1 Ocak 2001 Dergi makalesi Açık Erişim

Klymchenko, AS; Ozturk, T; Pivovarenko, VG; Demchenko, AP

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{
  "@context": "https://schema.org/", 
  "@id": 95587, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "name": "Klymchenko, AS"
    }, 
    {
      "@type": "Person", 
      "name": "Ozturk, T"
    }, 
    {
      "@type": "Person", 
      "name": "Pivovarenko, VG"
    }, 
    {
      "@type": "Person", 
      "name": "Demchenko, AP"
    }
  ], 
  "datePublished": "2001-01-01", 
  "description": "With the focus of designing new fluorescent probes, four new 3-hydroxy-chromone derivatives bearing benzofuran and naphthofuran groups were synthesized. They show bathochromic absorption shifts relative to 3-hydroxyflavone with the ability of retention to display the excited-state proton transfer. Disruption of the planarity by the methyl group in the furan ring leads to a decrease of both the extinction coefficient and the contribution of long wavelength absorption band, while molecules without a methyl group showed two distinct absorption bands. Shifts to longer wavelengths are also observed in fluorescent spectra, and the absence of the methyl group results in a dramatic increase of fluorescence quantum yield and lifetime. Of the extended 3-hydroxychromone derivatives, 3-hydroxy-2-naphtho[2,1-b]furan-2-yl-chromone has shown comparable, and in some cases better, absorption and fluorescence properties than the 3-hydroxychromones synthesized so far, which make it a highly promising candidate as molecular probe for analytical chemistry, biophysics, and cellular biology.", 
  "headline": "Synthesis and spectroscopic properties of benzo- and naphthofuryl-3-hydroxychromones", 
  "identifier": 95587, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Synthesis and spectroscopic properties of benzo- and naphthofuryl-3-hydroxychromones", 
  "url": "https://aperta.ulakbim.gov.tr/record/95587"
}