КФУ. Карточка публикации. Influence of amidoammonium calix[4]resorcinarenes on methyl orange protolytic equilibrium: supramolecular indicator systems

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INFLUENCE OF AMIDOAMMONIUM CALIX[4]RESORCINARENES ON METHYL ORANGE PROTOLYTIC EQUILIBRIUM: SUPRAMOLECULAR INDICATOR SYSTEMS

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2013

Язык

английский

Авторы, сотрудники КФУ

Коновалов Александр Иванович, автор

Миронова Диана Александровна, автор

Морозова Юлия Эрнестовна, автор

Другие авторы

Казакова Элла Хатибовна, автор

Муслинкина Лия Абдурахимовна, автор

Сякаев Виктор Васильевич, автор

Библиографическое описание на языке оригинала

Kazakova E. Kh. Influence of amidoammonium calix[4]resorcinarenes on methyl orange protolytic equilibrium: supramolecular indicator systems / E. Kh. Kazakova, Ju. E. Morozova, D. A. Mironova, V. V. Syakaev, L. A. Muslinkina, A. I. Konovalov // Supramol.Chem. - 2013. - V. 25, N 12. - P. 831 – 841.

Аннотация

Here, we report on the study of cationic amidoammonium calix[4]resorcinarenes 1–5 of various lipophilicity capable of binding acid–base indicator methyl orange (MO). We identified the contributions of macrocycle aggregation and conformational mobility in the binding of MO. The effective pKa values of bound MO systematically decrease as the size and the packing density of the aggregates increase with an increase in calixresorcinarene lipophilicity. Consideration of a series of macrocycles clearly shows that large aggregates form most stable complexes, binding guests not on individual level but as aggregates. It was found that the most stable MO complex with 5 is formed due to electrostatic binding with ammonium groups of the macrocycle and incapsulation of MO in a hydrophobic layer of the aggregates.We have shown that competitive binding of MO and cationic surfactants by aggregates of 5 is suitable for visual/spectrophotometric detection of colourless anionic substrates.

Ключевые слова

calixresorcinarene; azo-dye; aggregation; UV?vis; NMR spectroscopy

Название журнала

Supramolecular Chemistry

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https://repository.kpfu.ru/?p_id=139183

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Коновалов Александр Иванович	ru_RU
dc.contributor.author	Миронова Диана Александровна	ru_RU
dc.contributor.author	Морозова Юлия Эрнестовна	ru_RU
dc.contributor.author	Казакова Элла Хатибовна	ru_RU
dc.contributor.author	Муслинкина Лия Абдурахимовна	ru_RU
dc.contributor.author	Сякаев Виктор Васильевич	ru_RU
dc.date.accessioned	2013-01-01T00:00:00Z	ru_RU
dc.date.available	2013-01-01T00:00:00Z	ru_RU
dc.date.issued	2013	ru_RU
dc.identifier.citation	Kazakova E. Kh. Influence of amidoammonium calix[4]resorcinarenes on methyl orange protolytic equilibrium: supramolecular indicator systems / E. Kh. Kazakova, Ju. E. Morozova, D. A. Mironova, V. V. Syakaev, L. A. Muslinkina, A. I. Konovalov // Supramol.Chem. - 2013. - V. 25, N 12. - P. 831 – 841.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=139183	ru_RU
dc.description.abstract	Supramolecular Chemistry	ru_RU
dc.description.abstract	Here, we report on the study of cationic amidoammonium calix[4]resorcinarenes 1–5 of various lipophilicity capable of binding acid–base indicator methyl orange (MO). We identified the contributions of macrocycle aggregation and conformational mobility in the binding of MO. The effective pKa values of bound MO systematically decrease as the size and the packing density of the aggregates increase with an increase in calixresorcinarene lipophilicity. Consideration of a series of macrocycles clearly shows that large aggregates form most stable complexes, binding guests not on individual level but as aggregates. It was found that the most stable MO complex with 5 is formed due to electrostatic binding with ammonium groups of the macrocycle and incapsulation of MO in a hydrophobic layer of the aggregates.We have shown that competitive binding of MO and cationic surfactants by aggregates of 5 is suitable for visual/spectrophotometric detection of colourless anionic substrates.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject		ru_RU
dc.title	Influence of amidoammonium calix[4]resorcinarenes on methyl orange protolytic equilibrium: supramolecular indicator systems	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU