Bis(μ-3-nitro-benzene-1,2-dicarboxyl-ato)-κ(4)O(1),O(2):O(1),O(1');κ(4)O(1),O(1'):O(1),O(2)-bis-[triaqua-(6-carb-oxy-2-nitro-benzoato-κ(2)O(1),O(6))neodymium(III)] dihydrate

Yin-Cheng Chang; Zhi-Chao Pei; Qi Shuai

doi:10.1107/S1600536812042754

Bis(μ-3-nitro-benzene-1,2-dicarboxyl-ato)-κ(4)O(1),O(2):O(1),O(1');κ(4)O(1),O(1'):O(1),O(2)-bis-[triaqua-(6-carb-oxy-2-nitro-benzoato-κ(2)O(1),O(6))neodymium(III)] dihydrate

Acta Crystallogr Sect E Struct Rep Online. 2012 Nov 1;68(Pt 11):m1379. doi: 10.1107/S1600536812042754. Epub 2012 Oct 20.

Authors

Yin-Cheng Chang¹, Zhi-Chao Pei, Qi Shuai

Affiliation

¹ College of Science, Northwest A&F University, Yangling 712100, Shanxi Province, People's Republic of China.

Abstract

The title complex, [Nd(2)(C(8)H(3)NO(6))(2)(C(8)H(4)NO(6))(2)(H(2)O)(6)]·2H(2)O, consists of dimeric units related by an inversion center. The Nd(III) atom is nine-coordinated by three O atoms from water mol-ecules and six from carboxyl-ate atoms. The 1,2-dicarboxylate acid molecules are in a single and double deprotonation stage and exhibit two coord-in-ation modes, viz. μ(2)-(κ(4), O(1): O(2): O(2): O(3)) and μ(1)-(κ(2), O(2): O(3)), 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.