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Oleg N Antzutkin - One of the best experts on this subject based on the ideXlab platform.
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supramolecular self organisation and conformational isomerism of a binuclear o o dipropyl dithiophosphate gold i complex au2 s2p oc3h7 2 2 synthesis 13c and 31p cp MAS NMR Spectroscopy single crystal x ray diffraction study and thermal behaviour
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2015Co-Authors: T. A. Rodina, E. V. Korneeva, Oleg N Antzutkin, A V IvanovAbstract:Crystalline one-dimensional polymeric catena-poly[bis(μ2-O,O'-dipropyldithiophosphato-S,S')digold(I)] (Au-Au) (1) was prepared and studied using (13)C and (31)P CP/MAS NMR Spectroscopy and single-crystal X-ray diffraction. To elucidate the structural function of Dtph ligands in crystalline gold(I) O,O'-dipropyl dithiophosphate, the chemical shift anisotropy parameters (δaniso and η) were calculated from spinning sideband manifolds in (31)P MAS NMR spectra. A novel structure of the gold(I) compound comprises two isomeric, non-centrosymmetric binuclear molecules of [Au2{S2P(OC3H7)2}2] (isomers 'A' and 'B'), whose four Dtph groups display structural inequivalence. In each isomeric binuclear molecule of 1, a pair of μ2-bridging dipropyl Dtph ligands almost symmetrically links two neighbouring gold atoms, forming an extensive eight-membered metallocycle [Au2S4P2], while the intramolecular aurophilic Au⋯Au bond additionally stabilises this central cyclic moiety. At the supramolecular level of complex 1, intermolecular aurophilic Au⋯Au bonds yield almost linear infinite polymeric chains (⋯'A'⋯'B'⋯'A'⋯'B'⋯)n. The thermal behaviour of this compound was studied by the simultaneous thermal analysis (STA) technique (a combination of TG and DSC) under an argon atmosphere.
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a pyridine adduct of bis di iso butyldithiocarbamato s s cadmium ii multinuclear 13c 15n 113cd cp MAS NMR Spectroscopy crystal and molecular structure and thermal behaviour
Inorganica Chimica Acta, 2011Co-Authors: T. A. Rodina, A V Ivanov, A V Gerasimenko, M A Ivanov, A S Zaeva, Tatyana S Philippova, Oleg N AntzutkinAbstract:Abstract Crystalline bis(N,N-di-iso-butyldithiocarbamato-S,S′)(pyridine)cadmium(II) – adduct 1 was prepared and studied by means of multinuclear 13C, 15N, 113Cd CP/MAS NMR Spectroscopy, single-crystal X-ray diffraction and simultaneous thermal analysis (STA). In molecular structure 1, the cadmium atom coordinates with four sulphur atoms and one nitrogen atom of pyridine, forming a coordination polyhedron [CdS4N], whose geometry is an almost ideal tetragonal pyramidal (C4v). The coordinated py molecule is in the apical position, while two structurally non-equivalent di-iso-butyldithiocarbamate ligands, playing the same terminal S,S′-chelating function, define the basal plane. To characterise additionally the structural state of the cadmium atom in this fivefold coordination, 113Cd chemical shift anisotropy (CSA) parameters, δaniso and η, were calculated from experimental MAS NMR spectra that revealed an almost axially symmetric 113Cd chemical shift tensor. From a combination of TG and DSC measurements taken under an argon atmosphere, we found that the MASs of adduct 1 is lost in two steps involving initial desorption of coordinated py molecules with subsequent thermal destruction of liberated cadmium(II) di-iso-butyldithiocarbamate, with yellow-orange, fine-powdered solid CdS as the final product.
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a pyridine adduct of bis di iso butyldithiocarbamato s s cadmium ii multinuclear 13c 15n 113cd cp MAS NMR Spectroscopy crystal and molecular structure and thermal behaviour
Inorganica Chimica Acta, 2011Co-Authors: T. A. Rodina, A V Ivanov, A V Gerasimenko, M A Ivanov, A S Zaeva, Tatyana S Philippova, Oleg N AntzutkinAbstract:Crystalline bis(N, N-di-iso-butyldithiocarbamato-S,S')(pyridine)cadmium(II) - adduct 1 was prepared and studied by means of multinuclear (13)C, (15)N, (113)Cd CP/MAS NMR Spectroscopy, single-crystal X-ray diffraction and simultaneous thermal analysis (STA). In molecular structure 1, the cadmium atom coordinates with four sulphur atoms and one nitrogen atom of pyridine, forming a coordination polyhedron [CdS(4)N], whose geometry is an almost ideal tetragonal pyramidal (C(4v)). The coordinated py molecule is in the apical position, while two structurally non-equivalent di-iso-butyldithiocarbamate ligands, playing the same terminal S,S'-chelating function, define the basal plane. To characterise additionally the structural state of the cadmium atom in this fivefold coordination, (113)Cd chemical shift anisotropy (CSA) parameters, delta(aniso) and eta, were calculated from experimental MAS NMR spectra that revealed an almost axially symmetric (113)Cd chemical shift tensor. From a combination of TG and DSC measurements taken under an argon atmosphere, we found that the MASs of adduct 1 is lost in two steps involving initial desorption of coordinated py molecules with subsequent thermal destruction of liberated cadmium(II) di-iso-butyldithiocarbamate, with yellow-orange, fine-powdered solid CdS as the final product. (C) 2011 Elsevier B.V. All rights reserved.
