The remarkably distinct reactivity of hydridozinc heterobimetallic cubanes [(HZnOtBu)4−n(thf·LiOtBu)n] 1a–1d towards CO2 is reported—the hydride transfer from Zn–H to CO2 is drastically accelerated in the presence of Li ions in 1b–1d which led to the respective metal formate hydrates; the systems are inspiring models for the selective conversion of water gas into formates on lithium-promoted ZnO supports.
氢化锌杂双
金属
立方烷[(HZnOtBu)4−n(thf·LiOtBu)n] 1a–1d对
CO2的反应性非常显著——在1b–1d中,在Li离子存在的情况下,从Zn–H到 的
氢化物转移被大大加速,从而分别形成了
金属
甲酸盐
水合物;这些体系是
锂促进的ZnO载体上
水气选择性转化为
甲酸盐的启发模型。