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Involving Synergy of Green Light and Acidic Responses in Control of Unimolecular Multicolor Luminescence
Author(s) -
Zhou Yunyun,
Zhu Liangliang
Publication year - 2018
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.201801731
Subject(s) - photoisomerization , luminescence , protonation , photochemistry , green light , moiety , excited state , chromophore , chemistry , blue light , materials science , optoelectronics , isomerization , physics , stereochemistry , organic chemistry , ion , catalysis , nuclear physics
Conversion of multicolor luminescence is one of desirable goals in study and development of next‐generation molecular emitters, whereas involving visible light into the control of the above‐mentioned ability has been poorly addressed due to the need of a relatively complicate molecular design. In this work, we present a novel dyad with a linkage of 4‐piperazinyl‐1,8‐naphthalimide and cyanostyryl‐modified azulene moiety, upon which the luminescence signal can be orthogonally controlled by protonation and green light irradiation. The superior features of the protonation induced excited state energy alteration, followed by green light driven photoisomerization led to a progressive luminescent color conversion among blue, yellow and green at the single molecular level. This strategy may bring in novel insights for preparing advanced function‐integrated optoelectronic materials.