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Crystal structures, dual-state emissions and polymer-based doped room-temperature phosphorescence of 8-benzyloxyisoquinoline derivatives.
- Source :
-
CrystEngComm . 6/14/2023, Vol. 25 Issue 22, p3264-3270. 7p. - Publication Year :
- 2023
-
Abstract
- A series of new 8-benzyloxyisoquinoline derivatives are designed and synthesized based on the 4H-pyran chemistry. These compounds have twisted molecular conformations and loose packing modes according to their crystal structures, and thus exhibit outstanding dual-state emissions. Importantly, using cheap and easily available polymethyl methacrylate (PMMA) as the host molecule and the isoquinoline derivatives as the guest molecules, the resultant two-component doped materials show green or orange room-temperature phosphorescence (RTP) activities with delayed lifetimes of 72–106 ms, which originate from the guest molecule through the suppression of non-radiative transitions of excited triplet excitons by the rigid microenvironment provided by the PMMA polymer. This result provides a valuable reference for developing isoquinoline-based solid-state luminescent materials with dual-state emissions and RTP properties. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14668033
- Volume :
- 25
- Issue :
- 22
- Database :
- Academic Search Index
- Journal :
- CrystEngComm
- Publication Type :
- Academic Journal
- Accession number :
- 164109488
- Full Text :
- https://doi.org/10.1039/d3ce00231d