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Acta Cryst. (2005). E61, m849-m851  [ doi:10.1107/S1600536805010123 ]

trans-Imidazole isomer of the bis(L-histidinato)cobalt(III) complex

L. J. Zompa

Abstract: The title compound, bis(L-histidinato)cobalt(III)-chloride-nitrate-water (1/0.4/0.6/2.5), [Co(C6H8N3O2)2]Cl0.4(NO3)0.6·2.5H2O, crystallizes as a mixed chloride/nitrate hydrate salt. This crystallographic experiment validates earlier research which concluded that the red chromatographic fraction contains the trans-imidazole isomer of the complex. The asymmetric unit contains two complex cations, 0.80-chloride, 1.20-nitrate, and five solvent water molecules.

Online 9 April 2005


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