[μ-N,N,N′,N′-Tetrakis(pyridin-2-ylmethyl)butane-1,4-diamine]bis[(dimethanol-κO)(perchlorato-κO)copper(II)] bis(perchlorate)

Abstract

The binuclear cation of the title compound, [Cu2(ClO4)2(C28H32N6)(CH3OH)4](ClO4)2, is located on an inversion centre. The CuIIatom adopts a distorted octahedral coordination geometry due to the Jahn–Teller effect. The equatorial plane consists of one methanol molecule and three N atoms from theN,N,N′,N′-tetrakis(pyridin-2-ylmethyl)butane-1,4-diamine ligand. The Cu—N bond lengths are in the range 1.975 (3)–2.041 (2) Å and the Cu—O bond length is 2.008 (2) Å. The axial coordination sites of the CuIIatom are occupied by the O atoms of one methanol molecule and one perchlorate anion, with Cu—O bond lengths of 2.385 (3) and 2.565 (3) Å, respectively. In the crystal, the cations and the perchlorate anions are connectedviaO—H...O hydrogen bonds. In addition, weak C—H...O interactions stabilize the structure.