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Acta Cryst. (2012). E68, m1379
[ doi:10.1107/S1600536812042754 ]

Bis([mu]-3-nitrobenzene-1,2-dicarboxylato)-[kappa]4O1,O2:O1,O1';[kappa]4O1,O1':O1,O2-bis[triaqua(6-carboxy-2-nitrobenzoato-[kappa]2O1,O6)neodymium(III)] dihydrate

Y. Chang, Z. Pei and Q. Shuai

Abstract: The title complex, [Nd2(C8H3NO6)2(C8H4NO6)2(H2O)6]·2H2O, consists of dimeric units related by an inversion center. The NdIII atom is nine-coordinated by three O atoms from water molecules and six from carboxylate atoms. The 1,2-dicarboxylate acid molecules are in a single and double deprotonation stage and exhibit two coordination modes, viz. [mu]2-([kappa]4, O1: O2: O2: O3) and [mu]1-([kappa]2, O2: O3), which are responsible for the dimeric structure framework. The dimeric structure is then assembled into a three-dimensional supramolecular framework via O-H...O hydrogen bonds.

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