Photooxidation of Aniline Derivatives Can Be Activated by Freezing Their Aqueous Solutions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F17%3A00483886" target="_blank" >RIV/61388963:_____/17:00483886 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/17:00095495
Result on the web
<a href="http://dx.doi.org/10.1021/acs.est.7b04510" target="_blank" >http://dx.doi.org/10.1021/acs.est.7b04510</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.est.7b04510" target="_blank" >10.1021/acs.est.7b04510</a>
Alternative languages
Result language
angličtina
Original language name
Photooxidation of Aniline Derivatives Can Be Activated by Freezing Their Aqueous Solutions
Original language description
A combined experimental and computational approach was, used to investigate the spectroscopic properties of three different aniline derivatives (aniline, N,N-dimethylaniline, and N,N-diethylaniline) in aqueous solutions and at the air-ice interface in the temperature range of 243-298 K The absorption and diffuse reflectance spectra of ice samples prepared by different techniques, such as slow or shock freezing of the aqueous solutions or vapor deposition on ice grains, exhibited unequivocal bathochromic shifts of 10-15 nm of the absorption maxima of anilines in frozen samples compared to those in liquid aqueous solutions. DFT and SCS-ADC(2) calculations showed that contaminant contaminant and contaminant-ice interactions are responsible for these shifts. Finally, we demonstrate that irradiation of anilines in the presence of a hydrogen peroxide/O-2 system by wavelengths that overlap only with the red-shifted absorption tails of anilines in frozen samples (while having a marginal overlap with their spectra in liquid solutions) can almost exclusively trigger a photochemical oxidation process. Mechanistic and environmental considerations are discussed.
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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Environmental Science and Technology
ISSN
0013-936X
e-ISSN
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Volume of the periodical
51
Issue of the periodical within the volume
23
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
13763-13770
UT code for WoS article
000417549500026
EID of the result in the Scopus database
2-s2.0-85038206874