Fluorescent Rotary Switches: Four- vs Three-Substituted Phthalimide Boron Difluoride Schiff Base Complexes
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F23%3APU150730" target="_blank" >RIV/00216305:26310/23:PU150730 - isvavai.cz</a>
Výsledek na webu
<a href="https://pubs.acs.org/doi/full/10.1021/acs.joc.3c02056" target="_blank" >https://pubs.acs.org/doi/full/10.1021/acs.joc.3c02056</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.joc.3c02056" target="_blank" >10.1021/acs.joc.3c02056</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Fluorescent Rotary Switches: Four- vs Three-Substituted Phthalimide Boron Difluoride Schiff Base Complexes
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
Fluorescent Rotary Switches: Four- vs Three-Substituted Phthalimide Boron Difluoride Schiff Base Complexes
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
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OECD FORD obor
10400 - Chemical sciences
Návaznosti výsledku
Projekt
<a href="/cs/project/GA19-22783S" target="_blank" >GA19-22783S: Molekulární materiály pro získávání energie: směrem k překročení limitů</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2023
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
JOURNAL OF ORGANIC CHEMISTRY
ISSN
0022-3263
e-ISSN
1520-6904
Svazek periodika
88
Číslo periodika v rámci svazku
24
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
9
Strana od-do
17206-17214
Kód UT WoS článku
001142973700001
EID výsledku v databázi Scopus
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