This work was supported by the National Natural Science Foundation of China (Grant No. 69778022) ; the Natural Science Foundation of Liaoning Province (Grant No. 9810301001).
Supermolecular crystal composed of p-nitrophenol, hexamethylenetetramine, phosphoric acid and water was obtained by supermolecular assembly. The crystal has a centrosymmetric structure with space group P21/c. The rela...