Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 55, Issue 35, Pages 10507-10511Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201604198
Keywords
alkynyl ligands; carborates; luminescence; metal-metal interactions; self-assembly
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Funding
- Deutsche Forschungsgemeinschaft (DFG) [FI 1628/3-1, STE 1834/4-1, GRK 2112]
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{Ag-2(12-C C-closo-1-CB11H11)}(n) and selected pyridine ligands have been used for the synthesis of photostable Ag-I clusters that, with one exception, exhibit for Ag-I compounds unusual room-temperature phosphorescence. Extraordinarily intense phosphorescence was observed for a distorted pentagonal bipyramidal Ag-7(I) cluster that shows an unprecedented quantum yield of Phi = 0.76 for Ag-I clusters. The luminescence properties correlate with the structures of the central Ag-n(I) motifs as shown by comparison of the emission properties of the clusters with different numbers of Ag-I ions, different charges, and electronically different pyridine ligands.
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