Poly[diaqua(μ6-benzene-1,2,4,5-tetracarboxylato)(μ6-2,5-dicarboxybenzene-1,4-dicarboxylato)dilanthanum(III)]
First published: 14 May 2004
Yuan-Gen Yao, e-mail: [email protected]
Abstract
The title compound, [La2(betc)(H2betc)(H2O)2]n (betc = benzene-1,2,4,5-tetracarboxylate, C10H2O4, and H2betc is 2,5-dicarboxybenzene-1,4-dicarboxylate, C10H4O4) was obtained by hydrothermal reaction. The compound possesses an infinite three-dimensional network structure. The central LaIII atom is nine-coordinate by eight carboxylate O atoms from six different organic ligands derived from H4betc (1,2,4,5-benzenetetracarboxylic acid), with La—O distances ranging from 2.439 (4) to 2.658 (4) Å, and one water molecule, with La—OW1 = 2.503 (5) Å.
