Reactions between carbonylhydridotris(triphenylphosphine)iridium(I) and difluorophosphine oxide, sulphide, and selenide: identification of ionic intermediates
作者:E. A. V. Ebsworth、Philip G. Page、David W. H. Rankin
DOI:10.1039/dt9840002569
日期:——
Carbonylhydridotris(triphenylphosphine)iridium(I)(1) reacts with PF2HY (Y = O, S, or Se) at 190 K in CH2Cl2 to give [Ir(CO)H2(PPh3)3][PF2Y](2), identified by n.m.r. spectroscopy. When the solutions were allowed to warm above 220 K, PPh3 was liberated and complexes [Ir(CO)H2(PPh3)2(P′F2Y)] were formed [Y = Se, (3a); S, (3b); or O, (3c)]. Complexes (3a) and (3b) were initially produced in two isomeric