Unexpected Macrocyclic Multinuclear Zinc and Nickel Complexes that Function as Multitasking Catalysts for CO 2  Fixations | Zendy

Takaishi Kazuto | Zendy; Nath Bikash Dev | Zendy; Yamada Yuya | Zendy; Kosugi Hiroyasu | Zendy; Ema Tadashi | Zendy

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Unexpected Macrocyclic Multinuclear Zinc and Nickel Complexes that Function as Multitasking Catalysts for CO 2 Fixations

Author(s) -

Takaishi Kazuto,

Nath Bikash Dev,

Yamada Yuya,

Kosugi Hiroyasu,

Ema Tadashi

Publication year - 2019

Publication title -

angewandte chemie

Language(s) - English

Resource type - Journals

eISSN - 1521-3757

pISSN - 0044-8249

DOI - 10.1002/ange.201904224

Subject(s) - chemistry , bimetallic strip , catalysis , formylation , zinc , nickel , ring (chemistry) , crystallography , stereochemistry , medicinal chemistry , polymer chemistry , organic chemistry

Unique self‐assembled macrocyclic multinuclear Zn II and Ni II complexes with binaphthyl‐bipyridyl ligands (L) were synthesized. X‐ray analysis revealed that these complexes consisted of an outer ring (Zn 3 L 3 or Ni 3 L 3 ) and an inner core (Zn 2 or Ni). In the Zn II complex, the inner Zn 2 part rotated rapidly inside the outer ring in solution on an NMR timescale. These complexes exhibited dual catalytic activities for CO 2 fixations: synthesis of cyclic carbonates from epoxides and CO 2 and temperature‐switched N ‐formylation/ N ‐methylation of amines with CO 2 and hydrosilane.

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