Synthesis and structure of complexes of Co(II) acetate and Zn(II) chloride with 2-aminobenzothiazole
摘要:
Complexes of Co(II) acetate and Zn(II) chloride with 2-aminobenzothiazole were prepared, and their structures were studied by IR spectroscopy and single crystal X-ray diffraction. The complexes have the composition [Co(CH3COO)(2)(2-aminobenzothiazole)(2)] and [Zncl(2)(2-aminobenzothiazole)(2)]. The coordination core has a distorted tetrahedral configuration. The metal ion coordinates two nitrogen atoms of the thiazole rings and two oxygen atoms of acetate ligands or two chloride ions.
The title complex, [Co(C2H3O2)(2)(C7H6N2S)(2)], contains a Co centre with a slightly distorted tetrahedral coordination geometry, involving two acetate ligands and two N atoms from the thiazole moiety [ Co - O = 2.0025 ( 14) and 1.9953 ( 16) angstrom, and Co - N = 2.0524 ( 18) and 2.0568 ( 18) angstrom]. The interplanar angle between the two benzothiazole moieties is 77.86 ( 3) degrees. The amine groups, acting as donors, participate in intra- and intermolecular N - H center dot center dot center dot O hydrogen bonds, with N center dot center dot center dot O distances in the range 2.806 ( 2) - 2.857 ( 2) angstrom.