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synthesis structural and multinuclear natural abundance 13c 31p 195pt cp MAS NMR studies of crystalline o o dialkyldithiophosphate platinum ii complexes
Russian Journal of Coordination Chemistry, 2008Co-Authors: A V Ivanov, A V Gerasimenko, M A Ivanov, I A Lutsenko, Oleg N AntzutkinAbstract:Platinum(II) O,O′-dicyclohexyl dithiophosphate [Pt{S2P(O-cyclo-C6H11)2}2] (I) and platinum(II) O,O′-diisopropyl dithiophosphate [Pt{S2P(O-iso-C3H7)2}2] (II) complexes were obtained and studied by solidstate 13C, 31P, and 195Pt CP/MAS NMR Spectroscopy. The dithiophosphate (Dtph) ligands in molecular structure I were found to be coordinated by platinum in S,S′-bidentate fashion to form the planar chromophore [PtS4] (single-crystal X-ray diffraction data). For complex II, a new α-form (α-II) was obtained and identified by 31P MAS NMR Spectroscopy. The 31P chemical shift anisotropy δaniso and the asymmetry parameter η of the 31P chemical shift tensor were calculated from the whole MAS spectra.
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the structural reorganisation of bis diethyldithiocarbamato morpholine zinc ii and copper ii in the course of solid state solvation with morpholine and benzene molecules studied by esr solid state 13c and 15n cp MAS NMR Spectroscopy and single crystal x ray diffraction
Inorganica Chimica Acta, 2001Co-Authors: A V Ivanov, Oleg N Antzutkin, Mikael Kritikos, Willis ForslingAbstract:Abstract Six forms of both non-solvated and solvated adducts of bis(diethyldithiocarbamato)–zinc(II) and –copper(II) with morpholine, of general formulas [M{O(CH2)4NH}{S2CN(C2H5)2}2] and [M{O(CH2)4NH}{S2CN(C2H5)2}2]·L (M=Zn(II) (1): L=O(CH2)4NH (2), C6H6 (3); M=Cu(II) (4): L=O(CH2)4NH (5), C6H6 (6)), have been prepared and studied by means of ESR, solid-state natural abundance 13C and 15N CP/MAS NMR Spectroscopy and single crystal X-ray diffraction data. The existence of two conformers, which are correlated as rotation isomers, was unambiguously established for both zinc(II) and copper(II) non-solvated adducts 1 and 4. These two isomeric forms are characterised by different modes of spatial orientation of the non-planar morpholine ring relative to the two four-membered metallochelate rings. The geometry of the adduct molecules is close to square pyramidal, C4v, and therefore the ground state of the unpaired copper(II) electron corresponds to the 3dx2−y2 atomic orbital (AO). Solvation of the studied adducts in the solid state leads to their significant structural reorganisation at the molecular level, i.e. their structural unification yielding qualitatively new structural states with: (i) different lengths of the ZnN bond; (ii) reoriented heterocyclic ring of the coordinated morpholine molecule; and (iii) an enhanced contribution of trigonal-bipyramidal character to the geometry of the coordination polyhedra of the central atom (from 7.5 and 22.7% in original adducts to ∼75% in solvated forms). The type of geometry of the coordination polyhedrons in the solvated forms of the adducts (intermediate between trigonal bipyramid D3h and square pyramid C4v) correlates with the fact that the ground state of the unpaired copper(II) electron is a mixture of 3dz2 and 3dx2−y2 AOs. All observed ESR and NMR resonances have been assigned and are in agreement with the structures obtained from X-ray diffraction data.
A V Ivanov - One of the best experts on this subject based on the ideXlab platform.
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supramolecular self organisation and conformational isomerism of a binuclear o o dipropyl dithiophosphate gold i complex au2 s2p oc3h7 2 2 synthesis 13c and 31p cp MAS NMR Spectroscopy single crystal x ray diffraction study and thermal behaviour
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2015Co-Authors: T. A. Rodina, E. V. Korneeva, Oleg N Antzutkin, A V IvanovAbstract:Crystalline one-dimensional polymeric catena-poly[bis(μ2-O,O'-dipropyldithiophosphato-S,S')digold(I)] (Au-Au) (1) was prepared and studied using (13)C and (31)P CP/MAS NMR Spectroscopy and single-crystal X-ray diffraction. To elucidate the structural function of Dtph ligands in crystalline gold(I) O,O'-dipropyl dithiophosphate, the chemical shift anisotropy parameters (δaniso and η) were calculated from spinning sideband manifolds in (31)P MAS NMR spectra. A novel structure of the gold(I) compound comprises two isomeric, non-centrosymmetric binuclear molecules of [Au2{S2P(OC3H7)2}2] (isomers 'A' and 'B'), whose four Dtph groups display structural inequivalence. In each isomeric binuclear molecule of 1, a pair of μ2-bridging dipropyl Dtph ligands almost symmetrically links two neighbouring gold atoms, forming an extensive eight-membered metallocycle [Au2S4P2], while the intramolecular aurophilic Au⋯Au bond additionally stabilises this central cyclic moiety. At the supramolecular level of complex 1, intermolecular aurophilic Au⋯Au bonds yield almost linear infinite polymeric chains (⋯'A'⋯'B'⋯'A'⋯'B'⋯)n. The thermal behaviour of this compound was studied by the simultaneous thermal analysis (STA) technique (a combination of TG and DSC) under an argon atmosphere.
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structural organization of dithiocarbamate heteropolynuclear gold iii cadmium complexes from x ray crystallography and 113cd MAS NMR Spectroscopy data
Journal of Structural Chemistry, 2013Co-Authors: O V Loseva, T. A. Rodina, A V Ivanov, A V Gerasimenko, Oleg N AntsutkinAbstract:We study the interaction of dialkyl substituted and cyclic cadmium dithiocarbamates with [AuCl4]− anions in 2M HCl medium. The state of the chemisorbents upon contact with AuCl3 solutions is controlled by 113Cd MAS NMR Spectroscopy. The result of the heterogeneous reactions involving chemisorption binding of gold(III) from the solutions and partial ion exchange is the formation of heteropolynuclear gold(III)-cadmium complexes. The crystal and molecular structure of the acetone-solvated form of polymeric bis-(N,N-diethyldithiocarbamato-S,S′) gold(III) hexachlorodicadmate is identified by single-crystal XRD. The main structural moieties of the compound are complex [Au{S2CN(C2H5)2}2]+ cations and [Cd2Cl6]2− anions. The structural self-organization of the complex at the supramolecular level is attributed to the secondary Au…S bonds between neighboring isomeric complex gold(III) cations; the bonding results in the formation of linear polymer ([Au{S2CN(C2H5)2}2]+)n chains, with [Cd2Cl6]2− anions alternating to the right and left of the chains.
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a pyridine adduct of bis di iso butyldithiocarbamato s s cadmium ii multinuclear 13c 15n 113cd cp MAS NMR Spectroscopy crystal and molecular structure and thermal behaviour
Inorganica Chimica Acta, 2011Co-Authors: T. A. Rodina, A V Ivanov, A V Gerasimenko, M A Ivanov, A S Zaeva, Tatyana S Philippova, Oleg N AntzutkinAbstract:Abstract Crystalline bis(N,N-di-iso-butyldithiocarbamato-S,S′)(pyridine)cadmium(II) – adduct 1 was prepared and studied by means of multinuclear 13C, 15N, 113Cd CP/MAS NMR Spectroscopy, single-crystal X-ray diffraction and simultaneous thermal analysis (STA). In molecular structure 1, the cadmium atom coordinates with four sulphur atoms and one nitrogen atom of pyridine, forming a coordination polyhedron [CdS4N], whose geometry is an almost ideal tetragonal pyramidal (C4v). The coordinated py molecule is in the apical position, while two structurally non-equivalent di-iso-butyldithiocarbamate ligands, playing the same terminal S,S′-chelating function, define the basal plane. To characterise additionally the structural state of the cadmium atom in this fivefold coordination, 113Cd chemical shift anisotropy (CSA) parameters, δaniso and η, were calculated from experimental MAS NMR spectra that revealed an almost axially symmetric 113Cd chemical shift tensor. From a combination of TG and DSC measurements taken under an argon atmosphere, we found that the MASs of adduct 1 is lost in two steps involving initial desorption of coordinated py molecules with subsequent thermal destruction of liberated cadmium(II) di-iso-butyldithiocarbamate, with yellow-orange, fine-powdered solid CdS as the final product.
