K. Thanigaimani, P. Muthiah, D. Lynch
Nov 1, 2007
Citations
0
Influential Citations
6
Citations
Journal
Acta Crystallographica Section E-structure Reports Online
Abstract
In the title cocrystal, C6H9N3O2·C8H6O4, both carboxylic acid groups of phthalic acid form an R22(8) ring motif (through N—H...O and O—H...N hydrogen bonds) on either side of the 2-amino-4,6-dimethoxypyrimidine molecule, generating a helical chain along the b axis. This chain is interpenetrated by a centrosymmetrically related chain to which it is linked by π–π stacking [perpendicular separation 3.332 A, centroid–centroid distance 3.6424 (7) A].