ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Solvent Effects on the Aquation of Chlorocobalt(III) Complexes: the Role of Nonlabile Ligand

O. Grančičová

Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University, SK-842 15 Bratislava

E-mail: grancicova@fns.uniba.sk

Received: 11 February 2003

Abstract: The aquation of trans-[Co(me2tn)2Cl2]+, β-cis-[Co(trien)Cl2]+, and trans-[Co(2,2,3-tet)Cl2 ]+ has been investigated in aqueous mixtures of methanol, tert-butanol, acetonitrile, dimethyl sulfoxide, sulfolane, N-methyl-2-pyrrolidinone, ethylene carbonate, and urea, respectively, at 298.1 K. Results are discussed in terms of the importance of structure of aqueous binary mixtures in preferential solvation of complex ions and of size and hydrophobicity of the nonlabile ligands.

Full paper in Portable Document Format: 593a149.pdf

Chemical Papers 59 (3) 149–152 (2005)