Selective manipulation of ICT and PET processes in styryl-bodipy derivatives: Applications in molecular logic and fluorescence sensing of metal ions
Author
Bozdemir, O. A.
Guliyev, R.
Buyukcakir, O.
Selcuk, S.
Kolemen, S.
Gulseren, G.
Nalbantoglu, T.
Boyaci, H.
Akkaya, E. U.
Date
2010Source 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
ArticleItem Usage Stats
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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 changeChemo-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