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Rhodamine 6G based molecular ion-active switches of optical and fluorescent properties

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1. Title Title of document Rhodamine 6G based molecular ion-active switches of optical and fluorescent properties
2. Creator Author's name, affiliation, country E. N Shepelenko; Federal Research Centre the Southern Scientific Centre of the Russian Academy of Sciences
2. Creator Author's name, affiliation, country V. A Podshibyakin; Institute of Physical and Organic Chemistry, Southern Federal University
2. Creator Author's name, affiliation, country I. V Dubonosova; Institute of Physical and Organic Chemistry, Southern Federal University
2. Creator Author's name, affiliation, country O. Yu. Karlutova; Institute of Physical and Organic Chemistry, Southern Federal University
2. Creator Author's name, affiliation, country A. D Dubonosov; Federal Research Centre the Southern Scientific Centre of the Russian Academy of Sciences
2. Creator Author's name, affiliation, country V. A Bren; Institute of Physical and Organic Chemistry, Southern Federal University
3. Subject Discipline(s)
3. Subject Keyword(s) molecular switches; rhodamine 6G; fluorescence; chemosensors; ionochromic effect (naked-eye effect)
4. Description Abstract A series of rhodamine 6G derivatives with o -hydroxyarylime substituents was synthesized. The obtained compounds in acetonitrile are capable of H+ induced transformation of the spirolactam form into open form. The process is accompanied by the formation of new long-wave absorption maxima at 527-529 nm and fluorescence bands at 557-560 nm. The compound containing 2-hydroxy-4-dimethylaminophenyl substituent in the presence of Zn2+ cations displays switching of emission at 429 nm. This fluorescence is quenched selectively by the CN- anion. Copper(II) cations cause the transformation of the spirostructure of rhodamine with a 2-hydroxy-3- tert -butylbenzofuran group into an open form. Isomerization occurs with a chromogenic naked-eye effect - a change in the color of the solution from pale yellow to pink and the appearance of fluorescence at 556 nm. The observed ion-induced spectral transformations can be used in design of optical and fluorescent chemosensors.
5. Publisher Organizing agency, location ФИЦ КазНЦ РАН
6. Contributor Sponsor(s)
7. Date (DD-MM-YYYY) 15.08.2023
8. Type Status & genre Peer-reviewed Article
8. Type Type Research Article
9. Format File format
10. Identifier Uniform Resource Identifier https://snv63.ru/0044-460X/article/view/666900
10. Identifier Digital Object Identifier (DOI) 10.31857/S0044460X23080073
10. Identifier eLIBRARY Document Number (EDN) IXJEJN
11. Source Title; vol., no. (year) Žurnal obŝej himii; Vol 93, No 8 (2023)
12. Language English=en ru
13. Relation Supp. Files
14. Coverage Geo-spatial location, chronological period, research sample (gender, age, etc.)
15. Rights Copyright and permissions Copyright (c) 2023 Russian Academy of Sciences