Acta Cryst. (2012). E68, m1173
[ doi:10.1107/S1600536812034538 ]

catena-Poly[[[(5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-⁴N)nickel(II)]--oxido-[dioxidotungstate(VI)]--oxido] tetrahydrate]

G.-C. Ou, X.-Y. Yuan and Z.-Z. Li

Abstract: In the title compound, {[NiWO₄(C₁₆H₃₆N₄)]·4H₂O}_n, the Ni^II ion lies on an inversion center and is octahedrally coordinated by four N atoms of the tetradentate macrocyclic 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane (L) ligand in the equatorial plane and two O atoms of [WO₄]^2- anions in axial positions. Each [WO₄]^2- anion bridges two adjacent [NiL]²⁺ cations, forming a chain along [001]. The chains are further connected via N-HO, O-HO and C-HO hydrogen-bonding interactions, generating a three-dimensional structure.

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