Luminescent Dinuclear Copper(I) Complexes Bearing an Imidazolylpyrimidine Bridging Ligand

被引：41

作者：

Li, Chenfei ^{[1
]}

Li, Wenbo ^{[2
]}

Henwood, Adam F. ^{[1
]}

Hall, David ^{[1
,3
]}

Cordes, David B. ^{[1
]}

Slawin, Alexandra M. Z. ^{[1
]}

Lemaur, Vincent ^{[3
]}

Olivier, Yoann ^{[3
,4
,5
]}

Samuel, Ifor D. W. ^{[2
]}

Zysman-Colman, Eli ^{[1
]}

机构：

[1] Univ St Andrews, Organ Semicond Ctr, EaStCHEM Sch Chem, St Andrews KY16 9ST, Fife, Scotland

[2] Univ St Andrews, SUPA Sch Phys & Astron, Organ Semicond Ctr, St Andrews KY16 9SS, Fife, Scotland

[3] Univ Mons, Lab Chem Novel Mat, B-7000 Mons, Belgium

[4] Univ Namur, Namur Inst Struct Matter, Unite Chim Phys Theor & Struct, B-5000 Namur, Belgium

[5] Univ Namur, Namur Inst Struct Matter, Lab Phys Solide, B-5000 Namur, Belgium

来源：

INORGANIC CHEMISTRY | 2020年 / 59卷 / 20期

基金：

英国工程与自然科学研究理事会;

关键词：

ACTIVATED DELAYED FLUORESCENCE; PHOTOINDUCED ELECTRON-TRANSFER; CU(I) COMPLEXES; GAP;

D O I：

10.1021/acs.inorgchem.0c01866

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis and photophysical study of two dinuclear copper(I) complexes bearing a 2-(1H-imidazol-2-yl)pyrimidine bridging ligand are described. The tetrahedral coordination sphere of each copper center is completed through the use of a bulky bis(phosphine) ligand, either DPEphos or Xantphos. Temperature-dependent photophysical studies demonstrated emission through a combination of phosphorescence and thermally activated delayed fluorescence for both complexes, and an intense emission (Phi(PL) = 46%) was observed for a crystalline sample of one of the complexes reported. The photophysics of these two complexes is very sensitive to the environment. Two pseudopolymorphs of one of the dinuclear complexes were isolated, with distinct photophysics. The emission color of the crystals can be changed by grinding, and the differences in their photophysics before and after grinding are discussed.

引用

页码：14772 / 14784

页数：13

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