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Abstract 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.
Han et al. (2019) studied this question.
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