Acta Cryst. (2008). E64, m1634  [ doi:10.1107/S1600536808039561 ]

Diaquasodium(I) perchlorate bis[-2-(carboxylatomethyliminomethyl)phenolato]bis[(3-methylpyridine)copper(II)]

X. Wen, Y. Liu and Z. Li

Abstract: In the title compound, [Na(H₂O)₂]ClO₄·[Cu₂(C₉H₇NO₃)₂(C₆H₇N)₂], the Cu^II atom is coordinated by one N atom and two O atoms from a tridentate N-salicylideneglycinate Schiff base dianion and one N atom from a 3-methylpyridine ligand. Longer CuO contacts [2.680 (2) Å] complete an approximate square-based pyramidal coordination geometry around Cu^II, forming a dimeric complex across a centre of inversion. The dimeric complexes form stacks along the a axis, with CuO contacts of 3.332 (2) Å between them. The Na⁺ cations and perchlorate anions lie on twofold rotation axes between the stacks. The former are coordinated by two disordered water molecules (each with half-occupancy), and form NaO contacts of 3.698 (3) Å to the perchlorate anions and Na contacts to neighbouring salicylideneglycinate ligands [shortest NaC = 3.516 (3) Å].

Online 29 November 2008

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