A NEW COPPER(II)LEAD(II) HETEROTETRANUCLEAR COMPLEX CONTAINING 2-DIMETHYLAMINOETHANOL - DIRECT SYNTHESIS AND STRUCTURE

The heterotetranuclear (CuPbII)-Pb-II complex containing 2-dimethylami noethanol has been synthesized using copper powder and PbI2 as startin g materials and characterized by X-ray crystallography. The crystal co mprises dimeric centrosymmetric molecules {Cu2Pb2[(CH3)(2)NCH2CH2O]I-4 (4)(DMSO)(2)} bridged by oxygen atoms of chelated 2-dimethylaminoethox o groups, and DMSO molecules of crystallization. The nearest copper co ordination environment has a somewhat distorted square planar geometry . The coordination geometry around the Pb atom is a highly distorted o ctahedron. The bridging oxygen atoms arrange a strictly planar central Pb2O2 rhombus in the structure of the complex. Copyright (C) 1996 Els evier Science Ltd