SYNTHESIS AND VIBRATIONAL AND MASS-SPECTRA OF PH(3)SNO(2)PME(2), PH(3)SNO(2)PMEPH AND PH(3)SNO(2)PPH(2)

The reactions of (Ph(3)Sn)(2)O with PhMePOCl and with Ph(2)POCl lead to Ph(3)SnO(2)PMePh and Ph(3)SnO(2)PPh(2), respectively. Ph(3)SnO(2)PMe(2) has been prepared from the reaction of (Ph(3)Sn)(2)O and Me(2)PO(2)H in toluene. The IR and Raman spectra of Ph(3)SnO(2)PMe(2), Ph(3)SnO(2)PMePh and Ph(3)SnO(2)PPh(2) are found to be consistent with polymeric structures with pentacoordinated tin atoms. The EI mass spectra indicate that the principal fragmentation processes of Ph(3)SnO(2)PRR' (RR' = Me(2), MePh, Ph,) appear to occur by loss of phenyl radicals from tin and by elimination of the entire diorganophosphinate group.