Clark, J.; Shahhet, M. S.; Korakas, D., Journal of Heterocyclic Chemistry, 1993, vol. 30, # 4, p. 1065 - 1072
作者:Clark, J.、Shahhet, M. S.、Korakas, D.、Varvounis, G.
DOI:——
日期:——
10-Ethyl-4-oxo-2,3,4,10-tetrahydropyrimido[4,5-<i>b</i>]quinolin-2-iminium 4-toluenesulfonate: a polarized electronic structure in the cation and a hydrogen-bonded sheet structure
作者:Jorge Trilleras、Jairo Quiroga、John N. Low、Justo Cobo、Christopher Glidewell
DOI:10.1107/s0108270108016995
日期:2008.7.15
In the title compound, C13H13N4O+ center dot C7H7O3S- , the bond distances within the cation provide evidence for the delocalization of the positive charge in a manner reminiscent of guanidinium cations. Three independent N-H center dot center dot center dot O hydrogen bonds link the ions into centrosymmetric four-ion aggregates, and these are further linked into sheets by a single C-H center dot center dot center dot O hydrogen bond. This study shows how a single hydrogen bond can link centrosymmetric entities into a continuous sheet structure.