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Dynamic B/N Lewis Pairs: Insights into the Structural Variations and Photochromism via Light-Induced Fluorescence to Phosphorescence Switching
- Source :
- Angewandte Chemie (International ed. in English). 61(51)
- Publication Year :
- 2022
-
Abstract
- Ultralong afterglow emissions due to room-temperature phosphorescence (RTP) are of paramount importance in the advancement of smart sensors, bioimaging and light-emitting devices. We herein present an efficient approach to achieve rarely accessible phosphorescence of heavy atom-free organoboranes via photochemical switching of sterically tunable fluorescent Lewis pairs (LPs). LPs are widely applied in and well-known for their outstanding performance in catalysis and supramolecular soft materials but have not thus far been exploited to develop photo-responsive RTP materials. The intramolecular LP M1BNM not only shows a dynamic response to thermal treatment due to reversible N→B coordination but crystals of M1BNM also undergo rapid photochromic switching. As a result, unusual emission switching from short-lived fluorescence to long-lived phosphorescence (rad-M1BNM, τ
- Subjects :
- General Medicine
General Chemistry
Catalysis
Subjects
Details
- ISSN :
- 15213773
- Volume :
- 61
- Issue :
- 51
- Database :
- OpenAIRE
- Journal :
- Angewandte Chemie (International ed. in English)
- Accession number :
- edsair.doi.dedup.....132610879598aa5c88a9c8ed370f3d09