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      Selective manipulation of ICT and PET processes in styryl-bodipy derivatives: Applications in molecular logic and fluorescence sensing of metal ions

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      Author
      Bozdemir, O. A.
      Guliyev, R.
      Buyukcakir, O.
      Selcuk, S.
      Kolemen, S.
      Gulseren, G.
      Nalbantoglu, T.
      Boyaci, H.
      Akkaya, E. U.
      Date
      2010
      Source Title
      Journal of the American Chemical Society
      Print ISSN
      0002-7863
      Electronic ISSN
      1520-5126
      Volume
      132
      Issue
      23
      Pages
      8029 - 8036
      Language
      English
      Type
      Article
      Item Usage Stats
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      213
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      Abstract
      Remarkably versatile chemistry of Bodipy dyes allows the design and straightforward synthesis of multivalent-multitopic derivatives, which, with judicious selection of metal ion-ligand pairs based on known affinities, affords control and manipulation of photoinduced electron transfer and internal charge transfer processes as desired. We have demonstrated that metal ions acting as modulators (or inputs, in digital design parlance) can generate absorbance changes in accordance with the operation of a half-adder. In addition, an AND logic gate in the emission mode was delivered using a different binucleating arrangement of ligands. A molecular equivalent of a three-input AND logic gate was also obtained exploiting differential binding affinities of metal ions for different ligands. The results suggest that different metal ions can be used as nonannihilating inputs, selectively targeting various ligands incorporated within a single fluorophore, and with careful design, diverse photophysical processes can be selectively modulated, resulting in a range of signals, useful in molecular logic design, and offering an enticing potential for multianalyte chemosensors.
      Keywords
      Absorbance change
      Chemo-sensors
      Differential binding
      Digital designs
      Emission modes
      Fluorescence sensing
      Half-adder
      Multi-analytes
      Multi-topic
      PET process
      Photophysical process
      Versatile chemistry
      Binding energy
      Charge transfer
      Chelation
      Electron transitions
      Ion exchange
      Logic design
      Logic gates
      Metal ions
      Metals
      Ligands
      Electron transport
      Fluorescence
      Internal charge transfer
      Ion transport
      Photoinduced electron transfer
      Permalink
      http://hdl.handle.net/11693/22293
      Published Version (Please cite this version)
      http://dx.doi.org/10.1021/ja1008163
      Collections
      • Department of Chemistry 635
      • Institute of Materials Science and Nanotechnology (UNAM) 1890
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