title: Structural and photophysical studies on ternary Sm(III), Nd(III), Yb(III), Er(III) complexes containing pyridyltriazole ligands.
abstract: Two bidentate pyridine-triazole ligands (3-(pyridine-2-yl)-5-phenyl-1,2,4-triazole (L1) and 5-phenyl-2-(2'-pyridyl)-7,8-benzo-6,5-dihydro-1,3,6-triazaindolizine (L2)), have been synthesized and used for Ln(Dbm)3(Ln = Sm(III), Nd(III), Yb(III) and Er(III)) coordination. The structures of the ligands and resulting Sm(III) complex were determined in the solid state by X-ray diffraction. The title complexes were characterized by UV, fluorescent, IR-spectroscopy and thermogravimetric and elemental analyses. Photophysical studies on the Ln(III) complexes were carried out showing luminescence in the region typical for Ln(III). The effect of various factors on the enhancement luminescence of complexes is discussed.
authors.affiliation: Taurida National V.I. Vernadsky University, Simferopol 95007, Ukraine.
authors.forename: Alexey N
authors.initials: AN
authors.lastname: Gusev
authors.forename: Victor F
authors.initials: VF
authors.lastname: Shul'gin
authors.forename: Svetlana B
authors.initials: SB
authors.lastname: Meshkova
authors.forename: Miki
authors.initials: M
authors.lastname: Hasegawa
authors.forename: Grigory G
authors.initials: GG
authors.lastname: Alexandrov
authors.forename: Igor L
authors.initials: IL
authors.lastname: Eremenko
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Linert
keywords: 1,2,4-Triazole derivatives; Ln(III) complex; Luminescence; X-ray study