Crystal structure of new carboxylate phosphabetaines and phosphonium salts conjugated with them

Аннотация

Earlier unknown crystalline forms of three carboxylate phosphabetaines and conjugated with them phosphonium salts differing by β substituent with respect to the carboxylate group were studied. The structure of studied compounds in crystal is determined by intermolecular electrostatic interactions. This leads to the trans arrangement of the carboxylate and the phosphonium groups.