Methods of Activating Metal Complexes for Catalysts
    5.
    发明申请
    Methods of Activating Metal Complexes for Catalysts 审中-公开
    活化金属络合物催化剂的方法

    公开(公告)号:US20140121427A1

    公开(公告)日:2014-05-01

    申请号:US14065302

    申请日:2013-10-28

    IPC分类号: B01J31/24 C07F19/00

    摘要: The present invention is directed to the activation of metal carbonyl clusters by an oxidative agent to prepare a stable metal cluster catalyst exhibiting catalytic rate enhancement. The activation comprises, for example, using oxygen for decarbonylation of carbonyl ligands and changing the oxidation state of the other ligands. In one aspect, treatment of the metal cluster catalyst under oxidative conditions in a flow reactor leads to removal of CO ligands and oxidation of bound calixarene phosphine ligands, and results in a stable activated open metal cluster that is more active for ethylene hydrogenation catalysis. The resulting metal cluster contains coordinatively unsaturated sites comprising carbonyl vacancies. In one aspect, the resulting activated open metal cluster can be used as a catalyst in a variety of chemical transformations.

    摘要翻译: 本发明涉及通过氧化剂活化金属羰基簇以制备显示出催化速率增强的稳定的金属簇催化剂。 活化包括例如使用氧来羰基配体的脱羰和改变其它配体的氧化态。 在一个方面,在流动反应器中在氧化条件下处理金属簇催化剂导致CO配体的去除和结合的杯芳烃膦配体的氧化,并且导致对于乙烯氢化催化更有活性的稳定的活化的开放金属簇。 所得到的金属簇包含具有羰基空位的配位不饱和位点。 在一个方面,所得到的活化的开放金属簇可用作多种化学转化中的催化剂。