Investigations of solvatochromism of 2-(3-coumaroyl)-benzopyrylium dye and its di-substituted derivatives
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Investigations of solvatochromism of 2-(3-coumaroyl)-benzopyrylium dye and its di-substituted derivatives
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| Creator |
Sanin, E.V.
Novikov, A.I. Roshal, A.D. |
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| Subject |
Characterization and properties
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| Description |
The electronic structure of 2-(3-coumaroyl)-benzopyrylium perchlorate (CBP) and its di-substituted derivatives, has been investigated the experimental and theoretical analysis of spectral properties of these compounds in various media. It was found that spectral behavior of CBP and its derivatives depend on two solvent properties – nucleophility, which stabilizes cations in the ground state, and polarizability, which stabilizes cations in the Frank-Condon excited state. The growth of nucleophility and polarizability parameters of solvents leads, correspondingly, to hypsochromic and bathochromic shifts of CBP long-wavelength absorption bands. Spectral manifestations of the solvent nucleophility appear in CBP derivatives with strong inter-fragmental charge transfer upon excitation resulting in substantial delocalization of the positive charge.
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| Date |
2017-06-11T06:13:45Z
2017-06-11T06:13:45Z 2013 |
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| Type |
Article
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| Identifier |
Investigations of solvatochromism of 2-(3-coumaroyl)-benzopyrylium dye and its di-substituted derivatives / E.V.Sanin, A.I.Novikov, A.D.Roshal // Functional Materials. — 2013. — Т. 20, № 3. — С. 366-372. — Бібліогр.: 20 назв. — англ.
1027-5495 DOI: dx.doi.org/10.15407/fm20.03.366 http://dspace.nbuv.gov.ua/handle/123456789/120092 |
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| Language |
en
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| Relation |
Functional Materials
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| Publisher |
НТК «Інститут монокристалів» НАН України
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