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7 results on '"Kurchavov, Nikolay A."'

3. Synthesis, Structure, and Characterization of Chromo(fluoro)ionophores with Cation-Triggered Emission Based on N-Methylaza-Crown-Ether Styryl Dyes

Author

Gromov, Sergey P., Dmitrieva, Svetlana N., Vedernikov, Artem I., Kurchavov, Nikolay A., Kuz’mina, Lyudmila G., Sazonov, Sergey K., Strelenko, Yuri A., Alfimov, Michael V., Howard, Judith A. K., and Ushakov, Evgeny N.

Abstract

Novel 2-benzothiazole-, 4-pyridine-, and 2- and 4-quinoline-based styryl dyes containing an N-methylbenzoaza-15(18)-crown-5(6)-ether moiety were synthesized. A detailed electronic spectroscopy study revealed high performance of these compounds as optical molecular sensors for alkali and alkaline-earth metal cations. They were shown to considerably surpass analogous chromoionophores based on N-phenylaza-crown ethers regarding both the ionochromism and the cation-binding ability. In addition, they act as fluorescent sensors for the metal cations by demonstrating cation-triggered emission. Upon complexation with Ba2+, the fluorescence enhancement factor reaches 61. The structural features of dyes and their metal complexes were studied by NMR spectroscopy and X-ray diffraction. The high degree of macrocycle preorganization was found to be one of the factors determining the high cation-binding ability of the sensor molecules based on N-methylbenzoaza-crown ethers.

Published
2024
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4. Synthesis, Structure, and Characterization of Chromo(fluoro)ionophores with Cation-Triggered Emission Based on N-Methylaza-Crown-Ether Styryl Dyes

Author

Gromov, Sergey P., primary, Dmitrieva, Svetlana N., additional, Vedernikov, Artem I., additional, Kurchavov, Nikolay A., additional, Kuz’mina, Lyudmila G., additional, Sazonov, Sergey K., additional, Strelenko, Yuri A., additional, Alfimov, Michael V., additional, Howard, Judith A. K., additional, and Ushakov, Evgeny N., additional

Published
2013
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5. Macrocyclic Complexes of Palladium(II) with Benzothiacrown Ethers: Synthesis, Characterization, and Structure of cis and trans Isomers

Author

Dmitrieva, Svetlana N., primary, Sidorenko, Natalia I., additional, Kurchavov, Nikolay A., additional, Vedernikov, Artem I., additional, Freidzon, Alexandra Ya., additional, Kuz’mina, Lyudmila G., additional, Buryak, Aleksei K., additional, Buslaeva, Tat’yana M., additional, Bagatur’yants, Alexander A., additional, Strelenko, Yuri A., additional, Howard, Judith A. K., additional, and Gromov, Sergey P., additional

Published
2011
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6. N -Methylbenzoazacrown ethers with the nitrogen atom conjugated with the benzene ring: the improved synthesis and the reasons for the high stability of complexes with metal and ammonium cations

Author

Gromov, Sergey P., primary, Dmitrieva, Svetlana N., additional, Vedernikov, Artem I., additional, Kurchavov, Nikolay A., additional, Kuz'mina, Lyudmila G., additional, Strelenko, Yuri A., additional, Alfimov, Michael V., additional, and Howard, Judith A. K., additional

Published
2009
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