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2 Imidazolidinethione

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Yuanjian Deng – One of the best experts on this subject based on the ideXlab platform.

  • Novel platinum(II) complexes containing diaminocyclohexane and thiourea derivative ligands: Synthesis and X-ray crystal structure of ( trans -1,2-diaminocyclohexane)dithioureaplatinum(II) nitrate monohydrate
    Inorganica Chimica Acta, 2014
    Co-Authors: Jing Fang, John B. Sapp, Xin Wei, Yuanjian Deng
    Abstract:

    Abstract Six novel platinum(II) complexes of the form [Pt(dach)L2](NO3)2, where dach = trans-1,2-diaminocyclohexane, L = thiourea (tu) or its derivatives, including 1-acetyl-2-thiourea, 1-ethyl-2-thiourea, 2–Imidazolidinethione, 1,3-dimethyl-2-thiourea and 1,1,3,3-tetramethyl-2-thiourea, have been synthesized and characterized by elemental analysis, IR spectrometry, and NMR (1H and 13C) spectroscopy. The general synthetic procedure involves the reaction of [Pt(dach)(H2O)2](NO3)2, which is formed in situ by treating Pt(dach)I2 with silver nitrate, and two equivalents of tu or its derivatives. All the complexes are ionic compounds with nitrate counter ions and thus water soluble. The crystal structure of [Pt(dach)(tu)2](NO3)2·H2O is determined using a single crystal X-ray diffraction method. This compound crystallizes in the orthorhombic space group Pnma with centrosymmetry.

  • Synthesis and characterization of platinum(II) complexes with 2–Imidazolidinethione. X-ray crystal structure of tetra(2–Imidazolidinethione– S )platinum(II) iodide dimethylsulfoxide solvate monohydrate
    Journal of Coordination Chemistry, 2008
    Co-Authors: Jianxin Lin, Lee M. Daniels, Xin Wei, John B. Sapp, Yuanjian Deng
    Abstract:

    Preparations of trans-[PtX2(Imt)2] (Imt  = 2–Imidazolidinethione, X=Cl− or I−) and [Pt(Imt)4]I2 are described. These complexes were characterized by elemental analysis, thermal analysis, mid- and far-IR spectroscopy, and NMR (1H and 13C) spectroscopy. The crystal and molecular structure of [Pt(Imt)4]I2  · DMSO  · H2O was determined by X-ray diffraction methods. The structural data reveal the following features: (a) the platinum atom in [Pt(Imt)4]2+ is essentially in a square-planar environment, (b) the entire dication possesses approximately C 2h symmetry, (c) no appreciable hydrogen bonding exists between the iodide ions and the Imt ligands in the dication, (d) two pairs of two mutually cis Imt ligands are arranged above and below the PtS4 plane, respectively, and (e) two planes defined by two trans Imt rings are perpendicular to each other.

Doyle Britton – One of the best experts on this subject based on the ideXlab platform.

  • Crystal structures of a family of silver cyanide complexes of thiourea and substituted thioureas.
    Inorganic chemistry, 2000
    Co-Authors: Fred B. Stocker, Doyle Britton, V G Young
    Abstract:

    The syntheses and crystal structures of a family of silver cyanide complexes of thiourea and substituted thioureas are reported. The sulfur ligands include thiourea (tu), 1-methyl-2-thiourea (mtu), 1,3-dimethyl-2-thiourea (dmtu), 1,1,3,3-tetramethyl-2-thiourea (tmtu), and 2–Imidazolidinethione (N,N’-ethylenethiourea, etu). Synthesis was effected by dissolving AgCN in an aqueous solution of ligand. Two different complexes were obtained by the reaction of AgCN with tu. Complex 1a: (AgCN)(tu), monoclinic, P2(1)/c, a = 9.3851 (6) A, b = 8.2782 (5) A, c = 7.1178 (5) A, beta = 94.591 (1) degree, and Z = 4. Complex 1b: (AgCN)(tu)2, triclinic, P1, a = 7.9485 (14) A, b = 9.431 (2) A, c = 12.771 (2) A, alpha = 85.695 (3) degrees, beta = 81.210 (4) degrees, gamma = 77.987 (2) degrees, and Z = 4. Complex 2: (AgCN)(mtu), triclinic, P1, a = 4.113 (2) A, b = 9.472 (4) A, c = 9.679 (4) A, alpha = 113.918 (5) degrees, beta = 98.188 (6) degrees, gamma = 97.725 (6) degrees, and Z = 2. Complex 3 (AgCN)2(dmtu)2, monoclinic, P2(1)/m, a = 7.1482 (7) A, b = 14.776 (2) A, c = 7.3366 (7) A, beta = 92.418 (2) degrees, and Z = 2. Complex 4: (AgCN)(tmtu), orthorhombic, P2(1)2(1)2(1), a = 8.823(6) A, b = 10.209 (2) A, c = 10.362 (2) A, and Z = 4. Complex 5: (AgCN)2(etu)2, triclinic, P1, a = 6.8001 (2) A, b = 8.6154 (1) A, c = 13.4747 (3) A, alpha = 71.720 (1) degree, beta = 79.906 (1) degree, gamma = 75.885 (2) degrees, and Z = 2. All of the structures involve either one- or two-dimensional polymeric arrays held together by bridging S and CN groups. There is, however, no similarity between any two of the arrays. Four of the five ligands used also form similar complexes with CuCN. For one ligand, tmtu, the structures are isomorphous. For the other three, not only are the structures not isomorphous, the m/n ratio in (MCN)mLn when M is Ag is different from that when M is Cu.

