%0 Journal Article %T 2-Amino-4-methylpyrimidinium dihydrogen phosphate %A Sajesh P. Thomas %A Jyothi Sunkari %J Acta Crystallographica Section E %D 2013 %I International Union of Crystallography %R 10.1107/s160053681300648x %X A charge-assisted hydrogen-bonding network involving N!H...O and O!H...O hydrogen bonds stabilizes the crystal of the title salt, C5H8N3+,H2PO4 . The dihydrogen phosphate anions form one-dimensional chains along [100], via O!H...O hydrogen bonds. The 2-amino-4-methylpyrimidinium cations are linked to these chains by means of two different kinds of N!H...O hydrogen bonds. Neighbouring chains are linked via C!H...N and C!H...O hydrogen bonds forming two-dimensional slab-like networks lying parallel to (01-1). %U http://scripts.iucr.org/cgi-bin/paper?S160053681300648X