of the Mixed-Ligand Cobalt(III) Complex
[Co(DH)(Hthsc)2][SiF6]
2.3H2O
Synthesis and Structure
of the Mixed-Ligand Cobalt(III) Complex
[Co(DH)(Hthsc)2][SiF6] 2.3H2O
P. N. Bourosh*, N. V. Gerbeleu**, M. Gdaniec***, Yu. A. Simonov*,
O. A. Bologa**, and E. B. Koropchanu**
* Institute of Applied Physics, Academy of Sciences of Moldova, Chisinau, Moldova
** Institute of Chemistry, Academy of Sciences of Moldova, Chisinau, Moldova
*** Department of Chemistry, Mickiewicz University, Poznan, Poland
Received January 12, 2005
Abstract—The compound [Co(DH)(Hthsc)2][SiF6] · 2.3H2O, where DH– is a dimethylglyoxime residue and
Hthsc is a thiosemicarbazide molecule, was synthesized and studied by X-ray diffraction. The coordination
polyhedron of the central metal ion (distorted octahedron) is formed by two sulfur atoms, two nitrogen atoms
of two Hthsc molecules coordinated in the bidentate mode, and two nitrogen atoms of the DH– ligand. The posi-
tions of three metal rings are fixed by two intramolecular hydrogen bonds (N–H···O). A bifurcated system of
intermolecular hydrogen bonds forms a framework structure in the crystal.
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