Journal
TETRAHEDRON LETTERS
Volume 52, Issue 29, Pages 3832-3835Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2011.05.076
Keywords
Cruciform triarylborane; Highly emissive; Ratiometric; Solid state; Fluoride sensing
Categories
Funding
- National Nature Science Foundation of China [21072117, 20802041]
- Nature Science Foundation of Shandong Province [Q2008B02]
- Science Foundation of Ministry of Education of China [200804221009]
- 973 Program [2010CB933504]
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We disclosed a novel cruciform tri-coordinate organoboron compound, 2',5'-bis{[(4-dimesitylboryl)phenyl]ethynyl}-1',4'-bis[(4-N,N-diphenylamino)phenyl]-[1,1':4',1']terphenyls, which displays a characteristic intramolecular charge transfer transition and is highly emissive both in solutions and solid state. The complexation with fluoride ions induces a large blue shift in fluorescence, enabling ratiometric fluorescence sensing of fluoride. In addition, its prompt response to fluoride ions was also observed even in the solid state. (C) 2011 Elsevier Ltd. All rights reserved.
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