00926nas a2200169 4500008004100000245004100041210003900082260000800121300000900129490000700138520043400145100002000579700002000599700003100619700003100650856007500681 2007 eng d00aO-2-Naphthyl diphenylthiophosphinate0 aO2Naphthyl diphenylthiophosphinate cDEC a46440 v633 a
The molecule of the title compound, C10H7OP(S)(C6H5)2 or C22H17OPS, exhibits distorted tetrahedral geometry about the P atom. The P=S bond of 1.9355 (4) Å is shorter than that found in Ph3P=S [1.950 (3) Å] because the replacement of one carbon on phosphorus by oxygen increases the effective electronegativity of the P atom, thereby enhancing pπ–dπ back-donation from a lone-pair orbital of the S atom.
1 aMague, Joel, T.1 aPunji, Benudhar1 aGanesamoorthy, Chelladurai1 aBalakrishna, Maravanji, S. uhttp://library.ncl.res.in/content/o-2-naphthyl-diphenylthiophosphinate