[HTML version][PDF version][CIF][3d view][Structure Factors][Supplementary Material][CIF check Report][Issue contents]  [Open access]

[Contents scheme]

Acta Cryst. (2008). E64, m336-m337  [ doi:10.1107/S1600536808000378 ]

Poly[[[mu]2-aqua-tetraaquahexakis([mu]4-naphthalene-2,6-dicarboxylato)tetraholmium(III)] 1.75-hydrate]

F. A. Almeida Paz and J. Klinowski

Abstract: In the title compound, {[Ho4(C12H6O4)6(H2O)5]·1.75H2O}n, which is isostructural with its Tb3+- and Eu3+-containing analogues, there are four crystallographically independent Ho3+ centres, each exhibiting a highly distorted HoO8 bicapped trigonal-prismatic coordination environment. Adjacent polyhedra are interconnected via the carboxylate groups and one [mu]2-bridging water molecule, forming one-dimensional chains propagating along [100]. The naphthalene-2,6-dicarboxylate ligands further interconnect these chains into a three-dimensional framework, which has zigzag channels housing the water molecules. Two naphthalene-2,6-dicarboxylate bridging ligands have their centroids located on crystallographic centres of inversion. One water O atom has a fixed site occupancy factor of 0.75.

Online 11 January 2008


Copyright © International Union of Crystallography
IUCr Webmaster