BIS(2,4-DIAMINOPYRIMIDINIUM) SULFATE MONOHYDRATE, 2C(4)H(7)N(4)(-.H2O().SO42)

Authors
GOMES AC BISWAS G PAIN S GHOSH S GHOSH D IITAKA Y BANERJEE A
Citation
Ac. Gomes et al., BIS(2,4-DIAMINOPYRIMIDINIUM) SULFATE MONOHYDRATE, 2C(4)H(7)N(4)(-.H2O().SO42), Acta crystallographica. Section C, Crystal structure communications, 52, 1996, pp. 2020-2022
Citations number
10
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
52
Year of publication
1996
Part
8
Pages
2020 - 2022
Database
ISI
SICI code
0108-2701(1996)52:<2020:BSM2>2.0.ZU;2-0
Abstract
The asymmetric unit of the crystal consists of one sulfate ion, one wa ter molecule and two 2,4-diamino-pyrimidine (DAP) molecules slacked pa rallel to the b direction with average perpendicular separations of 3. 310(4) and 3.343(4)Angstrom, respectively. The tilt angle between the least-squares planes of the. two DAP molecules in the asymmetric unit is 2.1(1)degrees. The structure is stabilized by stacking forces, N-H ... N hydrogen bonds and N-H ... O hydrogen bonds.