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KMID : 0385520050180050386
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Analytical Science & Technology
2005 Volume.18 No. 5 p.386 ~ p.389
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Structural characterization and thermal behaviour of the bis(2-aminothiazole)bis(isothiocyanato)zinc(Ⅱ) complex, Zn(NCS)₂(C₃H₄N₂S)₂
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Suh SW
Kim IH/Kima CH
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Abstract
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The zinc(II) complex, Zn(NCS)₂(C₃H₄N₂S)₂, Ⅰ, has been synthesized and characterized by single crystal X-ray diffraction, thermal analysis and infrared spectroscopy. The complex Ⅰ crystallizes in the triclinic system, P1 space group with α = 7.587(1), b = 8.815(1), c = 12.432(2) A, α= 75.584(8), β= 83.533(9), γ = 68.686(8)°, V = 750.0(2) A³, Z = 2, R₁ = 0.036 and ωR₂ = 0.101. The central Zn(Ⅱ) atom has a tetrahedral coordination geometry, with the heterocyclic nitrogen atoms of 2-aminothiazole ligands and the nitrogen atoms of isothiocyanate ligands. The crystal structure is stabilized by one-dimensional networks of the intermolecular N-H…S hydrogen bonds between the amino group of 2-aminothiazole ligands and the sulfur atom of isothiocyanate ligands. Based on the results of thermal analysis, the thermal decomposition reaction of complex Ⅰ was analyzed to have three distinctive stages such as the loss of 2-aminothiazole, the decomposition of isothiocyanate and the formation of metal oxide.
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