The Crystal Stmctures of Guanidinium Phosphonate - Acetone (1/1) and Guanidinium Phenylphosphonate - Water (1/2)

All oxygen atoms of the anions and all nitrogen atoms of the cations participate in extended hydrogen bond networks in both (CH N3)2HP03,(CH3)2CO [Pna21' a = 13.888(7), b = 9.658(4), c = 9.561(4) A, Z = 4) and (CH6N3)3rC6HsP03)' 2H20 [Ce, a = 18.51(1), b = 7.586(3), c = 12.48(1) A, P = 121.6(1)0, Z = 4]. The lattice solvent molecules are also involved in hydrogen bonding; their presence as spacers is required by the non-planarity of the anions. The N .• O distances range from 2.78 to 3.10 A. The structures were solved from photographic data, with respective resi­duals 0.055 for 723 reflections and 0.048 for 1268 reflections.t

T J R WEAKLEY ,