Acta Cryst. (2005). E61, m2230-m2231  [ doi:10.1107/S1600536805031508 ]

Bis[1-hydroxy-4,4,5,5-tetramethyl-2-(1,3-thiazol-2-yl)-4,5-dihydro-1H-imidazole]nitratocobalt(II) nitrate

L.-Y. Wang, J.-L. Chang, K. Jiang, L.-F. Ma and Y.-F. Wang

Abstract: The title crystal structure, [Co(NO₃)(C₁₀H₁₅N₃OS)₂]NO₃, consists of Co^II complex cations and NO₃^- anions, located on different twofold axes and linked to each other via O-HO hydrogen bonding. The Co^II complex assumes a distorted octahedral coordination geometry, formed by a chelating nitrate and two ImTh molecules (ImTh is 1-hydroxy-4,4,5,5-tetramethyl-2-(1,3-thiazol-2-yl)-4,5-dihydro-1H-imidazole). Within the ImTh molecule, the N-O bond distance of 1.386 (2) Å is much longer than the N-O bonds found in related complexes with the nitroxide radical.

Online 8 October 2005

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