Structural and photophysical studies on ternary Sm(III), Nd(III), Yb(III), Er(III) complexes containing pyridyltriazole ligands

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• 作者：Alexey N. Gusev ; Victor F. Shul¡¯gin ; Svetlana B. Meshkova ; Miki Hasegawa ; Grigory G. Alex ; rov ; Igor L. Eremenko ; Wolfgang Linert
• 关键词：Ln(III) complex ; 1 ; 2 ; 4-Triazole derivatives ; X-ray study ; Luminescence
• 刊名：Polyhedron
• 出版年：2012
• 出版时间：26 October, 2012
• 年：2012
• 卷：47
• 期：1
• 页码：37-45
• 全文大小：895 K

文摘

Two bidentate pyridine-triazole ligands (3-(pyridine-2-yl)-5-phenyl-1,2,4-triazole (lass=""boldFont"">L1) and 5-phenyl-2-(2¡ä-pyridyl)-7,8-benzo-6,5-dihydro-1,3,6-triazaindolizine (lass=""boldFont"">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.