Solvent Effects on the Actinic Step of Donor-Acceptor Stenhouse Adduct Photoswitching

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F18%3A73591230" target="_blank" >RIV/61989592:15310/18:73591230 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/ange.201803058" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/ange.201803058</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/anie.201803058" target="_blank" >10.1002/anie.201803058</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Solvent Effects on the Actinic Step of Donor-Acceptor Stenhouse Adduct Photoswitching

Popis výsledku v původním jazyce

Donor-acceptor Stenhouse adducts (DASAs) are negative photochromes that switch with visible light and are highly promising for applications ranging from smart materials to biological systems. However, the strong solvent dependence of the photoswitching kinetics limits their application. The nature of the photoswitching mechanism in different solvents is key for addressing the solvatochromism of DASAs, but as yet has remained elusive. Here, we employ spectroscopic analyses and TD-DFT calculations to reveal changing solvatochromic shifts and energies of the species involved in DASA photoswitching. Time-resolved visible pump-probe spectroscopy suggests that the primary photochemical step remains the same, irrespective of the polarity and protic nature of the solvent. Disentangling the different factors determining the solvent-dependence of DASA photoswitching, presented here, is crucial for the rational development of applications in a wide range of different media.

Název v anglickém jazyce

Solvent Effects on the Actinic Step of Donor-Acceptor Stenhouse Adduct Photoswitching

Popis výsledku anglicky

Donor-acceptor Stenhouse adducts (DASAs) are negative photochromes that switch with visible light and are highly promising for applications ranging from smart materials to biological systems. However, the strong solvent dependence of the photoswitching kinetics limits their application. The nature of the photoswitching mechanism in different solvents is key for addressing the solvatochromism of DASAs, but as yet has remained elusive. Here, we employ spectroscopic analyses and TD-DFT calculations to reveal changing solvatochromic shifts and energies of the species involved in DASA photoswitching. Time-resolved visible pump-probe spectroscopy suggests that the primary photochemical step remains the same, irrespective of the polarity and protic nature of the solvent. Disentangling the different factors determining the solvent-dependence of DASA photoswitching, presented here, is crucial for the rational development of applications in a wide range of different media.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/LO1305" target="_blank" >LO1305: Rozvoj centra pokročilých technologií a materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

ISSN

1433-7851

e-ISSN

—

Svazek periodika

57

Číslo periodika v rámci svazku

27

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

6

Strana od-do

8063-8068

Kód UT WoS článku

000436402100021

EID výsledku v databázi Scopus

2-s2.0-85047733651