N,N′-Dicarb­oxy-N,N′-dicarboxyl­ato(m-phenyl­ene)dimethanaminium monohydrate

Acta Crystallographica Section E: Crystallographic Communications

Qiang, Y.-X.¹  Zhu, S.-R.¹  Shao, M.² 

[1]Department of Chemistry, Shanghai University, Shanghai 200444, People's Republic of China

[2]Instrumental Analysis Center, Shanghai University, Shanghai 200444, People's Republic of China

DOI  :  10.1107/S1600536811013675

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

In the title inner salt, C16H20N2O8·H2O, two of four carboxyl groups are deprotonated, while the two imine groups are protonated. The two imino­diacetate groups are located on the same side of the benzene ring plane. Extensive inter­molecular O—H⋯O and N—H⋯O hydrogen bonds occur in the crystal.

【 授权许可】

CC BY