Acta Crystallographica Section E (Jul 2009)
4-(6-Fluoro-1,2-benzisoxazol-3-yl)-1-[2-(2-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-3-yl)ethyl]piperidinium nitrate
Abstract
In the risperidone cation of the title compound, C23H28FN4O2+·NO3−, the piperidine ring adopts a chair conformation and the tetrahydropyridine ring is disordered over two orientations in a 0.620 (11):0.380 (11) ratio. N—H...O, C—H...O and C—H...F hydrogen bonds are present in the crystal structure.