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Phenothiazinyl Boranes: A New Class of AIE Luminogens with Mega Stokes Shift, Mechanochromism, and Mechanoluminescence
Author(s) -
Arivazhagan C.,
Maity Arunava,
Bakthavachalam K.,
Jana Arijit,
Panigrahi Suraj Kumar,
Suresh Eringathodi,
Das Amitava,
Ghosh Sundargopal
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201700187
Subject(s) - mechanoluminescence , moiety , boranes , photochemistry , mega , stokes shift , chemistry , fluorescence , materials science , boron , stereochemistry , organic chemistry , optoelectronics , physics , phosphor , optics , astronomy
Phenothiazines with a dimesityl boron moiety, a new class of aminoboranes with B−N linkage, were synthesized. These aminoboranes exhibited interesting photophysical behavior including aggregation‐induced emission (AIE), mechanochromism (MC), mechanoluminescence (ML), and a mega Stokes shift (up to 312 nm in hexane). The solid‐state emission of the aminoboranes could be switched reversibly by grinding–fuming processes. Furthermore, the phenothiazine derivative with a bromo and an arylborane group at 3‐ and 7‐positions exhibited bright mechanoluminescence.