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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Doklady Chemistry</journal-id><journal-title-group><journal-title xml:lang="en">Doklady Chemistry</journal-title><trans-title-group xml:lang="ru"><trans-title>Доклады Российской академии наук. Химия, науки о материалах</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2686-9535</issn><issn publication-format="electronic">3034-5111</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">695815</article-id><article-id pub-id-type="doi">10.7868/S3034511125040058</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>PHYSICAL CHEMISTRY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ФИЗИЧЕСКАЯ ХИМИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Singlet-triplet excitation of room-temperature phosphorescence of 1-bromonaphthalene–β-cyclodextrin–cyclohexane ternary complexes</article-title><trans-title-group xml:lang="ru"><trans-title>Синглет-триплетное возбуждение фосфоресценции тройных комплексов 1‑бромонафталин–β‑циклодекстрин–циклогексан при комнатной температуре</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Makhrov</surname><given-names>D. E.</given-names></name><name xml:lang="ru"><surname>Махров</surname><given-names>Д. Е.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ionov</surname><given-names>D. S.</given-names></name><name xml:lang="ru"><surname>Ионов</surname><given-names>Д. С.</given-names></name></name-alternatives><email>dmitriy.ionov@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ionova</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Ионова</surname><given-names>И. В.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Alfimov</surname><given-names>M. V.</given-names></name><name xml:lang="ru"><surname>Алфимов</surname><given-names>М. В.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Photochemistry Center, Crystallography and Photonics Complex, NRC Kurchatov Institute</institution></aff><aff><institution xml:lang="ru">НИЦ “Курчатовский институт”, Курчатовский комплекс кристаллографии и фотоники, отделение Центр Фотохимии</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Moscow Institute of Physics and Technology</institution></aff><aff><institution xml:lang="ru">Московский физико-технический институт (государственный университет)</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-08-15" publication-format="electronic"><day>15</day><month>08</month><year>2025</year></pub-date><volume>523</volume><issue>1</issue><issue-title xml:lang="en">VOL 523, NO (2025)</issue-title><issue-title xml:lang="ru">ТОМ 523, № (2025)</issue-title><fpage>42</fpage><lpage>49</lpage><history><date date-type="received" iso-8601-date="2025-11-05"><day>05</day><month>11</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2025-08-15"/></permissions><self-uri xlink:href="https://journals.eco-vector.com/2686-9535/article/view/695815">https://journals.eco-vector.com/2686-9535/article/view/695815</self-uri><abstract xml:lang="en"><p>The spectra and kinetics of room-temperature phosphorescence of ternary complexes of 1-chloronaphthalene and 1-bromonaphthalene with β-cyclodextrin and cyclohexane were studied. The lifetimes of phosphorescence of ternary complexes measured at room temperature in the absence of oxygen were 214 and 10 ms for 1-chloronaphthalene and 1-bromonaphthalene, respectively. Triplet-triplet annihilation was detected for 1-bromonaphthalene complexes and the possibility of direct excitation of triplet states as a result of singlet-triplet absorption was shown.</p></abstract><trans-abstract xml:lang="ru"><p>Проведены исследования спектров и кинетики затухания фосфоресценции тройных комплексов 1-хлорнафталина и 1-бромнафталина с β-циклодекстрином и циклогексаном при комнатной температуре. Времена жизни фосфоресценции тройных комплексов, измеренные при комнатной температуре в отсутствие кислорода, составили 214 и 10 мс для 1-хлорнафталина и 1-бромнафталина соответственно. Для комплексов 1-бромнафталина показана возможность прямого возбуждения триплетных состояний в результате синглет-триплетного поглощения.</p></trans-abstract><kwd-group xml:lang="en"><kwd>phosphorescence</kwd><kwd>singlet-triplet absorption</kwd><kwd>triplet-triplet annihilation</kwd><kwd>1-bromonaphthalene</kwd><kwd>1-chloronaphthalene</kwd><kwd>inclusion complexes</kwd><kwd>β-cyclodextrin</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>фосфоресценция</kwd><kwd>синглет-триплетное поглощение</kwd><kwd>1-бромнафталин</kwd><kwd>1-хлорнафталин</kwd><kwd>комплексы включения</kwd><kwd>β-циклодекстрин</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа по получению комплексов и изучению оптических свойств была выполнена при финансовой поддержке Российского Научного Фонда (грант № 24-13-00443).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Organic photovoltaics. 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