Bis(phosphinomethyl)phenylamines and bis(phosphinomethyl)sulfides and their reaction with d8-platinum group precursors
作者:Marc Stickel、Caecilia Maichle-Moessmer、Lars Wesemann、Hermann A. Mayer
DOI:10.1016/j.poly.2012.07.083
日期:2012.10
The potentially tridentate phosphines R2PCH2XCH2PR2 [X = NPh, R = Ph (1), Bu-t (2), Cy (3), X = S, R = Ph (4), Bu-t (5)] were treated with different Pd(II), Pt(II) as well as Rh(I) and Ir(I) complex precursors. All new palladium and platinum compounds are formed as cis bisphosphine complexes. This is also the case if the sterically demanding phosphines 2 and 3 are treated with MCl(CO)(PPh3)(2) while the comparable reaction with 1 generates trigonal bipyramidal complexes. In contrast to this the reaction of 5 with Ir(CO)(2)Cl(p-TolNH(2)) forms the macrocycle 5b. All new compounds have been characterized by H-1, C-13, P-31 NMR and IR spectroscopy. Single crystal X-ray analysis has been performed from most of the compounds as well. (C) 2012 Elsevier Ltd. All rights reserved.