hydrogen bonded to an OTf− counterion. [CpW(CO)3(H)2]+OTf− and [Cp*W(CO)3(H)2]+OTf− were formed by protonation of CpW(CO)3H and Cp*W(CO)3H. Protonation of the phosphine-substituted tungsten hydrides CpW(CO)2(PR3)H (R = Me, Cy, Ph) by HOTf or [H(Et2O)2]+ BAr‘4− (Ar‘ = 3,5-bis(trifluoromethyl)phenyl) gives dihydrides [CpW(CO)2(PR3)(H)2]+ which were isolated and fully characterized. The structure of [CpW(CO)2(PMe3)(H)2]+OTf−
Cp *
OS(CO)2 H在CD 2 Cl 2溶液中被
三氟甲磺酸(HOTf)质子化,得到二酐[Cp *
OS(CO)2(H)2 ] + OTf的平衡混合物(87:13)-和二
氢复杂的[Cp *
OS(CO)2(η 2 -H 2)] +光学传递函数- 。这些质子化物质的酸度大致可与HOTf相媲美,因为仅观察到部分质子化,例如,当1.2当量的HOTf时,质子化率为36%。在不存在酸的情况下,Cp *
OS(CO)2的
氢化物配体的T 1H在-80°C下为5.9 s。当所有的Cp *
OS(CO)的2 H由过量HOTf质子化,所述Ť 1(-80℃)的末端
氢化物配体的[Cp *
OS(CO)2(H ^)2 ] +光学传递函数-是2.8 S,而Ť 1的二
氢配体的[Cp *
OS(CO)2(η 2 - ħ 2)] +光学传递函数-是19毫秒(-80℃)。Cp *
OS(CO)2的
OS-H共振的T 1观