Acta Crystallographica Section E (Jan 2008)
Poly[methanoltetrakis[μ3-5-(4-methoxyphenyl)pyrazole-3-carboxylato(2−)]tricopper(II)disodium(I)
Abstract
The asymmetric unit of the polymeric title complex, [Cu3Na2(C11H8N2O3)4(CH4O)]n, consists of two NaI atoms, three CuII atoms, four 5-(4-methoxyphenyl)pyrazole-3-carboxylate ligands and one methanol molecule. The central CuII atom is coordinated by four N atoms from four pyrazole-3-carboxylate ligands, forming a distorted tetrahedral (CuN4) geometry, while each of the other two CuII atoms is coordinated by two O atoms and two N atoms from the two ligands, forming a slightly distorted square-planar (CuN2O2) geometry. Each of the two NaI atoms is coordinated by five O atoms, forming a distorted octahedral geometry; four O atoms are from the carboxylate groups of the three ligands and the remaining O atom is from the methoxy group of the ligand or from the methanol molecule.