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      Convergent synthesis and light harvesting properties of dendritic boradiazaindacene (BODIPY) appended perylenediimide dyes

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      Author
      Bozdemir, O. A.
      Yilmaz, M. D.
      Buyukcakir, O.
      Siemiarczuk, A.
      Tutas, M.
      Akkaya, E. U.
      Date
      2010
      Source Title
      New Journal of Chemistry
      Print ISSN
      1144-0546
      Electronic ISSN
      1369-9261
      Volume
      34
      Issue
      1
      Pages
      151 - 155
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      A convergent synthesis methodology, together with "click- chemistry" between azides and terminal alkynes, allows straighforward access to dendritic light harvesting systems. The novel dendrimer reported in this study has eight boradiazaindacene (BODIPY) units at the periphery and a perylenediimide (PDI) dye at the core. We have demonstrated that visible light is effectively collected as a result of the large absorption cross section of the dendrimer and efficiently channeled to the core PDI unit, resulting in a significant antenna effect. While being one of the very few energy transfer systems with a BODIPY and PDI chromophore pair, this novel dendritic molecule is one of the most efficient in light harvesting. The factors that may play important roles as the generation number increases also become apparent when emission characteristics were analyzed in comparison with a lower generation dendrimer.
      Keywords
      Alkyne
      Azide
      Dendrimer
      Absorption
      Chromatophore
      Convergent evolution
      Energy transfer
      Fluorescence spectroscopy
      Light
      Light harvesting system
      Nuclear magnetic resonance spectroscopy
      Photosynthesis
      Permalink
      http://hdl.handle.net/11693/22477
      Published Version (Please cite this version)
      http://dx.doi.org/10.1039/b9nj00380k
      Collections
      • Department of Chemistry 616
      • Institute of Materials Science and Nanotechnology (UNAM) 1831
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