86453-48-7Relevant academic research and scientific papers
Electrochemical fluorescence switching properties of conjugated polymers composed of triphenylamine, fluorene, and cyclic urea moieties
Kuo, Cheng-Po,Lin, You-Shiang,Leung, Man-Kit
, p. 5068 - 5078 (2012)
The study of the electrochemical fluorescence switching properties of the conjugated copolymers containing fluorene, triphenylamine, and 1,3-diphenylimidazolidin-2-one moieties is reported. The polymers show high fluorescence quantum yields, excellent thermal stability, and good solubility in polar organic solvents. While the polymer emits blue light under UV irradiation, the fluorescence intensity is quenched upon electrochemical oxidation. The fluorescent behavior can be reversibly switched between nonfluorescent (oxidized) state and strong fluorescence (neutral) state with a high contrast ratio (If/If0) of 16.3. The role of the electrochemical oxidation of the triphenylamine moieties is to generate the corresponding radical cations that lead to fluorescence quenching in the solid matrix.
Extremely Reactive C=C-Double Bonds, II. 1,3-Diphenyl-2-imidazolidineselenone from 1,1',3,3'-Tetraphenyl-Δ2,2'-biimidazolidine and Selenium
Schoenberg, Alexander,Singer, Erich,Stephan, Werner
, p. 2068 - 2073 (2007/10/02)
1,1',3,3'-Tetraphenyl-Δ2,2'-biimidazolidine (1) reacts with metallic selenium to form 1,3-diphenyl-2-imidazolidineselenone (6).The actions of powdered copper, ethyliodide, thiophenol, phenyl magnesiumbromide, phenylisocyanate, and lithium alanate on 6 are described.Some of the unusual mechanisms of these reactions are discussed.
