characterized in solution. Evolution of H2 from 4 and 5 results in the formation of the unsaturated complexes [Mn(CO)2P3]BPh4 (6) and [Mn(CO)P4]BPh4 (7), which are probably stabilized by an agostic interaction between the metal center and a C−H proton of the phosphite. Treatment of the unsaturated complexes 6 and 7 and of the triflate compounds [Mn(η1-OSO2CF3)(CO)3P2] (8) with Li+RC⋮C- gave the new acetylide
氢化物配合物MnH(CO)3 P 2(1),MnH(CO)2 P 3(2)和MnH(CO)P 4(3)(P = P(OEt)3(a),PPh(OEt)通过使MnH(CO)5种类在紫外线辐射下或在回流条件下与过量的膦反应,制得图2(b),PPh 2 OEt(c),PPh(O i Pr)2(d)。并通过IR和1 H,13确定溶液中的几何形状C和31 P NMR光谱。用HBF质子化反应4 ·的Et 2的monocarbonyls MNH(CO)P的ø 4(3)得到可分离二氢衍
生物[
锰(η 2 -H 2)(CO)p 4 ] BPH 4(5),其进行表征可变温度1 H和31 P NMR光谱,T 1测量和J HD值。热不稳定的(高于0℃)[
锰(η 2 -H 2)(CO)2 P 3 ]+(4)阳离子也可以通过二羰基
氢化物MnH(CO)2 P 3(2)的质子化来制备,并在溶液中充分表征。H 4从4和5析出导致形成不饱和配合物[Mn(CO)2