Detail publikace
Fluorescent Rotary Switches: Four- vs Three-Substituted Phthalimide Boron Difluoride Schiff Base Complexes
YORDANOV, D. SMOLKA, R. NAKASHIMA, K. HIRASHIMA, S. MATSUSHIMA, Y. VALA, M. KRAJČOVIČ, J. WEITER, M. MIURA, T. GEORGIEV, A.
Originální název
Fluorescent Rotary Switches: Four- vs Three-Substituted Phthalimide Boron Difluoride Schiff Base Complexes
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
The influence of the substitution pattern in phthalimide boron difluoride Schiff base complexes as fluorescent molecular rotors has been investigated. Due to their ground-state zwitterionic structures, they have exhibited negative solvatochromism in absorption and blue-green emission with moderate to satisfactory photoluminescence quantum yields in solution. Ground-state and excited-state theoretical calculations and time-resolved emission spectroscopy revealed that the excited-state rotation is triggered by planar-induced charge transfer, resulting in switched emission toward the green region. Fluorescence lifetime measurements and species-associated emission spectra exhibited two emitting excited species in equilibrium via a planar transition-state barrier. The substitution pattern models showed different behavior in solid-state mechanochromic switching and were analyzed by subcell unit packing obtained from X-ray structure data. We have attempted to gain in-depth insight into the fluorescence mechanism and photoluminescence properties associated with the substitution pattern of the phthalimide motif in order to understand the structure-property-function relationship.
Klíčová slova
Phthalimide; Photoluminescence; Molecular rotors; Fluorescence rotary switches; Twisting intramolecular charge transfer; Planar-induced charge transfer; Mechanochromic switching
Autoři
YORDANOV, D.; SMOLKA, R.; NAKASHIMA, K.; HIRASHIMA, S.; MATSUSHIMA, Y.; VALA, M.; KRAJČOVIČ, J.; WEITER, M.; MIURA, T.; GEORGIEV, A.
Vydáno
21. 11. 2023
Nakladatel
AMER CHEMICAL SOC
Místo
WASHINGTON
ISSN
0022-3263
Periodikum
JOURNAL OF ORGANIC CHEMISTRY
Ročník
88
Číslo
24
Stát
Spojené státy americké
Strany od
17206
Strany do
17214
Strany počet
9
URL
BibTex
@article{BUT187806,
author="YORDANOV, D. and SMOLKA, R. and NAKASHIMA, K. and HIRASHIMA, S. and MATSUSHIMA, Y. and VALA, M. and KRAJČOVIČ, J. and WEITER, M. and MIURA, T. and GEORGIEV, A.",
title="Fluorescent Rotary Switches: Four- vs Three-Substituted Phthalimide Boron Difluoride Schiff Base Complexes",
journal="JOURNAL OF ORGANIC CHEMISTRY",
year="2023",
volume="88",
number="24",
pages="17206--17214",
doi="10.1021/acs.joc.3c02056",
issn="0022-3263",
url="https://pubs.acs.org/doi/full/10.1021/acs.joc.3c02056"
}