spectroscopy. In all cases, the room temperature 13C NMR measurements showed no broadening of cyano pentacarbonyl signals and, relative to tungsten complexes [Cp(CO)(PPh3)FeNCW(CO)5] (5a) and [Cp(CO)(CN-Benzyl)FeNCW(CO)5] (5b), the presence of 183W satellites of the 13CN resonances (JCW ∼ 95 Hz) at room temperature confirmed the formation of stable neutral species. The main 13C NMR spectroscopic properties of
氰基五碳羰基
金属酸
钠Na [M(CO)5(CN)](M = Cr; Mo; W)与阳离子Fe(II)络合物[Cp(CO)(L)Fe(thf)] [O 3 SCF 3 ],[L = PPh 3(1a),CN-苄基(1b),CN-2,6-Me 2 C 6 H 3(1c);
乙腈溶液中的CN-Bu t(1d),P(OMe)3(1e),P(Me)2 Ph(1f)],生成复分解产物[Cp(CO)(L)Fe(NCCH 3)] [ NCM(CO)5 ] [M = W,L = PPh 3(2a),CN-苄基(2b),CN-2,6-Me 2 C 6 H 3(2c);CN-卜吨(2D),P(OME)3(2E),P(Me)的2 Ph(上2F); M = Cr,L =(PPh 3)(3a),CN-2,6-Me 2 C 6 H 3(3c);M = Mo,L =(PPh 3)(4a),CN-2,6-Me 2 C 6 H