Producción Científica Profesorado

Synthesis and photophysical properties of highly fluorescent 2-aryl-6-(aryleneethynylene)-1H-indoles



Alvarez Hernandez, Alejandro

2016

Mariana Flores-Jarillo, Alejandro Alvarez-Hernandez, Rosa Ángeles Vazquez-García, Eduardo Arias , Ivana Moggio, José Román Torres. Synthesis and photophysical properties of highly fluorescent 2-aryl-6-(aryleneethynylene)-1H-indoles. Dyes and Pigments2016, 133, 41?50http://dx.doi.org/10.1016/j.dyepig.2016.05.017


Abstract


Nine novel 2-aryl-6-(aryleneethynylene)-1H-indoles were prepared by one pot Sonogashira cross-coupling in DMSO and fluoride promoted cyclization followed by N-alkylation. The photophysical properties of these compounds are described. Absorption and excitation spectra of these compounds were independent of the solvent polarity, while their emission spectra showed a pronounced dependence. Fluorescence quantum yields in solution were very high and decreased with solvent polarity; possible processes that account for excessive values of ? are discussed. Cyclic voltammetry studies indicate irreversible redox processes and DFT calculations suggest they occur in the indole segment.



Producto de Investigación




Artículos relacionados

Synthesis, crystal structures, and quadratic nonlinear optical properties in a series of pushpull bo...

Preparation of N-aryl-substituted spiro-?-lactams via Staudinger cycloaddition

A flexible access to highly functionalised boronates

3-Benzoyl-2-isopropyl-4-alkyloxazolidin-5-ones as Efficient and Inexpensive Sources of Enantiopure ?...

Diastereoselective alkylation of chiral glycinate derivatives containing the ?-phenylethyl group.

Study of the reactivity of squarylferrocenes. Addition of amines and aminoesters

Phenylboronic acid catalyzed-cyanide promoted, one-pot synthesis of 2-(2-hydroxyphenyl)benzoxazole d...

Diastereoselective Synthesis of Spiro-?-lactams via Staudinger Reaction

Effect of TiO2Al2O3 SolGel Supports on the Superficial Ni and Mo Species in Oxidized and Sulfided Ni...

3-Benzoyl-2-isopropyl-4-alkyloxazolidin-5-ones as Efficient and Inexpensive Sources of Enantiopure ?...