Cruz-Enríquez Adriana, Peinado-Guevara Hector J, Reyes-Marquez Viviana, Höpfl Herbert, Campos-Gaxiola José J
Facultad de Ingenieria Mochis, Universidad Autónoma de Sinaloa, Fuente Poseidón y Prol. A. Flores S/N, CP 81223, C.U. Los Mochis, Sinaloa, México.
Acta Crystallogr Sect E Struct Rep Online. 2013 Mar 28;69(Pt 4):o591. doi: 10.1107/S160053681300754X. Print 2013 Apr 1.
In the title adduct, C5H5NO·C8H12O4, the heterocycle exists in its zwitterionic form. The cyclo-hexane ring exhibits a chair conformation with the carb-oxy-lic acid groups in equatorial and axial orientations. In the crystal, mol-ecules are linked through charge-assisted O-H⋯O(-), N(+)-H⋯O(-) and N(+)-H⋯O hydrogen bonds, and an additional series of C-H⋯O contacts, giving a pleated two-dimensional hydrogen-bonded network parallel to (-204).
在标题加合物C5H5NO·C8H12O4中，杂环以两性离子形式存在。环己烷环呈椅式构象，羧酸基团处于平伏键和直立键取向。在晶体中，分子通过电荷辅助的O—H⋯O(-)、N(+)—H⋯O(-)和N(+)—H⋯O氢键以及一系列额外的C—H⋯O接触相连，形成了一个平行于(-204)的褶皱二维氢键网络。
