Russian Journal of Biological Physics and Chemisrty Russian Journal of Biological Physics and Chemisrty АКТУАЛЬНЫЕ ВОПРОСЫ БИОЛОГИЧЕСКОЙ ФИЗИКИ И ХИМИИ 2499-9962 54158 МОЛЕКУЛЯРНАЯ БИОФИЗИКА И ФИЗИКА БИОМОЛЕКУЛ MOLECULAR BIOPHYSICS AND PHYSICS OF BIOMOLECULES МОЛЕКУЛЯРНАЯ БИОФИЗИКА И ФИЗИКА БИОМОЛЕКУЛ Self-organisation of terdentate cyclometallated Pt complexes in solution and solid state ЯМР-анализ самоассоциации тердиентированных циклометаллических комплексов Pt в водном растворе Мосунов А А Mosunov A A AAMosunov@sevsu.ru Ельцов О С Eltsov O S Сулейманова А Ф Suleymanova A F Кожевников В Н Kozhevnikov V N Евстигнеев М П Evstigneev M P max_evstigneev@mail.ru Севастопольский государственный университет ru Sevastopol State University ru Уральский федеральный университет имени первого Президента России Б.Н. Ельцина ru Ural Federal University ru Нортумбрийский университет ru Northumbria University ru Нортумбрийский университет ru Northumbria University ru Севастопольский государственный университет ru Sevastopol State University ru 25 06 2017 25 06 2017 2 1 225 229 20 06 2017 20 06 2017 https://rusjbpc.ru/en/nauka/article/54158/view

Одной из ключевых особенностей плоских комплексов Pt (II) является их способность к самоагрегированию. Это явление обусловлено множеством межмолекулярных сил, в том числе основанных на взаимодействии с лигандами, а также металлофильными взаимодействиями Pt-Pt. Самоагрегирование широко использовалось для создания множества супрамолекулярных материалов. В поисках новых материалов, пригодных для самосборки, желательно получить информацию о силе межмолекулярных взаимодействий в комплексе. Исследование методом ЯМР титрования - это хорошо известный метод исследования таких взаимодействий, обеспечивающий информацию о величине связи в агрегатах комплексов Pt (II). В работе рассмотрено изучение процессов самоассоциации нейтральных циклометаллических комплексов в растворе. Проведено сравнение результатов ЯМР-исследования и вычислительного эксперимента. Для некоторых комплексов платины Pt (II) показано существование в растворе в виде агрегатов.

One of the key feature of square planar Pt (II) complexes is their ability to self-aggregate. This phenomenon is driven by a variety of intermolecular forces including ligand-based as well as metallophilic Pt-Pt interactions. Self-aggregation was exploited extensively to access a variety of supramolecular materials. In search for new self-associating materials it is desirable to be able to gain information about the strength of intermolecular interactions between molecules. NMR dilution study is a well-established method to explore such interactions providing information on the magnitude of the bonding within the aggregates of Pt (II) complexes. Here we report on the self-association process of neutral cyclometallated complexes in solution combining this technique (NMR-investigation) with computational methods. For some of the Pt (II) complexes, the behaviour in solution is faced with the self-organization into liquid crystalline phases observed in the bulk.

 ЯМР-спектроскопия самоассоциация стэкинг-взаимодействие NMR-spectroscopy self-association staking-aggregation

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