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a pyridine adduct of bis di iso butyldithiocarbamato s s cadmium ii multinuclear 13c 15n 113cd cp MAS NMR Spectroscopy crystal and molecular structure and thermal behaviour
Inorganica Chimica Acta, 2011Co-Authors: T. A. Rodina, A V Ivanov, A V Gerasimenko, M A Ivanov, A S Zaeva, Tatyana S Philippova, Oleg N AntzutkinAbstract:Crystalline bis(N, N-di-iso-butyldithiocarbamato-S,S')(pyridine)cadmium(II) - adduct 1 was prepared and studied by means of multinuclear (13)C, (15)N, (113)Cd CP/MAS NMR Spectroscopy, single-crystal X-ray diffraction and simultaneous thermal analysis (STA). In molecular structure 1, the cadmium atom coordinates with four sulphur atoms and one nitrogen atom of pyridine, forming a coordination polyhedron [CdS(4)N], whose geometry is an almost ideal tetragonal pyramidal (C(4v)). The coordinated py molecule is in the apical position, while two structurally non-equivalent di-iso-butyldithiocarbamate ligands, playing the same terminal S,S'-chelating function, define the basal plane. To characterise additionally the structural state of the cadmium atom in this fivefold coordination, (113)Cd chemical shift anisotropy (CSA) parameters, delta(aniso) and eta, were calculated from experimental MAS NMR spectra that revealed an almost axially symmetric (113)Cd chemical shift tensor. From a combination of TG and DSC measurements taken under an argon atmosphere, we found that the MASs of adduct 1 is lost in two steps involving initial desorption of coordinated py molecules with subsequent thermal destruction of liberated cadmium(II) di-iso-butyldithiocarbamate, with yellow-orange, fine-powdered solid CdS as the final product. (C) 2011 Elsevier B.V. All rights reserved.
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synthesis structural and multinuclear natural abundance 13c 31p 195pt cp MAS NMR studies of crystalline o o dialkyldithiophosphate platinum ii complexes
Russian Journal of Coordination Chemistry, 2008Co-Authors: A V Ivanov, A V Gerasimenko, M A Ivanov, I A Lutsenko, Oleg N AntzutkinAbstract:Platinum(II) O,O′-dicyclohexyl dithiophosphate [Pt{S2P(O-cyclo-C6H11)2}2] (I) and platinum(II) O,O′-diisopropyl dithiophosphate [Pt{S2P(O-iso-C3H7)2}2] (II) complexes were obtained and studied by solidstate 13C, 31P, and 195Pt CP/MAS NMR Spectroscopy. The dithiophosphate (Dtph) ligands in molecular structure I were found to be coordinated by platinum in S,S′-bidentate fashion to form the planar chromophore [PtS4] (single-crystal X-ray diffraction data). For complex II, a new α-form (α-II) was obtained and identified by 31P MAS NMR Spectroscopy. The 31P chemical shift anisotropy δaniso and the asymmetry parameter η of the 31P chemical shift tensor were calculated from the whole MAS spectra.
T. A. Rodina - One of the best experts on this subject based on the ideXlab platform.
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supramolecular self organisation and conformational isomerism of a binuclear o o dipropyl dithiophosphate gold i complex au2 s2p oc3h7 2 2 synthesis 13c and 31p cp MAS NMR Spectroscopy single crystal x ray diffraction study and thermal behaviour
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2015Co-Authors: T. A. Rodina, E. V. Korneeva, Oleg N Antzutkin, A V IvanovAbstract:Crystalline one-dimensional polymeric catena-poly[bis(μ2-O,O'-dipropyldithiophosphato-S,S')digold(I)] (Au-Au) (1) was prepared and studied using (13)C and (31)P CP/MAS NMR Spectroscopy and single-crystal X-ray diffraction. To elucidate the structural function of Dtph ligands in crystalline gold(I) O,O'-dipropyl dithiophosphate, the chemical shift anisotropy parameters (δaniso and η) were calculated from spinning sideband manifolds in (31)P MAS NMR spectra. A novel structure of the gold(I) compound comprises two isomeric, non-centrosymmetric binuclear molecules of [Au2{S2P(OC3H7)2}2] (isomers 'A' and 'B'), whose four Dtph groups display structural inequivalence. In each isomeric binuclear molecule of 1, a pair of μ2-bridging dipropyl Dtph ligands almost symmetrically links two neighbouring gold atoms, forming an extensive eight-membered metallocycle [Au2S4P2], while the intramolecular aurophilic Au⋯Au bond additionally stabilises this central cyclic moiety. At the supramolecular level of complex 1, intermolecular aurophilic Au⋯Au bonds yield almost linear infinite polymeric chains (⋯'A'⋯'B'⋯'A'⋯'B'⋯)n. The thermal behaviour of this compound was studied by the simultaneous thermal analysis (STA) technique (a combination of TG and DSC) under an argon atmosphere.
