Journal of Photochemistry and Photobiology A: Chemistry, volume 353, pages 34-45
Hydrogen-bonded self-assembly, spectral properties and structure of supramolecular complexes of thiamonomethine cyanines with cucurbit[5,7]urils
Fomina Marina
1
,
Nikiforov Alexander S
1
,
Avakyan Vitaly G.
1
,
Vedernikov Artem I.
1
,
Kurchavov Nikolai A
1
,
Strelenko Yuri A.
3
,
Howard Judith A.
4
,
Fomina Marina V.
5, 6
Publication type: Journal Article
Publication date: 2018-02-01
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor: 4.3
ISSN: 10106030, 18732666
General Chemistry
General Chemical Engineering
General Physics and Astronomy
Abstract
Abstract The complex formation of thiamonomethine cyanine dyes bearing two N-ammoniohexyl or two N-ethyl substituents with cucurbit[5,7]urils (CB[5,7]) in aqueous solutions was studied by electronic and 1H NMR spectroscopy, including spectrophotometric, fluorescence, and 1H NMR titration methods. It was found that CB[5] forms external complexes with the dyes, while CB[7] forms internal (inclusion) complexes of 1:1 and 1(dye):2(CB[5,7]) composition. The complexation with CB[5,7] changes the absorption spectra of cyanine dyes and induces a considerable fluorescence enhancement. The stability constants of the complexes were determined (logK1:1 varies in the range from 3.53 to more than 6, and logK1:2 varies in the range from 3.5 to 4.32). The dye with ammoniohexyl substituents forms more stable complexes owing to hydrogen bond formation between the NH3+ groups and the carbonyl groups of the CB[5,7] portals. The structure of supramolecular complexes was confirmed by quantum chemical calculations.
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Fomina M. et al. Hydrogen-bonded self-assembly, spectral properties and structure of supramolecular complexes of thiamonomethine cyanines with cucurbit[5,7]urils // Journal of Photochemistry and Photobiology A: Chemistry. 2018. Vol. 353. pp. 34-45.
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Fomina M., Nikiforov A. S., Avakyan V. G., Vedernikov A. I., Kurchavov N. A., Kuz'mina L. G., Strelenko Y. A., Howard J. A., Fomina M. V. Hydrogen-bonded self-assembly, spectral properties and structure of supramolecular complexes of thiamonomethine cyanines with cucurbit[5,7]urils // Journal of Photochemistry and Photobiology A: Chemistry. 2018. Vol. 353. pp. 34-45.
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TY - JOUR
DO - 10.1016/j.jphotochem.2017.10.035
UR - https://doi.org/10.1016%2Fj.jphotochem.2017.10.035
TI - Hydrogen-bonded self-assembly, spectral properties and structure of supramolecular complexes of thiamonomethine cyanines with cucurbit[5,7]urils
T2 - Journal of Photochemistry and Photobiology A: Chemistry
AU - Fomina, Marina
AU - Nikiforov, Alexander S
AU - Avakyan, Vitaly G.
AU - Vedernikov, Artem I.
AU - Kurchavov, Nikolai A
AU - Kuz'mina, Lyudmila G.
AU - Strelenko, Yuri A.
AU - Howard, Judith A.
AU - Fomina, Marina V.
PY - 2018
DA - 2018/02/01 00:00:00
PB - Elsevier
SP - 34-45
VL - 353
SN - 1010-6030
SN - 1873-2666
ER -
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@article{2018_Fomina,
author = {Marina Fomina and Alexander S Nikiforov and Vitaly G. Avakyan and Artem I. Vedernikov and Nikolai A Kurchavov and Lyudmila G. Kuz'mina and Yuri A. Strelenko and Judith A. Howard and Marina V. Fomina},
title = {Hydrogen-bonded self-assembly, spectral properties and structure of supramolecular complexes of thiamonomethine cyanines with cucurbit[5,7]urils},
journal = {Journal of Photochemistry and Photobiology A: Chemistry},
year = {2018},
volume = {353},
publisher = {Elsevier},
month = {feb},
url = {https://doi.org/10.1016%2Fj.jphotochem.2017.10.035},
pages = {34--45},
doi = {10.1016/j.jphotochem.2017.10.035}
}