P. Jaikumar, T. Sundar, N. Sharmila
Mar 28, 2017
The asymmetric unit of the title cystosinium salt derivative, 2C4H6N3O+·C4H4O62−·H2O, contains two cytosinium cations, one tartaric acid anion and a water molecule. The two cytosinium cations are almost planar (r.m.s. deviations of the fitted atoms are 0.0151 and 0.0213 A). The crystal structure features C—H⋯O, N—H⋯O and O—H⋯O interactions. Further C—O⋯π and π–π interactions are observed along the ab plane, contributing to the crystal stability.