意外的大环多核锌和镍配合物，可作为用于CO固定的多任务催化剂。
Unexpected Macrocyclic Multinuclear Zinc and Nickel Complexes that Function as Multitasking Catalysts for CO Fixations.
作者信息
Takaishi Kazuto, Nath Bikash Dev, Yamada Yuya, Kosugi Hiroyasu, Ema Tadashi
机构信息
Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan.
出版信息
Angew Chem Int Ed Engl. 2019 Jul 15;58(29):9984-9988. doi: 10.1002/anie.201904224. Epub 2019 Jun 7.
Unique self-assembled macrocyclic multinuclear Zn and Ni complexes with binaphthyl-bipyridyl ligands (L) were synthesized. X-ray analysis revealed that these complexes consisted of an outer ring (Zn L or Ni L ) and an inner core (Zn or Ni). In the Zn complex, the inner Zn part rotated rapidly inside the outer ring in solution on an NMR timescale. These complexes exhibited dual catalytic activities for CO fixations: synthesis of cyclic carbonates from epoxides and CO and temperature-switched N-formylation/N-methylation of amines with CO and hydrosilane.
合成了具有联萘基联吡啶配体（L）的独特自组装大环多核锌和镍配合物。X射线分析表明，这些配合物由一个外环（Zn L或Ni L）和一个内核（Zn或Ni）组成。在锌配合物中，溶液中的内锌部分在外环内以核磁共振时间尺度快速旋转。这些配合物对CO固定表现出双重催化活性：由环氧化物和CO合成环状碳酸酯，以及胺与CO和硅烷的温度切换N-甲酰化/N-甲基化反应。
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