Synthesis and crystal structure of the tetraalkylammonium salts of 1,2,3,4-tetramercapto-1,2,3,4-tetrathioxotetraphosphetane based on white phosphorus

Synthesis, IR/Raman, and quantum‐chemical structural analysis of new octathiotetraphosphetane ammonium salts

“…Using another approach, recently we have reported a new reaction of white phosphorus (P 4 ) and elemental sulfur with aliphatic mercaptans in the presence of amines 1a–c , which resulted in formation of ammonium salts of 1,2,3,4‐tetramercapto‐1,2,3,4‐tetrathioxotetraphosphetane 2a–c 5,6. Their structures determined by the X‐ray diffraction were identified as supramolecular structures formed by realization of intermolecular interactions, including NH···S and CH···S ones.…”

“…Centrosymmetric thiotetraphosphetane molecules are connected with four amine molecules by strong hydrogen bonds. From the point of view of charge distribution in crystal, the sphere‐like associates are formed 5,6.…”

New method for the synthesis of ammonium salts of O,O'-alkylenedithiophosphoric acid and octathiotetraphosphetane. Crystal structure features's of diethylammonium salt of O,O'-propylenedithiophosphoric acid

“…5 Structures of salts 2a-c were confirmed by the XRD analysis as well. 8, 9 It is relevant to note that these salts, as well as other cyclic thiophosphates, can also be obtained in reactions of white phosphorus with polysulfide polysulfides, hydrogen sulfide and amines. 6, 7 …”

“…Upon further refrigeration 0.7 g of 1,2,3,4-tetrathio-1,2,3,4-tetrathioxotetraphosphetane tetrakis(diethylammonium) salt 2a crystallized from the mother liquor within a week. Physical, analytical, and spectral data for 2a was given in previous publications 8 .…”

Recent Advances in Organic Reactions Involving Elemental Sulfur

“…The combination of white phosphorus P 4 , elemental sulfur S 8 and aliphatic secondary/tertiary amines in the presence of an external reducing agent such as thiols or 1,3‐propanediol led to octathiotetraphosphetane ammonium salts in low yields (Scheme ). The four‐membered ring structure was determined unambigously by X‐ray diffraction analysis …”