Thermal Behavior of Pyridinium Salt of 2,4-Dimer-Capto-2,4-Dithioxo-1,3-Bis(Trimethylsilyl)-1,3-Diaza-2λ5, 4λ5-Diphosphetidine

Abstract The reaction of P4S10with PSCL3 in pyridine leads to Py.PS2Cl (1). This substance yields by the reaction with hexamethyldiailazane in molar ratio 1:l a new subatance that was identified as pyridiniwn salt of 2,4-dimercapto-2,4-dithioxo-1,3-bis(trimethylsilyl)-1,3-diaza-2λ5,4λ5-diphosphetidine (PYH)2/S2P(NSiMe3)2PS2/ (I). (2).