Luminescence electrochemi

Emission spectra have been recorded for four aryl-substituted isoindoles rmder conditions of electrochemical stimulation. Electrochemiluminescence, which was easily visible in daylight, was measured at a concentration of 2-10 mM of emitter in V jV-dimethylformamide with platinum electrodes. Emission spectra due to electrochemi-luminescence and to fluorescence were found to be identical, and quantum yields for fluorescence were obtained by irradiation with a calibrated Hght source. Values are given in Table X. As with peak potentials determined by cyclic voltammetry, the results of luminescence studies are interpreted in terms of radical ion intermediates. ... 

DPAs and 1-phenyl-1-alkynes show intense photo- and electroluminescences. A systematic investigation on the luminescence of poly(DPAs) has revealed that these polymers exhibit photoluminescence around 530 nm and electroluminescence around 550 nm. In a similar way, poly(l-phenyl-1-alkynes) photochemically and electrochemi-cally emit strong lights with spectral maxima located around 455 and 470 nm, respectively. Green and blue emissions are observed from the electroluminescent devices using poly(DPAs) and poly(l-phenyl-1-alkynes) as the emission layers, respectively. ... 

Gao, Y., Xiang, Q., Xu, Y., Tian, Y, and Wang, E., The use of CE-electrochemi-luminescence with ionic liquid for the determination of bioactive constituents in Chinese traditional medicine. Electrophoresis, Tl, 4842-4848, 2006. 

A persistent cation-radical 92 results from the oxidation of tetraphenyl-tliiophene. An ESR spectrum and g-value were recorded for this and other 4-substituted phenyl derivatives, although no assignments were made. The electrochemical characteristics of 92 have been investigated by Libert and Caullet, " and one of these authors has investigated the electrochemi-luminescent properties of systems involving 92. 

Marcus Theory in the Description of Electrochemi luminescence Phenomena... 

Yin J, Guo W, Du Y, Wang E (2006) Facile separation and determination of Aconitine alkaloids in traditional Chinese medicines by CE with tris(2,2 -bipyridyl) ruthenium(II)-based electrochemi-luminescence detection. Electrophoresis 27(23) 4836-4841. 

Garber, E.A., O Brien, T.W, 2008. Detection of ricin in food using electrochemi-luminescence-based technology. J. AOAC Int. 91, 376-382. 

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