Piezochromic Tetracoordinate Boron Complex: Blue-Shifted and Enhanced Luminescence.
Angew Chem Int Ed Engl
; 61(37): e202207426, 2022 Sep 12.
Article
em En
| MEDLINE
| ID: mdl-35860924
ABSTRACT
Achieving blueshifted and enhanced emission from purely organic luminophors remains a major challenge. Herein, we report a tetracoordinate boron complex with polymorphism (Y-phase and O-phase)-dependent luminescence. Impressively, the Y-phase crystals exhibited rare piezochromic luminescent properties such as pressure-induced blue-shifted and enhanced emission. The results of theoretical and experimental tests demonstrated that this phenomenon results from the cooperative effect between the restriction of intramolecular motions and alterable charge transfer (CT) behavior during compression. This work provides an ideal model to investigate the optoelectronic properties of boron complexes. Importantly, manipulating the CT behavior through the electrophilicity of boron atoms may become a new principle for the design of piezochromic materials with blueshifted and enhanced emission.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Angew Chem Int Ed Engl
Ano de publicação:
2022
Tipo de documento:
Article