Nonradiative inter- and intramolecular energy transfer from the aromatic donor anisole to a synthesized photoswitchable acceptor system
作者: Munmun BardhanSudeshna BhattacharyaTapas MisraRupa MukhopadhyayAsish DeJoydeep ChowdhuryTapan Ganguly
作者单位: 1Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
刊名: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2009, Vol.75 (2), pp.647-655
来源数据库: Elsevier Journal
DOI: 10.1016/j.saa.2009.11.034
关键词: Energy transferPhotoswitchable systemTime resolved fluorescenceExcited conformersMultichromophoric system
原始语种摘要: Abstract(#br)We report steady state and time resolved fluorescence measurements on acetonitrile ( ACN ) solutions of the model compounds, energy donor anisole ( A ) and a photoswitchable acceptor N,N′-1,2-phenylene di-p-tosylamide ( B ) and the multichromophore ( M ) where A and B are connected by a spacer containing both rigid triple (acetylenic) and flexible methylene bonds. Both steady state and time correlated single photon counting measurements demonstrate that though intermolecular energy transfer, of Forster type, between the donor and acceptor moieties occurs with rate 10 8 s −1 but when these two reacting components are linked by a spacer (multichromophore, M ) the observed transfer rate (∼10 11 s −1 ) enhances. This seemingly indicates that...
全文获取路径: Elsevier  (合作)
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关键词翻译
关键词翻译
  • acceptor 收体
  • intramolecular 分子内的
  • anisole 茴香醚
  • energy 能量
  • donor 给予体
  • fluorescence 荧光
  • conformers 随变生物
  • intermolecular 分子间的
  • aromatic 香的
  • acetonitrile 乙腈