308341-23-3Relevant academic research and scientific papers
The first examples of isonitrile insertion into a phosphido bridge and the crystal and molecular structures of [Pt2(PBut2){/i,?;2-P(But2)C(=NAr)}(CNAr)2] and [Pt{//,i/2-P(But2)C(NHAr)}(CNAr)]2(CF3SO3)2 (Ar = p-Tolyl)
Cristofani, Serena,Leoni, Piero,Pasquali, Marco,Eisentraeger, Frank,Albinati, Alberto
, p. 4589 - 4595 (2000)
The platinum(I) dinuclear carbonyl [Pfefa-PBuMPBuHXCO)] (1) reacts with organic isonitriles RNC (R =p-tolyl, Bu*, PhCH2), yielding the mono- and disubstituted derivatives [Pt2(/(-PBut2)2(PBut2H)(CNR)] (2, R = p-tolyl; 3, R = Bu1; 4, R = PhCH2) and [PtPBu)(CNR)]2 (5, R = p-tolyl; 6, R = Bu1; 7, R = PhCH2). Only with the aromatic isonitrile does the reaction proceed through two further well-separated steps, giving [PtPBuyi/*,?/2P(But2)C(=NAr)}(CNAr)2] (8) and [Pt{/iJ?/2-P(But2)C(=NAr)}(CNAr)]2 (9). These arise from the unprecedented reversible isonitrile insertion into the M-P bonds of the phosphidobridges. When 8 or 9 are reacted with CFaSOaH, the cyclic carbenes [Pt2(/i-PBut2){/fJ7/2P(BuyCCNHAr)}(CNAr)2]CF3SO3 (10) and [Pt(//,r/2-P(But2)C(NHAr)}(CNAr)]2 (CF3SO3)2 (11) are respectively formed. The crystal and molecular structures of complexes 8 and 11 were solved by X-ray diffraction.
