Abstract
Two modifications of the α and β forms of bis(N-phenmethyl-benzimidazole-N)dichloro cobalt(II) complex, CoCl2(C7H5 N 2CH2Ph)2, have been obtained by reacting N-phenmethyl-benzimidazole with CoCl2 in different reaction solvents. X-ray analysis reveals that the two modifications have a similar molecular structure with different geometric parameters. The α-form crystallizes in triclinic, P —1 space group and the β form in the monoclinic, P21/c space group. The crystal structures of both consist of monomeric molecules of [CoCl2(C7H5 N 2CH2Ph)2] with slightly distorted tetrahedron geometry for the CoCl2 N 2 chromophore. They are also characterized by elemental analysis, i.r. spectrum, electronic spectrum, and thermogravimetric differential thermal analysis.
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Jian, F., Wang, H. & Xiao, H. Synthesis, Structures, and Spectroscopic Characterizations of the α and β Forms of bis(N-Phenmethyl-benzimidazole-N) dichloro Cobalt(II) Complex: CoCl2(C7H5 N 2CH2Ph)2 . Structural Chemistry 15, 277–283 (2004). https://doi.org/10.1023/B:STUC.0000026742.02447.f5
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DOI: https://doi.org/10.1023/B:STUC.0000026742.02447.f5