Chemical Society Reviews· 2012Q1· Review
Excited-state proton coupled charge transfer modulated by molecular structure and media polarization
- 758citations
- Q1SCImago
- 2012year
Short summary
Charge and proton transfer in excited organic dyes can be coupled and modulated by molecular structure and surrounding media, enabling control over reaction rates, directions, and emission spectra for applications in fluorescence sensing and imaging.
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Key points
- Excited-state charge and proton transfer in organic dyes can be coupled in various ways.
- Reaction timescales, directions, and equilibrium can be influenced by molecular structure and media polarization.
- Control over these processes allows for tuning of emission spectral features.
- Applications include advanced fluorescence sensing and imaging.
AI-generated from the title and abstract; the full text is not read.
Abstract
Charge and proton transfer reactions in the excited states of organic dyes can be coupled in many different ways. Despite the complementarity of charges, they can occur on different time scales and in different directions of the molecular framework. In certain cases, excited-state equilibrium can be established between the charge-transfer and proton-transfer species. The interplay of these reactions can be modulated and even reversed by variations in dye molecular structures and changes of the surrounding media. With knowledge of the mechanisms of these processes, desired rates and directions can be achieved, and thus the multiple emission spectral features can be harnessed. These features have found versatile applications in a number of cutting-edge technological areas, particularly in fluorescence sensing and imaging.
The authors' abstract, as published at the source. Chemical Society Reviews, 2012 · DOI ↗
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Field: Physical and Theoretical Chemistry
Physical and Theoretical ChemistryChemistry