Journal
CHEMISTRY-AN ASIAN JOURNAL
Volume 11, Issue 12, Pages 1765-1769Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201600330
Keywords
luminescence; near-infrared; proton transfer ligand; sensitization; solvent effect
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Funding
- 973 Program of China [2012CB821701]
- NSFC [91222201, 21373276]
- FRF for the Central Universities [15Lgzd05]
- STPP of Guangzhou [201510010246, 201504010031]
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We report herein an unprecedented example of a luminescent Sm-III metal-organic framework (Sm-MOF), in which both the visible and near-infrared (NIR) emissions of Sm3+ ions are able to be sensitized by an excited-state intramolecular proton transfer (ESIPT) ligand. Due to the solvent-mediated interchange between enol and keto excited states of the ligand and subsequent energy transfer rate to Sm3+ ions, the luminescent decay lifetime of the Sm-MOF can be tuned in different solvent-grinding systems.
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