A redetermination of bis(5,5′-diethylbarbiturato)bis(imidazole)cobalt(II)

Abstract

The title complex, [Co(C8H12N2O3)2(C3H4N2)2], whose structure was first determined by Wang & Craven [(1971). J. Chem. Soc. D, pp. 290–291], has been redetermined with improved precision. A crystallographic twofold rotation axis passes through the Co atom, which is tetrahedrally coordinated by two N atoms from two barbital ligands and two N atoms from two imidazole ligands. The molecules are self-assembled via intermolecular N—H...O hydrogen-bonding interactions into a supramolecular network.