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polymeric gold i diisobutyl dithiophosphate au2 s2p o iso c4h9 2 2 n synthesis supramolecular self organization a role of aurophilic interaction 13c and 31p MAS NMR Spectroscopy and thermal behavior
Russian Journal of Coordination Chemistry, 2014Co-Authors: E. V. Korneeva, T. A. Rodina, Alexander V. Ivanov, Andrey V. Gerasimenko, Anna-carin LarssonAbstract:A new polymeric gold(I) diisobutyl dithiophosphate (Dtph), [Au2{S2P(O-iso-C4H9)2}2]n (I), was preparatively obtained and characterized by 13C and 31P MAS NMR Spectroscopy and X-ray diffraction (CIF file CCDC no. 977818). Diagrams of the χ2 statistic were constructed from the complete 31P MAS NMR spectra and used to calculate the 31P chemical shift anisotropy (δaniso = δzz − δiso) and the asymmetry parameter η = (δyy − δxx)/(δzz − δiso). The main structural unit of complex I is the noncentrosymmetric dinuclear molecule [Au2{S2P(O-iso-C4H9)2}2], in which the gold atoms are linked by two bridging ligands Dtph. The central cyclic structural fragment of the dimer [Au2S4P2] is additionally stabilized by the intramolecular aurophilic interaction Au⋯Au. Further supramolecular self-organization of the complex involves intermolecular aurophilic bonds Au⋯Au that serve to unite adjacent dinuclear molecules [Au2{S2P(O-iso-C4H9)2}2] with different spatial orientations into the polymer chains ([Au2{S2P(O-iso-C4H9)2}2])n. The thermal behavior of complex I was examined by synchronous thermal analysis under argon. The character of the thermolysis of the complex to reduced metallic gold as a final product was determined.
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structural organization of dithiocarbamate heteropolynuclear gold iii cadmium complexes from x ray crystallography and 113cd MAS NMR Spectroscopy data
Journal of Structural Chemistry, 2013Co-Authors: O V Loseva, T. A. Rodina, A V Ivanov, A V Gerasimenko, Oleg N AntsutkinAbstract:We study the interaction of dialkyl substituted and cyclic cadmium dithiocarbamates with [AuCl4]− anions in 2M HCl medium. The state of the chemisorbents upon contact with AuCl3 solutions is controlled by 113Cd MAS NMR Spectroscopy. The result of the heterogeneous reactions involving chemisorption binding of gold(III) from the solutions and partial ion exchange is the formation of heteropolynuclear gold(III)-cadmium complexes. The crystal and molecular structure of the acetone-solvated form of polymeric bis-(N,N-diethyldithiocarbamato-S,S′) gold(III) hexachlorodicadmate is identified by single-crystal XRD. The main structural moieties of the compound are complex [Au{S2CN(C2H5)2}2]+ cations and [Cd2Cl6]2− anions. The structural self-organization of the complex at the supramolecular level is attributed to the secondary Au…S bonds between neighboring isomeric complex gold(III) cations; the bonding results in the formation of linear polymer ([Au{S2CN(C2H5)2}2]+)n chains, with [Cd2Cl6]2− anions alternating to the right and left of the chains.
