complex FeH2(PP3) 3 with methanol or ethanol. The observation of H–D coupling in partially deuterated isotopomers of 1 and measurement of T1 relaxation times for the hydrido and dihydrogen resonances of 1 confirmed the presence of the η2-dihydrogen ligand. Complex 1 shows dynamic NMR behaviour in both the 31P and 1H NMR spectra with facile exchange between the protons in the η2-dihydrogen ligand and the
二
氢盐
氢基络合物[FEH(H 2)(PP 3)] + 1 (PP 3 = P(CH 2 CH 2
PME 2)3 2)通过dihydrido的质子化复杂FEH形成2(PP 3) 3与
甲醇或
乙醇。H-d耦合在部分
氘化同位素的观察1的和测量Ť 1弛豫时间的
氢基和二
氢共振1证实了η存在2 -dihydrogen
配体。综合大楼1示出了在两个动态NMR行为31 P和1 1 H NMR谱与在η的质子之间容易交换2 -dihydrogen
配体和η 1 -hydrido
配体。的二
氢配体1容易通过阴离子和中性配位体置换,得到相应的
氢基配合物[FeHX(PP 3)] + (X = CO 11,X = PPH 3 12)或FeHX(PP 3)(X =
氯13,X = Br 14,X = I 15,X = N 3 16)。少量烷
氧基
氢化物FeH(OR)(PP3)在含有1的
甲醇和
乙醇溶液中观察到(R = Me 4 ;