Interactions of organic molecules at grain boundaries in ice: A solvatochromic analysis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F07%3A00020320" target="_blank" >RIV/00216224:14310/07:00020320 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Interactions of organic molecules at grain boundaries in ice: A solvatochromic analysis

Original language description

Empirical solvent polarity parameters were used to evaluate the nature and magnitude of the intermolecular interactions of eight dipolar organic solvatochromic indicators in aqueous solutions frozen at 253 or 77 K, using the concept that is generally employed to study the polarity of liquid solvents or solid surfaces. ET(30), ET(33), and as well as alpha, acceptor number (AN) (hydrogen-bond donation ability), beta (hydrogen-bond acceptor ability), and pi* (polarity/polarizability) parameters were obtained by measuring the differences in the shifts of the absorption spectra of the probes. It was found that hydrogen-bond and electron pair donating interactions were significant contributors to the polarity of a probe environment in ice and, at the same time, they were found to be substantially larger than those measured in liquid aqueous solutions and relatively insensitive to the sample temperature. While the former interaction type is attributed rather to the presence of water in a clos

Czech name

Interakce organických molekul na hranicích zrn ledu: Solvatochromní analýza

Czech description

Empirical solvent polarity parameters were used to evaluate the nature and magnitude of the intermolecular interactions of eight dipolar organic solvatochromic indicators in aqueous solutions frozen at 253 or 77 K, using the concept that is generally employed to study the polarity of liquid solvents or solid surfaces. ET(30), ET(33), and as well as alpha, acceptor number (AN) (hydrogen-bond donation ability), beta (hydrogen-bond acceptor ability), and pi* (polarity/polarizability) parameters were obtained by measuring the differences in the shifts of the absorption spectra of the probes. It was found that hydrogen-bond and electron pair donating interactions were significant contributors to the polarity of a probe environment in ice and, at the same time, they were found to be substantially larger than those measured in liquid aqueous solutions and relatively insensitive to the sample temperature. While the former interaction type is attributed rather to the presence of water in a clos

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CC - Organic chemistry

OECD FORD branch

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Project

<a href="/en/project/GA205%2F05%2F0819" target="_blank" >GA205/05/0819: Environmental consequences of photochemical processes in ice and snow</a><br>

Continuities

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

Publication year

2007

Confidentiality

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

Name of the periodical

Journal of Photochemistry and Photobiology A: Chemistry

ISSN

1010-6030

e-ISSN

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Volume of the periodical

187

Issue of the periodical within the volume

2-3

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

275-284

UT code for WoS article

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EID of the result in the Scopus database

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