research communications
Open access
The title compound possesses crystallographically imposed twofold symmetry with two C atoms lying on the rotation axis and has a non-coplanarly accumulated aromatic-rings structure. In the crystal, C—HO=C hydrogen bonds between the benzene rings and the carbonyl groups and C—HO=N hydrogen bonds between the benzene rings and the nitro groups are observed; these C—HO hydrogen bonds link the molecules, forming a three-dimensional structure.
organic compounds
Open access
In the crystal structure of the title compound, C5H14NO4P·H2O, the zwitterionic phosphocholine molecules are connected by an O—HO hydrogen bond between the phosphate groups, forming a zigzag chain along the b-axis direction. The chains are further connected through O—HO hydrogen bonds involving water molecules, forming a layer parallel to (101). Three and one C—HO interactions are also observed in the layer and between the layers, respectively. The conformation of the N—C—C—O backbone is gauche with a torsion angle of −75.8 (2)°