Polymeric hexaaquahexakis(mu3-2,2'-oxydiacetato)trizinc(II)digadolinium(III) dodecahydrate.
A polymeric heterometallic compound, ([Gd(2)Zn(3)(C(4)H(4)O(5))(6)(H(2)O)(6)].12H(2)O)(n), comprising zinc(II) and gadolinium(III) cations bridged by carboxylate groups from oxydiacetate ligands, is presented. The Gd(III) cations lie at sites with crystallographic 32 symmetry and display a tricapped trigonal-prism arrangement, which is defined by six carboxyl and three ether O atoms. The Zn(II) cations lie at sites with imposed 2/m symmetry and are octahedrally coordinated by four carboxyl O atoms and two apical water ligands, which form strong intramolecular hydrogen bonds. Comparison is made with the previously reported isostructural homologous copper-gadolinium complex.
Baggio
Ricardo
R
Departamento de Física, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina. baggio@cnea.gov.ar
Perec
Mireille
M
Garland
Maria Teresa
MT