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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-600</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>РОЛЬ ГЕТЕРОАТОМА В ФОРМИРОВАНИИ CПЕКТРАЛЬНО-ЛЮМИНЕСЦЕНТНЫХ СВОЙСТВ 21-ТИО- И 21,23-ДИТИО-5,10,15,20-ТЕТРАФЕНИЛПОРФИРИНА В РАСТВОРАХ</article-title><trans-title-group xml:lang="en"><trans-title>HETEROATOM ROLE IN THE FORMATION OF THE SPECTRAL-LUMINESCENT PROPERTIES OF THE 21-THIA- AND 21,23-DITHIA-5,10,15,20-TETRAPHENYLPORPHYRIN IN SOLUTIONS</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>Вершиловская</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Vershilovskaya</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>220006, Минск</p></bio><bio xml:lang="en"><p>Minsk, 220006</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Люлькович</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Liulkovich</surname><given-names>L. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>220006, Минск; 220007, Минск</p></bio><bio xml:lang="en"><p>Minsk, 220006; Minsk, 220007</p></bio><email xlink:type="simple">lisa.lulkovich@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пуховская</surname><given-names>С. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Pukhovskaya</surname><given-names>S. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>153000, Иваново</p></bio><bio xml:lang="en"><p>Ivanovo, 153000</p></bio><email xlink:type="simple">svetlana.puhovskaya@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванова</surname><given-names>Ю. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanova</surname><given-names>Yu. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>153045, Иваново</p></bio><bio xml:lang="en"><p>Ivanovo, 153045</p></bio><email xlink:type="simple">jjiv@yandex.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Плотникова</surname><given-names>А. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Plotnikova</surname><given-names>A. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>153000, Иваново</p></bio><bio xml:lang="en"><p>Ivanovo, 153000</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Крук</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kruk</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>220006, Минск</p></bio><bio xml:lang="en"><p>Minsk, 220006</p></bio><email xlink:type="simple">krukmikalai@yahoo.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный технологический университет</institution></aff><aff xml:lang="en"><institution>Belarusian State Technological University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Белорусский государственный технологический университет; РУП “Белмедпрепараты”</institution></aff><aff xml:lang="en"><institution>Belarusian State Technological University; RUE Belmedpraparaty</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Ивановский государственный химико-технологический университет</institution></aff><aff xml:lang="en"><institution>Ivanovo State University of Chemistry and Technology</institution></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Институт химии растворов имени Г. А. Крестова Российской АН</institution></aff><aff xml:lang="en"><institution>G. A. Krestov Institute of Solution Chemistry of Russian Academy of Sciences</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>06</day><month>05</month><year>2020</year></pub-date><volume>87</volume><issue>2</issue><fpage>181</fpage><lpage>188</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Вершиловская И.В., Люлькович Е.С., Пуховская С.Г., Иванова Ю.Б., Плотникова А.О., Крук Н.Н., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Вершиловская И.В., Люлькович Е.С., Пуховская С.Г., Иванова Ю.Б., Плотникова А.О., Крук Н.Н.</copyright-holder><copyright-holder xml:lang="en">Vershilovskaya I.V., Liulkovich L.S., Pukhovskaya S.G., Ivanova Y.B., Plotnikova A.O., Kruk M.M.</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/600">https://zhps.ejournal.by/jour/article/view/600</self-uri><abstract><p>Исследованы спектрально-люминесцентные характеристики 21-тио-5,10,15,20-тетрафенилпорфирина и 21,23-дитио-5,10,15,20-тетрафенилпорфирина в растворах при температуре 293 К. На основании четырехорбитальной модели Гоутермана обсуждена природа спектральных сдвигов полос поглощения при гетерозамещении. Показано, что тушение флуоресценции гетеропорфиринов обусловлено эффектом внутреннего тяжелого атома, в качестве которого выступает гетероатом тиофенового кольца.</p></abstract><trans-abstract xml:lang="en"><p>The spectral-luminescent properties of the 21-thia-5,10,15,20-tetraphenylporphyrin and 21,23-dithia-5,10,15,20-tetraphenylporphyrin were studied in solutions at 293 K. The origin of the spectral shifts upon heterosubstitution was discussed on the basis of the Gouterman four-orbital model. It was shown that the quenching of the fluorescence of heteroporphyrins is due to the effect of the internal heavy atom, the role of which plays heteroatom of the thiophene ring.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гетеропорфирины</kwd><kwd>спектр поглощения</kwd><kwd>спектр флуоресценции</kwd><kwd>молекулярная орбиталь</kwd><kwd>спин-орбитальное взаимодействие</kwd></kwd-group><kwd-group xml:lang="en"><kwd>heteroporphyrins</kwd><kwd>absorption spectrum</kwd><kwd>fluorescence spectrum</kwd><kwd>molecular orbital</kwd><kwd>spin-orbit interaction</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Государственной программы научных исследований Республики Беларусь “Конвергенция 2020” (подпрограмма “Объединение”, задание 3.03).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">L. 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