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

Bis(-3-nitrobenzene-1,2-dicarboxylato)-⁴O¹,O²:O¹,O^1';⁴O¹,O^1':O¹,O²-bis[triaqua(6-carboxy-2-nitrobenzoato-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 Nd^III 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-HO hydrogen bonds.

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

Y. Chang, Z. Pei and Q. Shuai

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