39350-99-7Relevant articles and documents
Two new phosphorus sulfides
Nowottnick, Heike,Blachnik, Roger
, p. 1966 - 1968 (2008/10/08)
Jason [1] prepared by the reaction of triphenylantimony sulfide with α-P4S5 and α-P4S7 new phosphorus sulfides. The application of this method on α-P4S4 yielded the main product γ-P4/
The Molecular Composition of Solidified Phosphorus-Sulfur Melts and the Crystal Structure of β-P4S6
Blachnik, Roger,Peukert, Ulrike,Czediwoda, Anette,Engelen, B.,Boldt, K.
, (2008/10/08)
Phosphorus sulfur melts were annealed for one week at 673 K and then quenched in ice water. The solids were dissolved in CS2 and the concentrations of phosphorus sulfides were determined by (31)P NMR spectroscopy. Samples containing between 44 ant 70 mol% sulfur dissolved completely in CS2. Between 0 and 42 mol% remains an insoluble residue of red phosphorus. Above 72 mol% it consisted of sulfur chains linked by phosphorus atoms. The solutions contained mainly the congruently melting compounds P4S3,P4S7, and P4S10 having maximum concentrations at their stoichiometric c ompositions. Other compounds P4Sn (n=4-9) which decompose on heating, according to the phase diagram, were also found in surprisingly high concentrations. One of these was β-P4S6 which crystallizes in the monoclinic space group P21/C with the lattice parameters a=702.4(2), b=1205.6(2), c=1148.9(6) pm, and β=103.4(2)° Reaction of white phosphorus with sulfur was also investigated. In contrast to the results of previous authors, who described the system P4-S8 below 373 K as eutectic,we found that the elements reacted below this temperature.
