Figure 5From: R22(8) motifs in Aminopyrimidine sulfonate/carboxylate interactions: Crystal structures of pyrimethaminium benzenesulfonate monohydrate (2:2:1) and 2-amino-4,6-dimethylpyrimidinium sulfosalicylate dihydrate (4:2:2)Hydrogen-bonding patterns involving carboxylate/sulfonate groups in compound 2 (I, II, IV and VI indicates hydrogen bonded motifs).Back to article page