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2010 | 8 | 2 | 347-355
Tytuł artykułu

Structure and spectal properties of cinnamoyl pyrones and their vinylogs

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The 1H-NMR and quantum chemical analysis of the stability of tautomers of cinnamoyl pyrone derivatives and vinylogs has been studied. The relationship between the structure of the most stable tautomer and its spectral properties has been investigated. It has been determined that the tautomer of highest stability (88–100 molar %) has an α-pyrone structure and exhibits a trans-conformation in the cinnamoyl fragment. An intense fluorescence of dyes has been observed in non-polar solvents with cinnamoyl fragments having electron-donating substituents or several double bonds in the polymethine chain. A gradient in solvent polarity resulted in fluorescence quenching which permits the use of the dyes as intensometric fluorometric probes for medium polarity examination. [...]
Wydawca

Czasopismo
Rocznik
Tom
8
Numer
2
Strony
347-355
Opis fizyczny
Daty
wydano
2010-04-01
online
2010-03-23
Twórcy
  • Department of Physical Organic Chemistry, Institute of Chemistry at Kharkov National University, Kharkov, 61077, Ukraine
  • Danilevskii Institute of Endocrine Pathology Problems, Ukrainian Academy of Medical Sciences, Kharkov, 61002, Ukraine
  • Danilevskii Institute of Endocrine Pathology Problems, Ukrainian Academy of Medical Sciences, Kharkov, 61002, Ukraine
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-009-0138-4
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