501078-84-8Relevant academic research and scientific papers
Platinum and palladium imido and oxo complexes with small natural bite angle diphosphine ligands
Anandhi,Holbert, Todd,Lueng, Dennis,Sharp, Paul R.
, p. 1282 - 1295 (2003)
Treatment of L2MCl2 (M = Pt, Pd; L2 = Ph2PCMe2PPh2 (dppip), Ph2PNMePPh2 (dppma)) with AgX (X = OTf, BF4, NO3) in wet CH2Cl2 yields the dinuclear dihydroxo complexes [L2M(μ-OH)]2(X)2, the mononuclear aqua complexes [L2M(OH2)2](X)2, the mononuclear anion complexes L2MX2, or mixtures of complexes. Addition of aromatic amines to these complexes or mixtures gives the dinuclear diamido complexes [L2Pt(μ-NHAr)]2(BF4)2, the mononuclear amine complexes [L2M(NH2Ar)2](X)2, or the dinuclear amido-hydroxo complex [Pt2(μ-OH)(μ-NHAr)(dppip)2] (BF4)2. Deprotonation of the Pd and Pt amine or diamido complexes with M′N(SiMe3)2 (M′ = Li, Na, K) gives the diimido complexes [L2M(μ-NAr)]2 associated with M′ salts. Structural studies of the Li derivatives indicate association through coordination of the imido nitrogen atoms to Li+. Deprotonation of the amido-hydroxo complex gives the imido-oxo complex [Pt2(μ-O)(μ-NAr)(dppip)2]· LiBF4·LiN(SiMe3)2, and deprotonation of the dppip Pt hydroxo complex gives the dioxo complex [Pt(μ-O)(dppip)]2·LiN(SiMe3) 2·2LiBF4.
