KFU. Card publication. Investigation of Tetramethylenesulfonated Calix[4]Resorcinarene Interactions with Azo-Dyes in Aqueous Solution

KAZAN
FEDERAL UNIVERSITY

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INVESTIGATION OF TETRAMETHYLENESULFONATED CALIX[4]RESORCINARENE INTERACTIONS WITH AZO-DYES IN AQUEOUS SOLUTION

Form of presentation

Articles in international journals and collections

Year of publication

2010

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Authors, employees of KFU

Konovalov Aleksandr Ivanovich, author

Mironova Diana Aleksandrovna, author

Morozova Yuliya Ernestovna, author

Shalaeva Yana Viktorovna, author

Other authors

Kazakova Ella Khatibovna, author

Makarova Neli Aleksandrovna, author

Syakaev Viktor Vasilevich, author

Bibliographic description in the original language

Morozova Ju. E. Investigation of Tetramethylenesulfonated Calix[4]Resorcinarene Interactions with Azo-Dyes in Aqueous Solution. / Morozova Ju. E., Kazakova E. Kh., Mironova D. A., Shalaeva Ya. V., Syakaev V. V., Makarova N. A., Konovalov A. I. // J. Phys. Chem. B. - 2010. - V.114, No. 41. - P. 13152–13158.

Annotation

Here, we report on the interactions of nonaggregated methyl-substituted (SCA1) and aggregated penthyl-substituted (SCA2) tetramethylenesulfonated calix[4]resorcinarenes with pH indicators methyl yellow (MY) and methyl orange (MO) in aqueous solutions. It was found that the pH of aqueous solutions of SCA1 and SCA2 depends on their concentration; besides, variation of the concentration of SCA1 and SCA2 results in a shift of the absorption maxima and of pH-sensitive azo dyes. Association of the marocycles with azo dyes was demonstrated to follow a proton-transfer mechanism accompanied by protonation of the dyes; it was found that excess of the macrocycle in solution with the universal buffer background shifts the pKa values and stabilizes the protonated form of the dyes.

Keywords

Calix[4]resorcinarene, aggregation, pH indicator, pKa value shift

The name of the journal

J PHYS CHEM B

URL

http://pubs.acs.org/doi/abs/10.1021/jp106060p

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=139093&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Konovalov Aleksandr Ivanovich	ru_RU
dc.contributor.author	Mironova Diana Aleksandrovna	ru_RU
dc.contributor.author	Morozova Yuliya Ernestovna	ru_RU
dc.contributor.author	Shalaeva Yana Viktorovna	ru_RU
dc.contributor.author	Kazakova Ella Khatibovna	ru_RU
dc.contributor.author	Makarova Neli Aleksandrovna	ru_RU
dc.contributor.author	Syakaev Viktor Vasilevich	ru_RU
dc.date.accessioned	2010-01-01T00:00:00Z	ru_RU
dc.date.available	2010-01-01T00:00:00Z	ru_RU
dc.date.issued	2010	ru_RU
dc.identifier.citation	Morozova Ju. E. Investigation of Tetramethylenesulfonated Calix[4]Resorcinarene Interactions with Azo-Dyes in Aqueous Solution. / Morozova Ju. E., Kazakova E. Kh., Mironova D. A., Shalaeva Ya. V., Syakaev V. V., Makarova N. A., Konovalov A. I. // J. Phys. Chem. B. - 2010. - V.114, No. 41. - P. 13152–13158.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=139093&p_lang=2	ru_RU
dc.description.abstract	J PHYS CHEM B	ru_RU
dc.description.abstract	Here, we report on the interactions of nonaggregated methyl-substituted (SCA1) and aggregated penthyl-substituted (SCA2) tetramethylenesulfonated calix[4]resorcinarenes with pH indicators methyl yellow (MY) and methyl orange (MO) in aqueous solutions. It was found that the pH of aqueous solutions of SCA1 and SCA2 depends on their concentration; besides, variation of the concentration of SCA1 and SCA2 results in a shift of the absorption maxima and of pH-sensitive azo dyes. Association of the marocycles with azo dyes was demonstrated to follow a proton-transfer mechanism accompanied by protonation of the dyes; it was found that excess of the macrocycle in solution with the universal buffer background shifts the pKa values and stabilizes the protonated form of the dyes.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Calix[4]resorcinarene	ru_RU
dc.subject	aggregation	ru_RU
dc.subject	pH indicator	ru_RU
dc.subject	pKa value shift	ru_RU
dc.title	Investigation of Tetramethylenesulfonated Calix[4]Resorcinarene Interactions with Azo-Dyes in Aqueous Solution	ru_RU
dc.type	Articles in international journals and collections	ru_RU