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Photoinduced Electron Transfer between Triphenylpyrylium Ion (TPP+) and Certain Phenols
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A. Kathiravan
Published/Copyright:
September 25, 2009
Abstract
The photoinduced interaction between triphenylpyrylium ion (TPP+) and certain phenols were studied in acetonitrile medium by using absorption, steady state and time resolved fluorescence spectroscopic methods. The quenchers used were phenol, o-aminophenol, o-cresol, o-hydroxyphenol, o-chlorophenol, salicylic acid and salicylaldehyde. Linear Stern-Volmer plots were obtained from both steady state and time resolved measurements and also the calculated values of bimolecular quenching rate constants (kq) were matched well. The free energy change (ΔGet) has been evaluated by using Rehm-Weller equation for the confirmation of electron transfer from phenols to TPP+ ion.
Published Online: 2009-9-25
Published in Print: 2008-11-1
© by Oldenbourg Wissenschaftsverlag, München, Germany
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Articles in the same Issue
- Density Functional Study of the Influence of Carbon Doping on the Aluminum-27 and Nitrogen-14 Electric Field Gradient Tensors in (10, 0) Single-Walled Aluminum Nitride Nanotube
- A Novel Solvent-free Electrolyte Based on LiBOB and Acetamide for Electrochemical Capacitors
- Photoinduced Electron Transfer between Triphenylpyrylium Ion (TPP+) and Certain Phenols
- Photoinduced Electron Transfer from Meso-Tetrakis (N-methylpyridyl)porphyrin (TMPyP) to Colloidal CdS
- Hilbert’s Independence Theorem and the Proof of the Second Law of Thermodynamics
