Self-assembled fractal hybrid dendrites from water-soluble anionic (Thia)calix[4] arenes and Ag+

Novel water-soluble anionic p-tertbutylthiacalix[ 4]arene with propanesulfonate fragments has been synthesized. Alkylation of the lower rim of thiacalix[4]arene in the presence of NaH/THF led to cone conformation instead of the expected 1,3-alternate conformer due to metal template effect. The presence of supramolecular associates at the critical micelle concentration of 1.65 · 10−5 M were investigated in aqueous solutions by a combination of different techniques (DLS and conductivity). It was observed that the macrocyclic platform decreases the CMC by tenfold as compared with non-macrocycle analogs. A simple approach for the design of stable monodisperse Ag-based nanoaggregates (near 95 nm) containing ionic Ag and organic ligand-thiacalix[4]arene sulfo derivative in water has been developed. Self-assembled fractal hybrid nanodendrites consisting of water-soluble anionic (thia)calix[4]arenes and Ag+ have been obtained in a single step under mild conditions. © Springer Science+Business Media Dordrecht 2017.

Авторы
Yakimova L.S. 1, 2 , Gilmanova L.H.1 , Evtugyn V.G.3 , Osin Y.N.3 , Stoikov I.I.1
Редакторы
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Издательство
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Номер выпуска
5
Язык
Английский
Страницы
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Статус
Опубликовано
Подразделение
-
Номер
173
Том
19
Год
2017
Организации
  • 1 A. M. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya 18, Kazan, 420008, Russian Federation
  • 2 Organic Chemistry Department, Faculty of Scienc, RUDN University, 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
  • 3 Interdisciplinary Centre for Analytical Microscopy, Kazan Federal University, Kremlevskaya 18, Kazan, 420008, Russian Federation
Ключевые слова
(Thia)calix[4]arene; Ag-based aggregates; Dendrite; Electron microscopy; Mapping; Self-assembly; Stable suspensions
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/5509/