trinuclear species. Under CO atmosphere the clean formation of [ReH(CO)5] and [Re3H(μ-H)(CO)13]- has been recognized. The anion 2 is formed (even if in lower yields) also by reaction of [Re2H2(μ-H)(CO)8]- with “Re2(CO)9(THF)”, obtained by treatment of [Re2(CO)10] with Me3NO in THF. A 13C NMR investigation has clarified that such “Re2(CO)9(THF)” reagent is indeed a mixture of three eq-[Re2(CO)9L] species, containing
向电子不饱和配合物[Re 2(μ-H)2(CO)8 ]中快速添加[Re 2 H(CO)9 ] -可以得到阴离子[Re 4 H(μ-H)2(CO )17 ] -(2),其包含开链四核
金属骨架,如通过其[NEt 4 ] +盐的单晶X射线分析所揭示的。在固态中,三种
金属相互作用显示出交错的交错构象,而在溶液1 H和13中C NMR光谱显示了围绕三个Re-Re相互作用的构象自由度以及一个动态过程,该过程交换了与末端H 2 Re(CO)4部分结合的两个
氢化物以及羰基的反式交换(E a = 48(1 )kJ / mol)。H 2 Re(CO)4片段围绕两个反式双轴羰基的挡风
玻璃刮
水器运动,类似于先前在相关阴离子[Re 3 H(μ-H)(CO)13 ] -和[Re 2中观察到的H 2(μ-H)(CO)8 ] -,很可能负责此次交流。溶液中阴离子2的四
金属骨架容易分裂成三核物质。下CO气氛中的洁净的形成[则热(CO)5