CRYSTAL STRUCTURE OF Co(III) a-DIMETHYLGLYOXIMATES WITH IMIDAZOLE
A. A. Vitiu1, E. B. Coropceanu2, P. N. Bourosh1
1Institute of Applied Physics, Academy of Sciences of Moldova, Chisinau, Moldova
2Institute of Chemistry, Academy of Sciences of Moldova, Chisinau, Moldova
Keywords: синтез, реакция замещения, структурный блок, диоксиматы Co(III), рентгеноструктурный анализ, synthesis, substitution reaction, structural block, Co(III) dioximates, single crystal X-ray diffraction analysis
Abstract
Two new dimethylglyoximate complexes [Co(DmgH)2(Im)Cl] (I) and (ImH)[Co(DmgH2)2Cl2] (II), where DmgH‾ is the dimethylglyoxime residue and Im is the imidazole molecule, are synthesized. The composition and structure of the crystals are determined from the elemental analysis, IR spectra, and single crystal X-ray diffraction. Complex I is molecular, containing the Im molecule as a coordinated ligand; complex II is of the ionic type with (ImH)+ involved as an outer-sphere organic cation. The mode of component packing in the crystals mainly depends on the imidazole position in the compounds.
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