Cobalt(III) complexes of some aromatic thiohydrazides – Synthesis, characterization and structure

Basak, P., Gangopadhyay, S., De, S., Drew, M. G. B. and Gangopadhyay, P. K. (2010) Cobalt(III) complexes of some aromatic thiohydrazides – Synthesis, characterization and structure. Inorganica Chimica Acta, 363 (7). pp. 1495-1499. ISSN 0020-1693 doi: 10.1016/j.ica.2010.01.011

Abstract/Summary

Co(NH3)(5)Cl]Cl-2 forms neutral 1:3 complex by reaction with aromatic thiohydrazides, i.e. thiobenzhydrazide, o-hydroxythiobenzhydrazide, thiophen-2-thiohydrazide and furan-2-thiohydrazide. All these complexes are diamagnetic and have been characterized by elemental analysis and combination of spectroscopic methods. Cyclic voltammometry of the complexes shows irreversible metal centered and ligand centered electron transfer reactions. One complex, tris-o-hydroxythiobenzhydrazidocobalt(III),has been crystallized from DMSO solution to produce solvated crystals and its structure has been established by X-ray crystallography. Cobalt(III) ion is linked through three hydrazinic nitrogen and three sulfur atoms of three identical deprotonated ligand molecules in a distorted octahedral environment. Involvement of -OH group in intramolecular and intermolecular hydrogen bonding is crucial for crystal formation.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/19561
Item Type	Article
Refereed	Yes
Divisions	Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
Publisher	Elsevier
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