Acta Crystallographica Section E

Structure Reports Online

Volume 59, Part 11 (November 2003)

metal-organic compounds

 

Redetermination of catena-poly[bis[chloro(-pyridine N-oxide-²O:O)copper(II)]-di--chloro]

A. M. Atria, P. Cortés, M. T. Garland and R. Baggio

Abstract: The title compound, [Cu₂Cl₄(C₅H₅NO)₂]_n, is a one-dimensional polymer in which the Cu^II atoms are alternately bridged by two O atoms [CuCu = 3.2131 (10) Å] and two Cl atoms [CuCu = 3.7061 (11) Å]. The metal centers display a very distorted coordination geometry, with the four stronger bonds defining a CuCl₂O₂ polyhedron midway between square planar and tetrahedral, which serves as the base of a pyramid, while the loosely bound Cl atom in the bridge occupies the apex. The simultaneous presence of a good hydrogen-bond acceptor and an adequate C-H donor leads to a network of C-HCl interactions.

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