. "Synthesis and characterization of cationic iron complexes supported by the neutral ligands NPi-Pr3, NArPi-Pr3, and NSt-Bu3." Canadian Journal of Chemistry 83, no. 4 (2005): 332–40. http://dx.doi.org/10.1139/v05-017.

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This paper compares the local geometries, spin states, and redox properties of a series of iron complexes supported by neutral, tetradentate NP3 (tris(phosphine)amine) and NS3 (tris(thioether)amine) ligands. Our consideration of an Fe-mediated N2 fixation scheme similar to that proposed by Chatt for molybdenum motivates our interest in systems of these types. This report specifically describes the synthesis and characterization of cationic Fe(II) chloride complexes supported by the neutral ligands NPi-Pr3 (NPi-Pr3 = [N(CH2CH2P-i-Pr2)3]), NArPi-Pr3 (NArPi-Pr3 = [N(2-diisopropylphosphine-4-methy

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11

Preuß, Andrea, Marcus Korb, Tobias Rüffer та ін. "A β-ketoiminato palladium(II) complex for palladium deposition". Zeitschrift für Naturforschung B 74, № 11-12 (2019): 901–12. http://dx.doi.org/10.1515/znb-2019-0172.

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AbstractThe ¦-ketoiminato complex [Pd(OAc)L] (3) can be synthesized by the reaction of bis(benzoylacetone)diethylenetriamine (1, = LH) with [Pd(OAc)2] (2). The structure of 3 in the solid state has been determined by single X-ray diffraction analysis. Complex 3 crystallizes as a dimer (32), which is formed by hydrogen bonds between NH and OOAc functionalities of two adjacent ligands. Each of the Pd atoms is complexed by one ON2 donor unit of the polydentate ligand L− and an acetate group. Pd–Pd interactions and hydrogen bond formation between a NH and the C=O acetate moiety lead to a [4 + 2] c

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12

Shaikh, Shahid N., and Jon Zubieta. "Chemistry of polydentate thiolate-amine complexes of molybdenum with organosubstituted hydrazines. Synthesis and structural characterization of the six-coordinate Bis-phenyldiazenido Complex, [Mo(N2C6H5)2{(SCH2CH2)2NCH2CH2-N(CH3)2}], and of the Five-coordinate Hydrazido(2—) complex, [MoO(NNMePh){(SCH2CH2)2NCH2-CH2N(CH3)2}]." Inorganica Chimica Acta 115, no. 1 (1986): L19—L21. http://dx.doi.org/10.1016/s0020-1693(00)87687-2.

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13

Borovyk, Polina, Mariia Litvinchuk, Anton Bentya, Svitlana Orysyk, Yurii Zborovskiy, and Nataliia Slyvka. "Zn(II) and Ag(I) complexes of N-allythioamides of pyrimidinyl (cyclohexenyl) carboxylic acids and products their proton- and iodocyclization." Ukrainian Chemistry Journal 85, no. 3 (2019): 3–19. http://dx.doi.org/10.33609/0041-6045.85.3.2019.3-19.

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The possibility of using N-allylcarbothioamide derivatives as well as products of their iodine- and proton-initiated electrophilic heterocyclizations as chelating agents in complexation reactions with Zn(II) and Ag(I) ions is shown. Processing of the obtained experimental data showed that N-allythioamides of pyrimidinyl (cyclohexenyl) carboxylic acids H2L1 – H2L3 and their proton- and iodo-cyclization products HL4, HL5 containing four nucleophilic reaction centers (two oxygen atoms of the carbonyl and hydroxyl groups and N-, S-carbothioamide groups or N-atoms of the dihydrothiazole moiety) are

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14

Borovyk, Polina, Mariia Litvinchuk, Anton Bentya, Svitlana Orysyk, Yurii Zborovskiy, and Nataliia Slyvka. "Zn(II) and Ag(I) complexes of N-allythioamides of pyrimidinyl (cyclohexenyl) carboxylic acids and products their proton- and iodocyclization." Ukrainian Chemistry Journal 85, no. 3 (2019): 3–19. http://dx.doi.org/10.33609/6045.85.3.2019.3-19.

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The possibility of using N-allylcarbothioamide derivatives as well as products of their iodine- and proton-initiated electrophilic heterocyclizations as chelating agents in complexation reactions with Zn(II) and Ag(I) ions is shown. Processing of the obtained experimental data showed that N-allythioamides of pyrimidinyl (cyclohexenyl) carboxylic acids H2L1 – H2L3 and their proton- and iodo-cyclization products HL4, HL5 containing four nucleophilic reaction centers (two oxygen atoms of the carbonyl and hydroxyl groups and N-, S-carbothioamide groups or N-atoms of the dihydrothiazole moiety) are

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15

Benkanoun, Aouaouche, Fadéla Balegroune, Achoura Guehria-Laidoudi, Slimane Dahaoui, and Claude Lecomte. "Comparative study between two new phthalate/imidazole Cobalt complexes." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C638. http://dx.doi.org/10.1107/s2053273314093619.

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The main strategy for preparing novel multifunctional materials is based on self-assembly method which employs polydentate organic ligands containing N- or O-donor as building blocks. In this context, those ligands like imidazole or carboxylate groups are of special interest due to their good coordination ability and diverse coordination modes [1]. As a part of our investigations of extended structures with mixed ligands, new complexes [Co(Hipht)2(Im)2(H2O)2] and [Co(Tpht)(Im)3(H2O)2].H2O were obtained by direct method, then characterized by IR spectroscopy, TG/ATD and X-ray crystallography. I

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16

Yilmaz, Ismail, Ahmet Kilic, and Hacer Yalcinkaya. "Synthesis, characterization, fluorescence and redox features of new vic-dioxime ligand bearing pyrene and its metal complexes." Chemical Papers 62, no. 4 (2008). http://dx.doi.org/10.2478/s11696-008-0046-7.

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AbstractA new vic-dioxime ligand, N,N′-bis(aminopyreneglyoxime) (LH2), and its copper(II), nickel(II) and cobalt(II) metal complexes were synthesized and characterized by elemental analyses, IR, UVVIS and 1H and 13C NMR spectra (for the ligand). Mononuclear complexes were synthesized by a reaction of ligand (LH2) and salts of Co(II), Ni(II), and Cu(II) in ethanol. The complexes have the metal-ligand ratio of 1: 2 and metals are coordinated by N,N′ atoms of vicinal dioximes. The ligand acts in a polydentate fashion bending through nitrogen atoms in the presence of a base, as do most vic-dioxime

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17

BOERE, R. T., W. M. BROWN, D. W. STEPHAN, and C. J. WILLIS. "ChemInform Abstract: COORDINATION MODES OF POLYDENTATE LIGANDS. 3. FIVE-COORDINATE COMPLEXES OF COBALT(2+), COPPER(2+), AND NICKEL(2+) CONTAINING A TRIDENTATE THIOETHER-ALKOXY LIGAND." Chemischer Informationsdienst 16, no. 29 (1985). http://dx.doi.org/10.1002/chin.198529311.

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18

SHAIKH, S. N., and J. ZUBIETA. "ChemInform Abstract: Polydentate Thiolate-Amine Complexes of Molybdenum with Organosubstituted Hydrazines. Synthesis and Structural Characterization of the Six-coordinate Bis-phenyldiazenido Complex, [Mo(N2C6H5)2{(SCH2CH2)2NCH2CH2N(CH3)2}], and of the Fiv." Chemischer Informationsdienst 17, no. 37 (1986). http://dx.doi.org/10.1002/chin.198637262.

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