Blue luminescent zinc(II) complexes of 2,6-bis[1-(2,6-diisopropylphenylimino)ethyl]pyridine and 2,6-bis[1-(2,6-dimethylphenylimino)ethyl]pyridine

被引:20
作者
Fan, RQ [1 ]
Zhu, DS [1 ]
Ding, H [1 ]
Mu, Y [1 ]
Su, Q [1 ]
Xia, H [1 ]
机构
[1] Jilin Univ, Sch Chem, Key Lab Supramol Struct & Mat, Minist Educ, Changchun 130012, Peoples R China
基金
中国国家自然科学基金;
关键词
bis(imino)pyridyl ligands; zinc complexes; crystal structure; blue luminescence;
D O I
10.1016/j.synthmet.2004.12.016
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Two new Zn(II) complexes of, 2,6-bis[1-(2,6-diisopropylphenylimino)ethyl]pyridine (L-1), 2,6-bis[1-(2,6-dimethylphenylimino)ethyl]pyridine (L-2) were synthesized. These two complexes have the formulas Zn(L-1)Cl-2 (1) and Zn(L-2)(Cl2CH3CN)-C-. (2), respectively. Crystal structures of complexes 1 and 2 were determined by single-crystal X-ray diffraction. Crystallographic studies on I and 2 reveal both complexes to be five-coordinate with geometries that can be best described as distorted trigonal bipyramidal. Complexes 1 and 2 have blue luminescence at room temperature in solution and the solid state. The blue luminescence of the complexes is due to pi* -> pi* Tr transition centered on the ligands. The Zn(II) centers play a key role in enhancing fluorescent emission of the ligands. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:135 / 141
页数:7
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