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a pyridine adduct of bis di iso butyldithiocarbamato s s cadmium ii multinuclear 13c 15n 113cd cp MAS NMR Spectroscopy crystal and molecular structure and thermal behaviour
Inorganica Chimica Acta, 2011Co-Authors: T. A. Rodina, A V Ivanov, A V Gerasimenko, M A Ivanov, A S Zaeva, Tatyana S Philippova, Oleg N AntzutkinAbstract:Abstract Crystalline bis(N,N-di-iso-butyldithiocarbamato-S,S′)(pyridine)cadmium(II) – adduct 1 was prepared and studied by means of multinuclear 13C, 15N, 113Cd CP/MAS NMR Spectroscopy, single-crystal X-ray diffraction and simultaneous thermal analysis (STA). In molecular structure 1, the cadmium atom coordinates with four sulphur atoms and one nitrogen atom of pyridine, forming a coordination polyhedron [CdS4N], whose geometry is an almost ideal tetragonal pyramidal (C4v). The coordinated py molecule is in the apical position, while two structurally non-equivalent di-iso-butyldithiocarbamate ligands, playing the same terminal S,S′-chelating function, define the basal plane. To characterise additionally the structural state of the cadmium atom in this fivefold coordination, 113Cd chemical shift anisotropy (CSA) parameters, δaniso and η, were calculated from experimental MAS NMR spectra that revealed an almost axially symmetric 113Cd chemical shift tensor. From a combination of TG and DSC measurements taken under an argon atmosphere, we found that the MASs of adduct 1 is lost in two steps involving initial desorption of coordinated py molecules with subsequent thermal destruction of liberated cadmium(II) di-iso-butyldithiocarbamate, with yellow-orange, fine-powdered solid CdS as the final product.
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a pyridine adduct of bis di iso butyldithiocarbamato s s cadmium ii multinuclear 13c 15n 113cd cp MAS NMR Spectroscopy crystal and molecular structure and thermal behaviour
Inorganica Chimica Acta, 2011Co-Authors: T. A. Rodina, A V Ivanov, A V Gerasimenko, M A Ivanov, A S Zaeva, Tatyana S Philippova, Oleg N AntzutkinAbstract:Crystalline bis(N, N-di-iso-butyldithiocarbamato-S,S')(pyridine)cadmium(II) - adduct 1 was prepared and studied by means of multinuclear (13)C, (15)N, (113)Cd CP/MAS NMR Spectroscopy, single-crystal X-ray diffraction and simultaneous thermal analysis (STA). In molecular structure 1, the cadmium atom coordinates with four sulphur atoms and one nitrogen atom of pyridine, forming a coordination polyhedron [CdS(4)N], whose geometry is an almost ideal tetragonal pyramidal (C(4v)). The coordinated py molecule is in the apical position, while two structurally non-equivalent di-iso-butyldithiocarbamate ligands, playing the same terminal S,S'-chelating function, define the basal plane. To characterise additionally the structural state of the cadmium atom in this fivefold coordination, (113)Cd chemical shift anisotropy (CSA) parameters, delta(aniso) and eta, were calculated from experimental MAS NMR spectra that revealed an almost axially symmetric (113)Cd chemical shift tensor. From a combination of TG and DSC measurements taken under an argon atmosphere, we found that the MASs of adduct 1 is lost in two steps involving initial desorption of coordinated py molecules with subsequent thermal destruction of liberated cadmium(II) di-iso-butyldithiocarbamate, with yellow-orange, fine-powdered solid CdS as the final product. (C) 2011 Elsevier B.V. All rights reserved.
A V Gerasimenko - One of the best experts on this subject based on the ideXlab platform.
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structural organization of dithiocarbamate heteropolynuclear gold iii cadmium complexes from x ray crystallography and 113cd MAS NMR Spectroscopy data
Journal of Structural Chemistry, 2013Co-Authors: O V Loseva, T. A. Rodina, A V Ivanov, A V Gerasimenko, Oleg N AntsutkinAbstract:We study the interaction of dialkyl substituted and cyclic cadmium dithiocarbamates with [AuCl4]− anions in 2M HCl medium. The state of the chemisorbents upon contact with AuCl3 solutions is controlled by 113Cd MAS NMR Spectroscopy. The result of the heterogeneous reactions involving chemisorption binding of gold(III) from the solutions and partial ion exchange is the formation of heteropolynuclear gold(III)-cadmium complexes. The crystal and molecular structure of the acetone-solvated form of polymeric bis-(N,N-diethyldithiocarbamato-S,S′) gold(III) hexachlorodicadmate is identified by single-crystal XRD. The main structural moieties of the compound are complex [Au{S2CN(C2H5)2}2]+ cations and [Cd2Cl6]2− anions. The structural self-organization of the complex at the supramolecular level is attributed to the secondary Au…S bonds between neighboring isomeric complex gold(III) cations; the bonding results in the formation of linear polymer ([Au{S2CN(C2H5)2}2]+)n chains, with [Cd2Cl6]2− anions alternating to the right and left of the chains.
