METHYL-6H-PYRIMIDO[1,6-ALPHA]PYRIMIDINE-6,8-DIONE)

Authors
KETTMANN V BOZOOVA A RYBAR A
Citation
V. Kettmann et al., METHYL-6H-PYRIMIDO[1,6-ALPHA]PYRIMIDINE-6,8-DIONE), Acta crystallographica. Section C, Crystal structure communications, 51, 1995, pp. 1861-1864
Citations number
14
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
51
Year of publication
1995
Part
9
Pages
1861 - 1864
Database
ISI
SICI code
0108-2701(1995)51:<1861:M>2.0.ZU;2-O
Abstract
The structure determination of C16H20N6O4S, has shown that the molecul e consists of two fused-ring systems joined by an S atom. Each ring sy stem is nearly planar except for one sp(3) C atom. The mean S-C distan ce [1.730 (3) Angstrom] represents a bond order of 1.5. The bonding pa ttern of the pyrimidine-2,6-dione moiety is analysed in detail and com pared with that of analogous compounds. The molecule is stabilized by intramolecular hydrogen bonds, while the intermolecular packing is gov erned by van der Waals forces.