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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-416</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>ФОТОХИМИЧЕСКИЕ ПРОЦЕССЫ В МОЛЕКУЛАХ ПОЛИМЕТИНОВЫХ КРАСИТЕЛЕЙ-ЗОНДОВ В ПРИСУТСТВИИ СОЛЕЙ ЖЕЛЧНЫХ КИСЛОТ</article-title><trans-title-group xml:lang="en"><trans-title>PHOTOCHEMICAL PROCESSES IN MOLECULES OF POLYMETHINE DYE PROBES IN THE PRESENCE OF BILE SALTS</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>Татиколов</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Tatikolov</surname><given-names>A. S.</given-names></name></name-alternatives><email xlink:type="simple">tatikolov@mail.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>Пронкин</surname><given-names>П. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Pronkin</surname><given-names>P. G.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт биохимической физики им. Н. М. Эмануэля Российской АН</institution></aff><aff xml:lang="en"><institution>N. M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences</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>6</issue><fpage>861</fpage><lpage>867</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Татиколов А.С., Пронкин П.Г., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Татиколов А.С., Пронкин П.Г.</copyright-holder><copyright-holder xml:lang="en">Tatikolov A.S., Pronkin P.G.</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/416">https://zhps.ejournal.by/jour/article/view/416</self-uri><abstract><p>Методом импульсного фотолиза изучены первичные фотохимические процессы в молекулах полиметиновых красителей-зондов 3,3 ¢ -ди(g-сульфопропил)-4,5,4 ¢ ,5 ¢ -дибензо-9-этилтиакарбоцианин-бетаина (ДЭЦ) и 3,3 ¢ ,9-триметилтиакарбоцианин-иодида (Cyan 2) в мицеллярных системах солей желчных кислот (СЖК) холата натрия, дезоксихолата натрия и таурохолата натрия, а также для сравнения додецилсульфата натрия (ДСН). При импульсном фотолизе воздушно-насыщенных водных растворов красителей в присутствии мицелл СЖК и ДСН наблюдаются сигналы, обусловленные фотоизомеризацией транс-изомеров красителей и обратной темновой изомеризацией образующихся цис-фотоизомеров. Времена жизни фотоизомеров 60-190 мкс. При импульсном фотолизе растворов Cyan 2 и ДЭЦ в отсутствие кислорода, в присутствии мицелл СЖК и ДСН наряду с фотоизомеризацией происходят переход красителей в возбужденное триплетное состояние и последующий обратный переход (интеркомбинационная конверсия) в исходное синглетное состояние. Для сравнения методом триплет-триплетного переноса энергии с антрацена получены спектры триплет-триплетного поглощения изомеров данных красителей в полярных (этаноле, изопропаноле) и неполярном (диоксане) растворителях. Сделан вывод о сходном фотохимическом поведении красителей в мицеллярных системах СЖК и ДСН. </p></abstract><trans-abstract xml:lang="en"><p>Rimary photochemical processes in molecules of polymethine dye probes 3,3 ¢ -di(g-sulfopropyl)-4,5,4 ¢ ,5 ¢ -dibenzo-9-ethylthiacarbocyanine betaine (DEC) and 3,3 ¢ ,9-trimethylthiacarbocyanine iodide ( Cyan 2) in the micellar systems of bile salts sodium cholate, sodium deoxycholate, and sodium taurocholate, as well as, for comparison, sodium dodecyl sulfate (SDS), have been studied by flash photolysis. Upon flash photolysis of aerated aqueous solutions of the dyes in the presence of micelles of bile salts and SDS, signals due to photoisomerization of the trans-isomers of the dyes and back dark isomerization of cis-photoisomers formed are observed. The lifetimes of the photoisomers are in the range of 60-190 μs. Moreover, upon flash photolysis of deoxygenated solutions of Cyan 2 and DEC in the presence of micelles of bile salts and SDS, in addition to photoisomerization, the transition of the dyes to the excited triplet state and the subsequent backward transition (intersystem crossing) to the initial singlet state occur. For comparison, the triplet-triplet absorption spectra of the isomers of the dyes have been obtained by the method of triplet-triplet energy transfer from anthracene in polar (ethanol, isopropanol) and nonpolar (dioxane) solvents. A conclusion is drawn about the similar photochemical behavior of the dyes in the micellar systems of bile salts and SDS. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>поверхностно-активное вещество</kwd><kwd>мицелла</kwd><kwd>соли желчных кислот</kwd><kwd>полиметиновые красители-зонды</kwd><kwd>транс-цис-фотоизомеризация</kwd><kwd>триплетное состояние</kwd><kwd>surfactants</kwd><kwd>micelle</kwd><kwd>bile salts</kwd><kwd>polymethine dye probes</kwd><kwd>trans-cis photoisomerization</kwd><kwd>triplet state</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">J. T. McPhee, E. Scott, N. E. Levinger, A. Van Orden. J. Phys. Chem. B, 115 (2011) 9585-9592</mixed-citation><mixed-citation xml:lang="en">J. T. McPhee, E. Scott, N. E. Levinger, A. Van Orden. J. Phys. Chem. 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