[HTML version][PDF version][CIF][3d view][Structure Factors][CIF check Report][Issue contents]  [Buy article online]

[Contents scheme]

Acta Cryst. (2003). E59, m165-m167  [ doi:10.1107/S1600536803005567 ]

catena-Poly[disodium [[tris(formato-[kappa]O)copper(II)]-[mu]2-formato-[kappa]2O:O']], with partial substitution of formate by acetate, Na2n[Cu(O2CH)4-x(O2CCH3)x]n (x = 0.28)

A. Golobic, K. Klancar and P. Segedin

Abstract: The structure of the title compound, Na2[Cu(CHO2)3.72(C2H3O2)0.28], is built of sodium cations and CuII complex anions; the latter are linked into infinite chains. The CuII atoms are coordinated by five O atoms belonging to five formate ligands, forming a distorted square-pyramidal coordination. Four symmetry-independent formate ligands are bonded to the Cu atom with Cu-O distances in the range 1.9370 (10)-1.9886 (8) Å. The fifth formate ligand, bonded to the CuII atom at a longer distance of 2.2889 (9) Å, forms a bridge to the neighbouring copper(II) ion which is symmetry-related to the original ion by a twofold screw axis. Thus, infinite chains are formed along the b axis. One of the terminal formate ligands is disordered; 28.4 (13)% of its sites are occupied by acetate, which was present in the starting material and was not completely displaced in the course of the reaction.

Copyright © International Union of Crystallography
IUCr Webmaster