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a pyridine adduct of bis di iso butyldithiocarbamato s s cadmium ii multinuclear 13c 15n 113cd cp MAS NMR Spectroscopy crystal and molecular structure and thermal behaviour
Inorganica Chimica Acta, 2011Co-Authors: T. A. Rodina, A V Ivanov, A V Gerasimenko, M A Ivanov, A S Zaeva, Tatyana S Philippova, Oleg N AntzutkinAbstract:Abstract Crystalline bis(N,N-di-iso-butyldithiocarbamato-S,S′)(pyridine)cadmium(II) – adduct 1 was prepared and studied by means of multinuclear 13C, 15N, 113Cd CP/MAS NMR Spectroscopy, single-crystal X-ray diffraction and simultaneous thermal analysis (STA). In molecular structure 1, the cadmium atom coordinates with four sulphur atoms and one nitrogen atom of pyridine, forming a coordination polyhedron [CdS4N], whose geometry is an almost ideal tetragonal pyramidal (C4v). The coordinated py molecule is in the apical position, while two structurally non-equivalent di-iso-butyldithiocarbamate ligands, playing the same terminal S,S′-chelating function, define the basal plane. To characterise additionally the structural state of the cadmium atom in this fivefold coordination, 113Cd chemical shift anisotropy (CSA) parameters, δaniso and η, were calculated from experimental MAS NMR spectra that revealed an almost axially symmetric 113Cd chemical shift tensor. From a combination of TG and DSC measurements taken under an argon atmosphere, we found that the MASs of adduct 1 is lost in two steps involving initial desorption of coordinated py molecules with subsequent thermal destruction of liberated cadmium(II) di-iso-butyldithiocarbamate, with yellow-orange, fine-powdered solid CdS as the final product.
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a pyridine adduct of bis di iso butyldithiocarbamato s s cadmium ii multinuclear 13c 15n 113cd cp MAS NMR Spectroscopy crystal and molecular structure and thermal behaviour
Inorganica Chimica Acta, 2011Co-Authors: T. A. Rodina, A V Ivanov, A V Gerasimenko, M A Ivanov, A S Zaeva, Tatyana S Philippova, Oleg N AntzutkinAbstract:Crystalline bis(N, N-di-iso-butyldithiocarbamato-S,S')(pyridine)cadmium(II) - adduct 1 was prepared and studied by means of multinuclear (13)C, (15)N, (113)Cd CP/MAS NMR Spectroscopy, single-crystal X-ray diffraction and simultaneous thermal analysis (STA). In molecular structure 1, the cadmium atom coordinates with four sulphur atoms and one nitrogen atom of pyridine, forming a coordination polyhedron [CdS(4)N], whose geometry is an almost ideal tetragonal pyramidal (C(4v)). The coordinated py molecule is in the apical position, while two structurally non-equivalent di-iso-butyldithiocarbamate ligands, playing the same terminal S,S'-chelating function, define the basal plane. To characterise additionally the structural state of the cadmium atom in this fivefold coordination, (113)Cd chemical shift anisotropy (CSA) parameters, delta(aniso) and eta, were calculated from experimental MAS NMR spectra that revealed an almost axially symmetric (113)Cd chemical shift tensor. From a combination of TG and DSC measurements taken under an argon atmosphere, we found that the MASs of adduct 1 is lost in two steps involving initial desorption of coordinated py molecules with subsequent thermal destruction of liberated cadmium(II) di-iso-butyldithiocarbamate, with yellow-orange, fine-powdered solid CdS as the final product. (C) 2011 Elsevier B.V. All rights reserved.
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synthesis structural and multinuclear natural abundance 13c 31p 195pt cp MAS NMR studies of crystalline o o dialkyldithiophosphate platinum ii complexes
Russian Journal of Coordination Chemistry, 2008Co-Authors: A V Ivanov, A V Gerasimenko, M A Ivanov, I A Lutsenko, Oleg N AntzutkinAbstract:Platinum(II) O,O′-dicyclohexyl dithiophosphate [Pt{S2P(O-cyclo-C6H11)2}2] (I) and platinum(II) O,O′-diisopropyl dithiophosphate [Pt{S2P(O-iso-C3H7)2}2] (II) complexes were obtained and studied by solidstate 13C, 31P, and 195Pt CP/MAS NMR Spectroscopy. The dithiophosphate (Dtph) ligands in molecular structure I were found to be coordinated by platinum in S,S′-bidentate fashion to form the planar chromophore [PtS4] (single-crystal X-ray diffraction data). For complex II, a new α-form (α-II) was obtained and identified by 31P MAS NMR Spectroscopy. The 31P chemical shift anisotropy δaniso and the asymmetry parameter η of the 31P chemical shift tensor were calculated from the whole MAS spectra.
M A Ivanov - One of the best experts on this subject based on the ideXlab platform.
