化学
激发态
聚合物
固溶体
光化学
纳米技术
无机化学
原子物理学
有机化学
物理
材料科学
作者
Masaaki Dosen,Yoshitaka Kawada,Seiko Shibata,Kiyoshi Tsuge,Yōichi Sasaki,Atsushi Kobayashi,Masako Kato,Shoji Ishizaka,Noboru Kitamura
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2019-06-10
卷期号:58 (13): 8419-8431
被引量:20
标识
DOI:10.1021/acs.inorgchem.9b00538
摘要
Luminescent silver(I) halogenido coordination polymers [Ag2X2(PPh3)2(bpy)] n (X = I, Br, Cl) have been prepared. The iodido and bromido complexes exhibit strong blue phosphorescence assignable to the 3π-π*-excited-state of bpy, whereas the chlorido complex shows luminescence thermochromism due to the π-π*-state of bpy and charge transfer from the {Ag2Cl2} core to the bpy π*-orbital. Taking advantage of their structural similarities, we prepared a series of mixed-halogenido silver(I) complexes [Ag2(X xX'(1- x))2(PPh3)2(bpy)] n (X, X' = I, Br, Cl) at varying molar fractions as solid solutions. The mixed-halogenido complexes are as strongly luminescent as their parent complexes. The detailed study of their structure and emissive properties revealed smooth energy migration between the luminescent units and modification of the luminescence properties based on the planarity of bpy.
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