Intriguing multichannel photoinduced electron transfer in lanthanide(iii)–diphenylamine systems

2015 ◽  
Vol 17 (35) ◽  
pp. 23214-23225 ◽  
Author(s):  
Poonam Verma ◽  
Ramesh M. Sawant ◽  
Haridas Pal
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Electronic States ◽  
Transfer Mechanism ◽  
Lanthanide Ions ◽  
Electron Transfer Mechanism ◽  
Trivalent Lanthanide

Trivalent lanthanide ions interact with excited diphenylamine through the photoinduced electron transfer mechanism intriguingly engaging their multiple vacant electronic states.

Novel anthracene- and pyridine-containing Schiff base probe for selective “off–on” fluorescent determination of Cu2+ ions towards live cell application

2016 ◽  
Vol 40 (7) ◽  
pp. 6101-6108 ◽  
Author(s):  
Turibius Simon ◽  
Muthaiah Shellaiah ◽  
Venkatesan Srinivasadesikan ◽  
Ching-Chang Lin ◽  
Fu-Hsiang Ko ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Schiff Base ◽  
Photoinduced Electron Transfer ◽  
Transfer Mechanism ◽  
Live Cell ◽  
Live Cells ◽  
Electron Transfer Mechanism

A simple anthracene-based AP probe was synthesized to detect Cu2+ ions, via the photoinduced electron transfer mechanism, in live cells.

Rational design of a boron-dipyrromethene-based fluorescent probe for detecting Pd2+ sensitively and selectively in aqueous media

The Analyst ◽  
2019 ◽  
Vol 144 (4) ◽  
pp. 1260-1264 ◽  
Author(s):  
Yannan Li ◽  
Li Yang ◽  
Mengqi Du ◽  
Guanjun Chang
Keyword(s):  
Electron Transfer ◽  
Fluorescent Probe ◽  
Photoinduced Electron Transfer ◽  
Rational Design ◽  
Aqueous Media ◽  
Transfer Mechanism ◽  
Electron Transfer Mechanism ◽  
Boron Dipyrromethene

A novel fluorescent probe for Pd2+ based on the BODIPY fluorophore exploiting the PET (Photoinduced Electron Transfer) mechanism was designed and successfully synthesized.

Article

1999 ◽  
Vol 77 (10) ◽  
pp. 1655-1670 ◽  
Author(s):  
Dino Mangion ◽  
Donald R Arnold
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Photochemical Reactions ◽  
Transfer Mechanism ◽  
Radical Ions ◽  
Reaction Conditions ◽  
Electron Transfer Mechanism ◽  
Photochemical Reactivity ◽  
Bond Homolysis

The photochemical reactivity of a series of 4-halobenzonitriles and 4-haloanisoles with 1,1-diphenylethene in a nucleophilic solvent (methanol) has been investigated. Analysis of the photochemical reactions involving the 4-halobenzonitriles revealed formation of alkene-methanol adducts, such as 1-methoxy-2,2-diphenylethane, 1-methoxy-2,2-diphenylethene, and 1,1-dimethoxy-2,2-diphenylethane, indicative of a photochemical electron-transfer mechanism. These products were not significant in the photochemical reactions involving the 4-haloanisoles. Both the 4-halobenzonitriles and the 4-haloanisoles produced an arene-alkene-methanol Markovnikov adduct, 1-aryl-2-methoxy-2,2-diphenylethane (aryl = 4-cyanophenyl or 4-methoxyphenyl). This compound was shown to undergo an acid-catalysed elimination to 1-aryl-2,2-diphenylethene under the reaction conditions, which subsequently underwent a 6pi-electrocyclization to the 3-substituted(cyano or methoxy)-9-phenylphenanthrene. Possible mechanisms for the observed reactivity are discussed and evaluated.Key words: photochemistry, photoinduced electron transfer, bond homolysis, radical ions, radicals, exciplexes.

Sign in / Sign up

Export Citation Format

Share Document