vinylidene ligand which is formally σ-bound to the two molybdenum atoms and π-bound to the ruthenium. Low to moderate yields of the blue-turquoise hexanuclear bis(alkylidyne) clusters Mo2Ru4(μ3-CR1)(μ3-CR2)(CO)12Cp2 (3a−d) are formed in addition to the vinylidene clusters, especially if the reaction is carried out in heptane. The synthesis of 3a is particularly noteworthy, as it represents the first example
所述dimolybdenum炔络合物Mo的反应2(CO)4(μ-R 1 c ^⋮CR 2)的CP 2(CP =η-C 5 H ^ 5 ; R 1 = H,R 2 = H,Me中的pH值,CO 2我; 1A - d)用的Ru 3(CO)12在回流的
甲苯或
庚烷,得到橙色的合理产率μ 3个-vinylidene簇[沫2的Ru(μ 3 -C CHR 2)(CO)7的CP 2 ](2a - d)。沫的晶体结构2的Ru(μ 3 -C C
HME)(CO)7的CP 2(图2b)已经确定并示出了
金属三角形由偏二
配体,其正式σ键合到两个
钼原子加盖并π结合到
钌上。低到蓝绿松石六核双(次烷基)簇的中等产率的Mo 2的Ru 4(μ 3 -CR 1)(μ 3 -CR 2)(CO)12的CP 2(图3a - d除了亚
乙烯基团簇以外,还可以形成),特别是如果反应在
庚烷中进行的话。3a的合成特别值得注意,因为它代表了
乙炔断