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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">zhps</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал прикладной спектроскопии</journal-title><trans-title-group xml:lang="en"><trans-title>Zhurnal Prikladnoii Spektroskopii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0514-7506</issn><publisher><publisher-name>B. I. Stepanov Institute of Physics of the National Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">zhps-222</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>ВЛИЯНИЕ ВЯЗКОСТИ И ПОЛЯРНЫХ СВОЙСТВ РАСТВОРИТЕЛЯ НА ДИНАМИКУ ФОТОИНДУЦИРОВАННОГО ПЕРЕНОСА ЗАРЯДА В КАТИОНЕ BTA-1 - ПРОИЗВОДНОМ ТИОФЛАВИНА Т</article-title><trans-title-group xml:lang="en"><trans-title>EFFECT OF VISCOSITY AND POLAR PROPERTIES OF SOLVENT ON DYNAMICS OF PHOTOINDUCED CHARGE TRANSFER IN BTA-1 CATION - DERIVATIVE OF THIOFLAVIN T</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гоголева</surname><given-names>С. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Gogoleva</surname><given-names>S. D.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Степуро</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Stsiapura</surname><given-names>V. I.</given-names></name></name-alternatives><email xlink:type="simple">stsiapura@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Гродненский государственный университет им. Янки Купалы</institution></aff><aff xml:lang="en"><institution>Yanka Kupala Grodno State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>10</day><month>03</month><year>2020</year></pub-date><volume>85</volume><issue>2</issue><fpage>219</fpage><lpage>225</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гоголева С.Д., Степуро В.И., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Гоголева С.Д., Степуро В.И.</copyright-holder><copyright-holder xml:lang="en">Gogoleva S.D., Stsiapura V.I.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://zhps.ejournal.by/jour/article/view/222">https://zhps.ejournal.by/jour/article/view/222</self-uri><abstract><p>Обнаружено различие спектральных свойств флуоресценции катиона ВТА-1С в протонодонорных и апротонных растворителях. Показано, что для растворов длинноцепочечных спиртов вязкость является доминирующим фактором, определяющим динамику внутримолекулярного переноса заряда молекулы BTA-1С. В случае апротонных растворителей обнаружена корреляция константы скорости внутримолекулярного переноса заряда, сопряженного с поворотом фрагментов молекулы относительно друг друга (TICT-процесса), в возбужденном состоянии со скоростью сольватной релаксации: kTICT~ 1/tS. </p></abstract><trans-abstract xml:lang="en"><p>Difference in spectral and fluorescent properties of BTA-1C cation in protic and aprotic solvents was found. It has been shown that, for the dye solutions in long-chain alcohols, viscosity is the dominant factor which determines the dynamics of intramolecular charge transfer in the excited state of BTA-1C. In the case of aprotic solvents, we found correlation of the rate of twisted intramolecular charge transfer (TICT) process with the solvent relaxation rate kTICT ~ 1/tS. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>флуоресцентные молекулярные роторы</kwd><kwd>производные тиофлавина Т</kwd><kwd>фотоиндуцированный перенос заряда</kwd><kwd>TICT-процесс</kwd><kwd>сольватная релаксация</kwd><kwd>fluorescent molecular rotors</kwd><kwd>derivatives of thioflavin T</kwd><kwd>photoinduced charge transfer</kwd><kwd>TICT process</kwd><kwd>solvent relaxation</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">R. O. Loutfy, B. A. Arnold. J. Phys. Chem., 86, N 21 (1982) 4205-4211</mixed-citation><mixed-citation xml:lang="en">R. O. Loutfy, B. A. Arnold. J. Phys. 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