  • Crystal Structures of a Family of New Copper(I) Cyanide Complexes of Thiourea and Substituted Thioureas.
    Inorganic chemistry, 1996
    Co-Authors: Fred B. Stocker, Melissa A. Troester, Doyle Britton
    Abstract:

    The syntheses and crystal structures of a family of silver cyanide complexes of thiourea and substituted thioureas are reported. The sulfur ligands include thiourea (tu), 1-methyl-2-thiourea (mtu), 1,3-dimethyl-2-thiourea (dmtu), 1,1,3,3-tetramethyl-2-thiourea (tmtu), and 2–Imidazolidinethione (N,N‘-ethylenethiourea, etu). Synthesis was effected by dissolving AgCN in an aqueous solution of ligand. Two different complexes were obtained by the reaction of AgCN with tu. Complex 1a:  (AgCN)(tu), monoclinic, P21/c, a = 9.3851 (6) A, b = 8.2782 (5) A, c = 7.1178 (5) A, β = 94.591 (1)°, and Z = 4. Complex 1b:  (AgCN)(tu)2, triclinic, P1, a = 7.9485 (14) A, b = 9.431 (2) A, c = 12.771 (2) A, α = 85.695 (3)°, β = 81.210 (4)°, γ = 77.987 (2)°, and Z = 4. Complex 2:  (AgCN)(mtu), triclinic, P1, a = 4.113 (2) A, b = 9.472 (4) A, c = 9.679 (4) A, α = 113.918 (5)°, β = 98.188 (6)°, γ = 97.725 (6)°, and Z = 2. Complex 3 (AgCN)2(dmtu)2, monoclinic, P21/m, a = 7.1482 (7) A, b = 14.776 (2) A, c = 7.3366 (7) A, β = 92.418…

Xin Wei – One of the best experts on this subject based on the ideXlab platform.

  • Novel platinum(II) complexes containing diaminocyclohexane and thiourea derivative ligands: Synthesis and X-ray crystal structure of ( trans -1,2-diaminocyclohexane)dithioureaplatinum(II) nitrate monohydrate
    Inorganica Chimica Acta, 2014
    Co-Authors: Jing Fang, John B. Sapp, Xin Wei, Yuanjian Deng
    Abstract:

    Abstract Six novel platinum(II) complexes of the form [Pt(dach)L2](NO3)2, where dach = trans-1,2-diaminocyclohexane, L = thiourea (tu) or its derivatives, including 1-acetyl-2-thiourea, 1-ethyl-2-thiourea, 2–Imidazolidinethione, 1,3-dimethyl-2-thiourea and 1,1,3,3-tetramethyl-2-thiourea, have been synthesized and characterized by elemental analysis, IR spectrometry, and NMR (1H and 13C) spectroscopy. The general synthetic procedure involves the reaction of [Pt(dach)(H2O)2](NO3)2, which is formed in situ by treating Pt(dach)I2 with silver nitrate, and two equivalents of tu or its derivatives. All the complexes are ionic compounds with nitrate counter ions and thus water soluble. The crystal structure of [Pt(dach)(tu)2](NO3)2·H2O is determined using a single crystal X-ray diffraction method. This compound crystallizes in the orthorhombic space group Pnma with centrosymmetry.

  • Synthesis and characterization of platinum(II) complexes with 2–Imidazolidinethione. X-ray crystal structure of tetra(2–Imidazolidinethione– S )platinum(II) iodide dimethylsulfoxide solvate monohydrate
    Journal of Coordination Chemistry, 2008
    Co-Authors: Jianxin Lin, Lee M. Daniels, Xin Wei, John B. Sapp, Yuanjian Deng
    Abstract:

    Preparations of trans-[PtX2(Imt)2] (Imt  = 2–Imidazolidinethione, X=Cl− or I−) and [Pt(Imt)4]I2 are described. These complexes were characterized by elemental analysis, thermal analysis, mid- and far-IR spectroscopy, and NMR (1H and 13C) spectroscopy. The crystal and molecular structure of [Pt(Imt)4]I2  · DMSO  · H2O was determined by X-ray diffraction methods. The structural data reveal the following features: (a) the platinum atom in [Pt(Imt)4]2+ is essentially in a square-planar environment, (b) the entire dication possesses approximately C 2h symmetry, (c) no appreciable hydrogen bonding exists between the iodide ions and the Imt ligands in the dication, (d) two pairs of two mutually cis Imt ligands are arranged above and below the PtS4 plane, respectively, and (e) two planes defined by two trans Imt rings are perpendicular to each other.