Directional Energy Transfer in Mixed-Metallic Copper(I)鈥揝ilver(I) Coordination Polymers with Strong Luminescence

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• 作者：Seiko Shibata ; Kiyoshi Tsuge ; Yoichi Sasaki ; Shoji Ishizaka ; Noboru Kitamura
• 刊名：Inorganic Chemistry
• 出版年：2015
• 出版时间：October 19, 2015
• 年：2015
• 卷：54
• 期：20
• 页码：9733-9739
• 全文大小：429K
• ISSN：1520-510X

文摘

Strongly luminescent mixed-metallic copper(I)鈥搒ilver(I) coordination polymers with various Cu/Ag ratio were prepared by utilizing the isomorphous relationship of the luminescent parent homometallic coordination polymers (桅_em = 0.65 and 0.72 for the solid Cu and Ag polymers, respectively, at room temperature). The mixed-metallic polymer with the mole fraction of copper even as low as 0.005 exhibits a strong emission (桅_em = 0.75) from only the copper sites as the result of the efficient energy migration from the silver to the copper sites. The migration rates between the two sites were evaluated from the dependence of emission decays upon the mole fraction of copper.