Poly[[bis[μ2-1,2-bis(pyridin-4-yl)ethene-κ2N:N′]bis(thiocyanato-κN)cobalt(II)] 1,2-bis(pyridin-4-yl)ethene monosolvate dihydrate]

Abstract

The asymmetric unit of the title compound, {[Co(NCS)2(C12H10N2)2]·C12H10N2·2H2O}n, consists of two independent CoII cations, four distinct thiocyanate anions, six 1,2-bis(pyridin-4-yl)ethene (4-bpe) molecules and four lattice water molecules. The CoII cations are each coordinated by two N-bonded thiocyanate anions and four 4-bpe ligands within a slightly distorted CoN6 octahedron. The two independent CoII cations are linked by the 4-bpe ligands into two distinct layers, parallel to the ac and bc planes, that interpenetrate. From this arrangement, channels are formed in which non-coordinated 4-bpe and lattice water molecules are hydrogen-bonded into chains that elongate in the c-axis direction.