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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Russian Journal of Biological Physics and Chemisrty</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Russian Journal of Biological Physics and Chemisrty</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>АКТУАЛЬНЫЕ ВОПРОСЫ БИОЛОГИЧЕСКОЙ ФИЗИКИ И ХИМИИ</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2499-9962</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">55006</article-id>
   <article-id pub-id-type="doi">10.29039/rusjbpc.2022.0507</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Моделирование в биофизике</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Modelling in biophycis</subject>
    </subj-group>
    <subj-group>
     <subject>Моделирование в биофизике</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">DIMERIZATION OF ALUMINUM PHTHALOCYANINE CHLORIDE IN ORGANIC AND AQUA-ORGANIC MEDIUM</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Димеризация фталоцианина алюминия в органической и водно-органической средах</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Клименко</surname>
       <given-names>И. В.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Klimenko</surname>
       <given-names>I. V.</given-names>
      </name>
     </name-alternatives>
     <email>inna@deom.chph.ras.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Астахова</surname>
       <given-names>Т. Ю.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Astakhova</surname>
       <given-names>T. Yu.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Тимохина</surname>
       <given-names>Е. Н.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Timokhina</surname>
       <given-names>E. N.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Лобанов</surname>
       <given-names>А. В.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Lobanov</surname>
       <given-names>A. V.</given-names>
      </name>
     </name-alternatives>
     <email>avlobanov@mail.ru</email>
     <xref ref-type="aff" rid="aff-4"/>
     <xref ref-type="aff" rid="aff-5"/>
     <xref ref-type="aff" rid="aff-6"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Институт биохимической физики им. Н.М. Эмануэля РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.M. Emanuel Institute of Biochemical Physics of Russian Academy of Sciences</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Институт биохимической физики им. Н.М. Эмануэля РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Институт биохимической физики им. Н.М. Эмануэля РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">ФИЦ химической физики им. Н.Н. Семенова РАН</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Московский педагогический государственный университет</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Moscow Pedagogical State University</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-6">
    <aff>
     <institution xml:lang="ru">Институт биохимической физики им. Н.М. Эмануэля РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.M. Emanuel Institute of Biochemical Physics of Russian Academy of Sciences</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2022-06-25T20:22:29+03:00">
    <day>25</day>
    <month>06</month>
    <year>2022</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2022-06-25T20:22:29+03:00">
    <day>25</day>
    <month>06</month>
    <year>2022</year>
   </pub-date>
   <volume>7</volume>
   <issue>2</issue>
   <fpage>230</fpage>
   <lpage>234</lpage>
   <history>
    <date date-type="received" iso-8601-date="2022-06-20T20:22:29+03:00">
     <day>20</day>
     <month>06</month>
     <year>2022</year>
    </date>
    <date date-type="accepted" iso-8601-date="2022-06-20T20:22:29+03:00">
     <day>20</day>
     <month>06</month>
     <year>2022</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/55006/view">https://rusjbpc.ru/en/nauka/article/55006/view</self-uri>
   <abstract xml:lang="ru">
    <p>Фталоцианин алюминия (AlClФц) – фотоактивное макрогетероциклическое соединение, которое, в мономерной форме, используется как фотосенсибилизатор (Фс) в фотодинамической терапии и диагностике. В работе изучены его физико-химические свойства в органической (N,N-диметилформамид, ДМФА) и водно-органической (ДМФА-вода) средах. Показано, что гидрофобные свойства AlClФц препятствуют его широкому применению в различных фармакологических композициях из-за его склонности к агрегации в водных растворах, что приводит к образованию нефлуоресцирующих агрегатов и снижению его фотодинамической активности. С помощью квантово-химических расчетов методом функционала электронной плотности (DFT) были определены геометрия и электронная структура AlClФц в мономерном и димеризованном (H- и J-агрегаты) состояниях. Приведены различные типы ориентации при димеризации молекул AlClФц: «спина к спине», «голова к голове», «голова к спине», а также смешанно-ориентированные типы. Доказано, что как в ДМФА, так и в ДМФА-вода средах предпочтительной ориентацией является «спина к спине» при сохранении в димере мономерной геометрии составляющих молекул. Показано, что в водно-органическом растворителе молекула AlClФц легко гидратируется с образованием координационной связи между атомом Al молекулы AlClФц и атомом O молекулы воды. Длина связи составляет 2,23 Å, а энергия гидратации -16,84 ккал/моль. Гидратирование способствует образованию димеров, в которых две молекулы воды играют роль «мостиков» между двумя молекулами AlClФц. В таком димере каждая молекула воды имеет две связи: одну координационную связь между своим атомом O и атомом Al одной из молекул AlClФц и одну водородную связь между своим атомом H и атомом N другой молекулы AlClФц. На основе полученных расчетных данных димеры AlClФц в среде ДМФА были отнесены к H-агрегатам, в среде ДМФА-вода – J-агрегатам, соответственно.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Aluminum phthalocyanine chloride (AlClPc) is a photoactive macroheterocyclic compound, which, in its monomeric form, is used as a photosensitizer (PS) in photodynamic therapy and diagnostics. In this paper, its physicochemical properties were studied in organic (N, N-dimethylformamide, DMF) and aqua-organic (DMF-aqua) media. It has been shown that the hydrophobic properties of AlClPc prevent its widespread use in various pharmacological compositions due to its tendency to aggregate in aqueous solutions, which leads to the formation of non-fluorescent aggregates and a decrease in its photodynamic activity. The geometry and electronic structure of AlClPc in the monomeric and dimerized (H- and &#13;
J-aggregates) states were studied using quantum-chemical calculations with the help of the electron density functional theory (DFT) method. Different types of orientation during the dimerization of AlClPc molecules are presented: “back to back”, “head to head”, “head to back”, as well as mixed-oriented types. It has been proven that both in DMF and DMF-aqua media, the preferred orientation is “back to back”, without sacrificing the monomeric geometry of the constituent molecules in the dimer. It is shown that in an aqueous organic solvent the AlClPc molecule is easily hydrated with the formation of a coordination bond between the Al atom of the AlClPc molecule and the O atom of the aqua molecule. The bond length is 2.23 Å, and the hydration energy is 16.84 kcal/mol. Hydration promotes the formation of dimers, in which two aqua molecules play the role of &quot;bridges&quot; between two AlClPc molecules. In such dimer, each aqua molecule has two bonds: one coordination bond between its O atom and the Al atom of one of the AlClPc molecules and one hydrogen bond between its H atom and the N atom of another AlClPc molecule. Based on the calculated data obtained, the AlClPc dimers in the DMF medium were assigned to H-aggregates, and in the DMF-water medium, to J-aggregates, respectively.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>фталоцианин алюминия</kwd>
    <kwd>физико-химические свойства</kwd>
    <kwd>оптическое поглощение</kwd>
    <kwd>квантово-химические расчеты</kwd>
    <kwd>агрегация</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>aluminum phthalocyanine chloride</kwd>
    <kwd>physico-chemical properties</kwd>
    <kwd>optical absorption</kwd>
    <kwd>quantum-chemical calculations</kwd>
    <kwd>aggregation</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">Исследование выполнено в рамках Государственного задания ИБХФ РАН (№ гос. регистрации 01201253304) и в рамках Программы фундаментальных научных исследований РФ (Госзадание FFZE-2022-0009, ФИЦ ХФ РАН). Расчеты выполнены с использованием вычислительных ресурсов МСЦ РАН.</funding-statement>
   </funding-group>
  </article-meta>
 </front>
 <body>
  <p></p>
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