Research Article: 2,2′,2′′,2′′′-(1,4-Phenyl­enedinitrilo)­tetra­acetic acid dihydrate

Date Published: June 01, 2012

Publisher: International Union of Crystallography

Author(s): Juanzhi Yan, Ling Ma, Miaoli Zhu, Xiangdong Zhang, Chunhua Ge.

http://doi.org/10.1107/S1600536812019095

Abstract

In the title compound, C14H16N2O8·2H2O, the complete organic molecule is generated by crystallographic inversion symmetry. The dihedral angles between the aniline ring and the acetic acid groups are almost identical, viz. 82.61 (7) and 80.33 (7)°. In the crystal, O—H⋯O hydrogen bonds link the organic mol­ecules and water mol­ecules, forming zigzag chains the c axis. An intra­molecular O—H⋯O hydrogen bond is also observed.

Partial Text

For the crystal structures of metal complexes of the title compound, see: González et al. (1997 ▶); Hao, Li, Chen & Zhang (2006 ▶); Hao, Li, Chen, Zhang et al. (2006 ▶ ▶); Zhang et al. (2007 ▶). For synthetic details, see: Zhang et al. (2007 ▶).

Source:

http://doi.org/10.1107/S1600536812019095