Coinage Metal Complexes of Phosphonite Analogues of 2-Diphenylphosphino-1,1′-binaphthyl (H-MOP) and 2-Diphenylphosphino-2′-methoxy-1,1′-binaphthyl (MeO-MOP)

Chiral MOP-phosphonites containing two phenoxy substituents (S)-1a/(R)-1b, a biphenoxy group (S)-2a/(R)-2b or the 3,3'-dimethylbiphenoxy group (S)-3a/(R)-3b, have been coordinated to the coinage metals. Six [Au(L-P)Cl] complexes have been prepared and five were characterised by X-ray crystallography, as well as complex [Au{(S)-3a}(2)]SbF6. Six [Ag(L-P)OTf] complexes were synthesised, studied by VT NMR spectroscopy and, in the case of [Ag{(R)-2b} OTf], by X-ray crystallography. Six [Cu(L-P)(MeCN)(2)]PF6 complexes were prepared, and [Cu{(R)-3b}(MeCN)(2)]PF6 was characterised crystallographically, as was the decomposition product [Cu{(S)-1a}(O2PF(2))](2).