%0 Journal Article
%T Poly[tetraaqua-米4-bromido-di-米2-bromido-米2-hydroxido-di-米3-isonicotinato-tetra-米2-isonicotinato-tetracopper(I)dithulium(III)]
%A Guo-Ming Wang
%A Zeng-Xin Li
%A Qing-Hua Zheng
%A Hui-Luan Liu
%J Acta Crystallographica Section E
%D 2008
%I International Union of Crystallography
%R 10.1107/s1600536808028675
%X A new thulium(III)每copper(I) heterometallic coordination polymer, [Cu4Tm2Br3(C6H4NO2)6(OH)(H2O)4]n, has been prepared by a hydrothermal method. The Tm and both Cu atoms lie on mirror planes. The Tm atom is seven-coordinate with a capped distorted trigonal每prismatic coordination geometry, while the Cu atoms adopt trigonal CuBrN2 and tetrahedral CuBr3N coordination modes, respectively. The Cu atom in the trigonal coordination environment is disordered over two sites of equal occupancy. The crystal structure is constructed from two distinct units of dimeric [Tm2(米2-OH(IN)6(H2O)4] cores (IN = isonicotinate) and one-dimensional inorganic [Cu4Br3]n chains, which are linked together, forming heterometallic Cu每halide每lanthanide每organic layers.
%U http://scripts.iucr.org/cgi-bin/paper?S1600536808028675