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- Title
Structure Determination of Alkynyl‐Protected Gold Nanocluster Au<sub>22</sub>(<sup>t</sup>BuC≡C)<sub>18</sub> and Its Thermochromic Luminescence.
- Authors
Han, Xu‐Shuang; Luan, Xinqi; Su, Hai‐Feng; Li, Jiao‐Jiao; Yuan, Shang‐Fu; Lei, Zhen; Pei, Yong; Wang, Quan‐Ming
- Abstract
An alkynyl‐protected gold nanocluster, Au22(tBuC≡C)18 (1), has been synthesized and its structure has been determined by single‐crystal X‐ray diffraction. The molecular structure consists of a Au13 cuboctahedron kernel and three [Au3(tBuC≡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.
- Subjects
DELAYED fluorescence; MOLECULAR structure
- Publication
Angewandte Chemie, 2020, Vol 132, Issue 6, p2329
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201912984