The Chemiluminescence, Fluorescence and Absorption Spectra of 2,4,5-Triphenylimidazole

Abstract
The chemiluminescence spectra of 2,4,5-triphenylimidazole (lophine) in 1n ethanolic potassium hydroxide exhibited with oxygen and with hydrogen peroxide at 70°C have been measured. Both spectra spread, over about 470–660 mμ; the maximum wavelengths are 545 mμ and 555 mμ respectively. The fluorescence spectra of solutions of lophine have been measured at 70°C. The maximum wavelengths are as follows: 371 mμ, 388 mμ (ethanol), 441 mμ (1n KOH–C2H5OH) and 391 mμ (1 n CH3COOH–C2H5OH). The absorption spectra of lophine have also been measured: λmax 303 mμ (ε= 2.56× 1O4) in ethanol: λmax 326 mμ (ε=3.33×104) 1n ethanol potassium hydroxide, and λmax 295 mμ (ε=2.03×104) in a 1n solution of acetic acid in ethanol.

This publication has 3 references indexed in Scilit: