Konzentrationen von Isomeren des Typs PmAs4−mX3in P4S3-As4S3- und P4Se3-As4Se3-Mischungen

摘要

The reactions of P4S3with As4S3and of P4Se3with As4Se3in the molten state yields molecules of the type PmAs4−mS3and PmAs4−mSe3, respectively. A method was developed to separate the different components by the HPLC technique, and to determine their concentrations. The identification of the isomers in the HPLC pattern was achieved with the aid of the LC-MS method. In the selenium system, the distribution of the different species is statistical. In the system P4S3-As4S3, the formation of PAs3S3with one phosphorus atom in the apical position is favou