作者:Masanori Wada、Yukiyoshi Koyama
DOI:10.1016/s0022-328x(00)87934-6
日期:1980.11
α-Methoxyvinylmetal(II) complexes of the type trans-C6Cl5M(PPhMe2)2C(OMe)CH2 (abbr. [M]C(OMe)CH2, where M = Ni, Pd, Pt) were prepared by the reaction of [M]Cl and LiC(OMe)=CH2, and were treated with perchloric acid to give cationic methyl(methoxy)carbene complexes, [M]+C(OMe)Me, ClO4−. Ethynylmetal(II) complexes, [M]CCH, were prepared by the reaction of [M]Cl, silver perchlorate and HCCH
α-Methoxyvinylmetal(II)的类型的复合物的反式-C 6氯5 M(PPhMe 2)2 C(OME)CH 2(缩写[M]C(OME)CH 2,其中M =镍,钯[M]Cl与LiC(OMe)= CH 2的反应制备Pt),并用高氯酸处理,得到阳离子甲基(甲氧基)卡宾配合物,[M] + C(OMe)我,CLO 4 - 。在三乙胺存在下,通过[M] MCl,高氯酸银和HCCH的反应制备乙炔金属(II)配合物[M]CCH,然后在甲醇存在下用高氯酸处理给出[M] + C(OMe)Me,ClO 4-(M =镍,铂)或[钯] + OH 2,CLO 4 - 。发现[M] + C(OMe)Me的相对布朗斯台德酸度为M = Ni Pd Pt。从IR,1 H NMR和13 C NMR光谱研究,该命令是在最大的σ键合的极性而言在[M]C(OME)CH的MC键解释了镍2和最大[M]