Synthesis and Crystal Structure of a Mixed-Ligand Cobalt(II) Complex with 2-Aminobenzimidazole |
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Authors: | Hong-Kun Zhao Xiu-Guang Wang En-Cui Yang Xiao-Jun Zhao |
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Affiliation: | (1) College of Chemistry and Life Science, Tianjin Normal University, Tianjin, 300387, China |
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Abstract: | Abstract The cobalt(II) complex, [Co(abz)2(SCN)2] 1, has been synthesized by the reaction of cobalt(II) nitrate with ammonium thiocyanate and abz ligands (abz = 2-aminobenzimidazole), and was fully structurally characterized by elemental analysis, IR spectra, X-ray diffraction and thermogravimetric experiments. It crystallizes in the triclinic P-1 space group with a = 8.6316(10), b = 9.3426(10), c = 13.254(2) ?, α = 95.793(2), β = 95.870(2), γ = 115.7380(10), V = 945.1(2) ?3, and Z = 2. The central cobalt(II) atom is four-coordinated to nitrogen donors from two neutral abz ligands and two isothiocyanate anions respectively, adopting a slightly distorted tetrahedral geometry. In addition, the intermolecular N–H···N and N–H···S hydrogen bonds interactions link the discrete mononuclear units into infinite three-dimensional networks. Index Abstract The essence sentence of the paper: In the mixed-ligand mononuclear complex, [Co(abz)2(SCN)2], the four coordinated cobalt(II) atom exhibits a slightly distort tetrahedron, which is further assembled into 3D infinite network by intermolecular hydrogen interactions. |
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Keywords: | Crystal structure Cobalt(II) complex 2-Aminobenzimidazole Mixed-ligand |
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