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Solvent extraction and self-assembly of nanosized aggregates of p-tert-butyl thiacalix[4]arenes tetrasubstituted at the lower rim by tertiary amide groups and monocharged metal cations in the organic phase

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dc.contributor.author Stoikov I.
dc.contributor.author Yushkova E.
dc.contributor.author Zhukov A.
dc.contributor.author Zharov I.
dc.contributor.author Antipin I.
dc.contributor.author Konovalov A.
dc.date.accessioned 2018-09-18T20:31:59Z
dc.date.available 2018-09-18T20:31:59Z
dc.date.issued 2008
dc.identifier.issn 0040-4020
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/140855
dc.description.abstract New p-tert-butyl thiacalix[4]arenes functionalized with morpholide and pyrrolidide groups at the lower rim in cone, partial cone, and 1,3-alternate conformations were synthesized, and their receptor properties for monocharged cations (alkali metal and silver ions) were studied using the picrate extraction method and dynamic light scattering (DLS). To evaluate the ability of the p-tert-butyl thiacalix[4]arene derivatives to recognize metal ions, liquid-liquid extraction of their picrate salts has been carried out in a mutually saturated water-dichloromethane system. The degrees of extraction and the extraction constants for monocharged metal cations (Li+, Na+, K+, Cs+) have been determined. The ability of the systems, consisting of host and guest molecules, to self-assembly was proved by DLS using a Zetasizer Nano ZS particle size analyzer. It was shown that all the investigated thiacalix[4]arenes are able to form nanoscale particles with silver cations under the experimental conditions. The pyrrolidide derivative in the cone conformation showed both self-association and aggregation processes with lithium cations. The degree of extraction for all the investigated systems that formed nanoscale aggregates in the organic phase was more than 67% and the extraction constants, log Kex determined by the picrate extraction method, more than 6. © 2008 Elsevier Ltd. All rights reserved.
dc.relation.ispartofseries Tetrahedron
dc.subject Dynamic light scattering (DLS)
dc.subject Molecular recognition
dc.subject p-tert-Butyl thiacalix[4]arenes
dc.subject Picrate extraction
dc.subject Self-assembly
dc.title Solvent extraction and self-assembly of nanosized aggregates of p-tert-butyl thiacalix[4]arenes tetrasubstituted at the lower rim by tertiary amide groups and monocharged metal cations in the organic phase
dc.type Article
dc.relation.ispartofseries-issue 32
dc.relation.ispartofseries-volume 64
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 7489
dc.source.id SCOPUS00404020-2008-64-32-SID45849084977


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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