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a pyridine adduct of bis di iso butyldithiocarbamato s s cadmium ii multinuclear 13c 15n 113cd cp MAS NMR Spectroscopy crystal and molecular structure and thermal behaviour
Inorganica Chimica Acta, 2011Co-Authors: T. A. Rodina, A V Ivanov, A V Gerasimenko, M A Ivanov, A S Zaeva, Tatyana S Philippova, Oleg N AntzutkinAbstract:Abstract Crystalline bis(N,N-di-iso-butyldithiocarbamato-S,S′)(pyridine)cadmium(II) – adduct 1 was prepared and studied by means of multinuclear 13C, 15N, 113Cd CP/MAS NMR Spectroscopy, single-crystal X-ray diffraction and simultaneous thermal analysis (STA). In molecular structure 1, the cadmium atom coordinates with four sulphur atoms and one nitrogen atom of pyridine, forming a coordination polyhedron [CdS4N], whose geometry is an almost ideal tetragonal pyramidal (C4v). The coordinated py molecule is in the apical position, while two structurally non-equivalent di-iso-butyldithiocarbamate ligands, playing the same terminal S,S′-chelating function, define the basal plane. To characterise additionally the structural state of the cadmium atom in this fivefold coordination, 113Cd chemical shift anisotropy (CSA) parameters, δaniso and η, were calculated from experimental MAS NMR spectra that revealed an almost axially symmetric 113Cd chemical shift tensor. From a combination of TG and DSC measurements taken under an argon atmosphere, we found that the MASs of adduct 1 is lost in two steps involving initial desorption of coordinated py molecules with subsequent thermal destruction of liberated cadmium(II) di-iso-butyldithiocarbamate, with yellow-orange, fine-powdered solid CdS as the final product.
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a pyridine adduct of bis di iso butyldithiocarbamato s s cadmium ii multinuclear 13c 15n 113cd cp MAS NMR Spectroscopy crystal and molecular structure and thermal behaviour
Inorganica Chimica Acta, 2011Co-Authors: T. A. Rodina, A V Ivanov, A V Gerasimenko, M A Ivanov, A S Zaeva, Tatyana S Philippova, Oleg N AntzutkinAbstract:Crystalline bis(N, N-di-iso-butyldithiocarbamato-S,S')(pyridine)cadmium(II) - adduct 1 was prepared and studied by means of multinuclear (13)C, (15)N, (113)Cd CP/MAS NMR Spectroscopy, single-crystal X-ray diffraction and simultaneous thermal analysis (STA). In molecular structure 1, the cadmium atom coordinates with four sulphur atoms and one nitrogen atom of pyridine, forming a coordination polyhedron [CdS(4)N], whose geometry is an almost ideal tetragonal pyramidal (C(4v)). The coordinated py molecule is in the apical position, while two structurally non-equivalent di-iso-butyldithiocarbamate ligands, playing the same terminal S,S'-chelating function, define the basal plane. To characterise additionally the structural state of the cadmium atom in this fivefold coordination, (113)Cd chemical shift anisotropy (CSA) parameters, delta(aniso) and eta, were calculated from experimental MAS NMR spectra that revealed an almost axially symmetric (113)Cd chemical shift tensor. From a combination of TG and DSC measurements taken under an argon atmosphere, we found that the MASs of adduct 1 is lost in two steps involving initial desorption of coordinated py molecules with subsequent thermal destruction of liberated cadmium(II) di-iso-butyldithiocarbamate, with yellow-orange, fine-powdered solid CdS as the final product. (C) 2011 Elsevier B.V. All rights reserved.
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synthesis structural and multinuclear natural abundance 13c 31p 195pt cp MAS NMR studies of crystalline o o dialkyldithiophosphate platinum ii complexes
Russian Journal of Coordination Chemistry, 2008Co-Authors: A V Ivanov, A V Gerasimenko, M A Ivanov, I A Lutsenko, Oleg N AntzutkinAbstract:Platinum(II) O,O′-dicyclohexyl dithiophosphate [Pt{S2P(O-cyclo-C6H11)2}2] (I) and platinum(II) O,O′-diisopropyl dithiophosphate [Pt{S2P(O-iso-C3H7)2}2] (II) complexes were obtained and studied by solidstate 13C, 31P, and 195Pt CP/MAS NMR Spectroscopy. The dithiophosphate (Dtph) ligands in molecular structure I were found to be coordinated by platinum in S,S′-bidentate fashion to form the planar chromophore [PtS4] (single-crystal X-ray diffraction data). For complex II, a new α-form (α-II) was obtained and identified by 31P MAS NMR Spectroscopy. The 31P chemical shift anisotropy δaniso and the asymmetry parameter η of the 31P chemical shift tensor were calculated from the whole MAS spectra.