Multinuclear metal-binding ability of a carotene

作者：Horiuchi Shinnosuke; Tachibana Yuki; Yamashita Mitsuki; Yamamoto Koji; Masai Kohei; Takase Kohei; Matsutani Teruo; Kawamata Shiori; Kurashige Yuki; Yanai Takeshi; Murahashi Tetsuro

来源：Nature Communications, 2015, 6(1): 6742.

DOI：10.1038/ncomms7742

Carotenes are naturally abundant unsaturated hydrocarbon pigments, and their fascinating physical and chemical properties have been studied intensively not only for better understanding of the roles in biological processes but also for the use in artificial chemical systems. However, their metal-binding ability has been virtually unexplored. Here we report that beta-carotene has the ability to assemble and align ten metal atoms to afford decanuclear homoand heterometal chain complexes. The metallo-carotenoid framework shows reversible metalation-demetalation reactivity with multiple metals, which allows us to control the size of metal chains as well as the heterobimetallic composition and arrangement of the carotene-supported metal chains.

• 出版日期2015-4