1H-, 13C-UND 31P-NMR-SPEKTROSKOPISCHE UNTERSUCHUNGEN AN BIS-(DIALKOXYTHIOPHOSPHORYL)-UND-(DIALKOXYPHOSPHORYL)-SULFANEN UND-POLYSULFANEN

摘要: Abstract Compounds of the following structure (R1O)2(X)P[sbnd]Y–P(X)(OR2)2 (X = O, Y Sn (n 1–4), R1 R2 Me, iPr; X S, R1, Et, iPr, iBu; S-Se-S, S-Te-S, Me were prepared and their NMR spectra analysed. Depending on number sulfur atoms, bonded between phosphorus typical ranges P-P coupling constants found for different sulfanes investigated: 2JPP from-10 to-20 Hz, 3JPP less than 3 4JPP from +10 to +13 Hz 5JPP 1 Hz. For small vicinal relatively large values possibilities interpretation are given.