Experimental

R factor = 0.020; wR factor = 0.046; data-to-parameter ratio = 16.9. The title complex, [Cd(C9H7O2)2(H2O)2], was obtained as an unintended product of the reaction of cadmium nitrate with hexamethylenetetramine and cinnamic acid. The CdII ion lies on a twofold rotation axis and is coordinated in a slightly distorted trigonal–prismatic environment. In the crystal, the V-shaped molecules are arranged in an interlocking fashion along [010] and O—H O hydrogen bonds link the mol-ecules, forming a two-dimensional network parallel to (001). Related literature For a previous conference report of the title compound, see: Amma et al. (1983). For related structures, see: Hosomi et al