Structure and luminescence studies of tris(nitrato-O,O′) bis(2,2′-bipyridyl-N,N′)dysprosium(III) complex

被引：1
|
作者：
Kusrini, Eny [1 ]
Saleh, Muhammad I. [2 ]
Fun, Hoong K. [3 ]
机构：
[1] Univ Indonesia, Dept Chem Engn, Fac Engn, Depok 16924, Indonesia
[2] Univ Sains Malaysia, Sch Chem Sci, George Town 11800, Malaysia
[3] Univ Sains Malaysia, Sch Phys, Xray Crystallog Unit, George Town 11800, Malaysia
来源：
JOURNAL OF LUMINESCENCE | 2010年 / 130卷 / 10期
关键词：
Crystal structure; Dysprosium; 2,2 '-Bipyridyl; Photoluminescence; LANTHANIDE COMPLEXES; 2,2'-BIPYRIDINE; 2,2'-DIPYRIDYL; CRYSTAL;
D O I：
10.1016/j.jlumin.2010.04.015
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The title compound, [Dy(NO(3))(3)(bipy)(2)], is isostructural with the La, Pr, Nd, Eu and Lu analogues where bipy=2, 2'-bipyridyl. The Dy complex was crystallized in orthorhombic with space group Pbcn. The Dy(III) ion was coordinated with the two bipy ligands and three nitrate anions giving a ten coordination number. Measurements of the molar conductance in ethanol and water solutions indicate that the complex is non-electrolyte. A comparative study of the emission of [Dy(NO(3))(3)(bipy)(2)] complex with those of the adduct mixture of bipy and Dy at a 1:1 ratio, has been investigated. In the solid state, photoluminescence (PL) spectrum of the complex had sharp emission bands corresponding to the (4)F(9/2)->(6)H(15/2) (476.5 and 482 nm), (4)F(9/2)->(6)H(13/2)(572.6 and 573.8 nm), (4)F(9/2)->(6)H(11/2) (661.6 nm) and (4)H(3/2)->(6)H(15/2) (961.0 nm) transitions. The hypersensitive peak of the complex has the yellow emission stronger than the blue emission in the solid state as well as in the solution. The complex has a good thermal stability due to the role of pi-pi interactions stacking. (C) 2010 Published by Elsevier B.V.
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收藏
页码：1813 / 1817
页数：5
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