Structure Determination of Alkynyl‐Protected Gold Nanocluster Au 22 ( t BuC≡C) 18  and Its Thermochromic Luminescence | Zendy

Han XuShuang | Zendy; Luan Xinqi | Zendy; Su HaiFeng | Zendy; Li JiaoJiao | Zendy; Yuan ShangFu | Zendy; Lei Zhen | Zendy; Pei Yong | Zendy; Wang QuanMing | Zendy

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Structure Determination of Alkynyl‐Protected Gold Nanocluster Au 22 ( t BuC≡C) 18 and Its Thermochromic Luminescence

Author(s) -

Han XuShuang,

Luan Xinqi,

Su HaiFeng,

Li JiaoJiao,

Yuan ShangFu,

Lei Zhen,

Pei Yong,

Wang QuanMing

Publication year - 2020

Publication title -

angewandte chemie

Language(s) - English

Resource type - Journals

eISSN - 1521-3757

pISSN - 0044-8249

DOI - 10.1002/ange.201912984

Subject(s) - thermochromism , luminescence , crystallography , fluorescence , cluster (spacecraft) , quantum yield , materials science , crystal structure , single crystal , diffraction , chemistry , optoelectronics , optics , physics , organic chemistry , computer science , programming language

An alkynyl‐protected gold nanocluster, Au 22 ( t BuC≡C) 18 ( 1 ), has been synthesized and its structure has been determined by single‐crystal X‐ray diffraction. The molecular structure consists of a Au 13 cuboctahedron kernel and three [Au 3 ( t BuC≡C) 4 ] trimeric staples. The cluster 1 has strong luminescence in the solid state with a 15 % quantum yield, and it displays interesting thermochromic luminescence as revealed by temperature‐dependent emission spectra. The enhanced room‐temperature emission is characterized as thermally activated delayed fluorescence.

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