title: Synthesis and Fluorescent Behaviour of 2-Aryl-4,5-dihydro-1H-1,2,4-triazoles.
abstract: A series of new 4,5-dihydro-1H-1,2,4-triazoles was synthesized from amidrazones and acetylenedicarboxylic acid esters in the presence of pyridine in toluene. The synthesized compounds were characterized by1H,13C NMR, FT-IR spectral analyses and XRD data. Optical studies revealed that most of the compounds reported here exhibited emission of blue or green-yellow light upon irradiation in acetone and showed Stokes shifts in the region of 70-96 nm and quantum yields of up to 45%. The interpretation of the experimental findings was supported by state-of-the-art quantum mechanical calculations.
authors.affiliation: Ural Federal University , 19 Mira Street, Yekaterinburg 620002, Russia.
authors.forename: Alexandra I
authors.initials: AI
authors.lastname: Eliseeva
authors.affiliation: Ural Federal University , 19 Mira Street, Yekaterinburg 620002, Russia.
authors.forename: Olga O
authors.initials: OO
authors.lastname: Nesterenko
authors.affiliation: I. Ya. Postovsky Institute of Organic Synthesis , 22 S. Kovalevskaya Street, Yekaterinburg 620137, Russia.
authors.forename: Pavel A
authors.initials: PA
authors.lastname: Slepukhin
authors.affiliation: Scuola Normale Superiore , Piazza dei Cavalieri 7, 56126 Pisa, Italy.
authors.forename: Enrico
authors.identifier: 0000-0002-4614-1568
authors.initials: E
authors.lastname: Benassi
authors.affiliation: Ural Federal University , 19 Mira Street, Yekaterinburg 620002, Russia.
authors.forename: Nataliya P
authors.identifier: 0000-0002-2509-7916
authors.initials: NP
authors.lastname: Belskaya