Polysubstituted 5‐Phenylazopyrimidines Extremely Fast Non‐Ionic Photochromic Oscillators
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F20%3A00524472" target="_blank" >RIV/61388963:_____/20:00524472 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.202007065" target="_blank" >https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.202007065</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/anie.202007065" target="_blank" >10.1002/anie.202007065</a>
Alternative languages
Result language
angličtina
Original language name
Polysubstituted 5‐Phenylazopyrimidines Extremely Fast Non‐Ionic Photochromic Oscillators
Original language description
Photochromic systems with ultrahigh rate of thermal relaxation are highly desirable for development of new efficient photochromic oscillators. Based on DFT calculations, we designed a series of 5‐phenylazopyrimidines with strong push‐pull character in silico and observed very low energy barriers of thermal ( Z )‐to‐( E ) isomerization. The structure of the ( Z )‐isomer of the slowest derivative in the series was confirmed by NMR with in situ irradiation at low temperature. The substituents can tune the lifetime of thermal back isomerization from hundreds of ms to several ns (8 orders of magnitude). The photoswitching parameters were extracted from transient absorption techniques and a dominant rotation mechanism of the ( Z )‐to‐( E ) thermal fading was proposed based on DFT calculations.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/GA18-11851S" target="_blank" >GA18-11851S: Intermolecular interactions studied by NMR spectroscopy and advanced quantum-chemical calculations</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Angewandte Chemie - International Edition
ISSN
1433-7851
e-ISSN
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Volume of the periodical
59
Issue of the periodical within the volume
36
Country of publishing house
DE - GERMANY
Number of pages
5
Pages from-to
15590-15594
UT code for WoS article
000550477900001
EID of the result in the Scopus database
2-s2.0-85088138482