Concentrations of Isomers of Type PmAs4-mX3 in P4S3-As4S3 and P4Se3-As4Se3 Mixtures

Article abstract of DOI:10.1007/BF00809203

The reactions of P4S3 with As4S3 and of P4Se3 with As4Se4 in the molten state yields molecules of the type PmAs4-mS3 and 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 PAs3S3 with one phosphorus atom in the apical position is favoured. - Keywords: HPLC study of P4S3-As4S3 and P4Se3-As4Se3 mixtures; Constitution isomers of phosphorus arsenic chalcogenides; Equilibrium constants of phosphorus-arsenic exchange reactions