Acta Cryst. (2008). E64, m553-m554  [ doi:10.1107/S1600536808006661 ]

Tetrakis(-2-methylbenzoato)bis[(2-methylbenzoic acid)copper(II)]

A. C. Sunil, B. C. B. Bezuidenhoudt and J. M. Janse van Rensburg

Abstract: In the title centrosymmetric dinuclear compound, [Cu₂(C₈H₇O₂)₄(C₈H₈O₂)₂], four o-toluate anions form a cage around two Cu atoms in a syn-syn configuration. Two more o-toluic acid molecules are apically bonded to the Cu atoms, which show a square-pyramidal coordination geometry. The acid H atoms are hydrogen bonded to the cage carboxyl O atoms [OO = 2.660 (2) Å]. The molecular packing forms a puckered pseudo-hexagonal close-packed layer in the (h00) plane, with soft intermolecular HH contacts (2.46-2.58 Å).

Online 14 March 2008

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