Dimeric and polymeric [Eu(tta)3L] complexes (tta = thenoyltrifluoroacetonato, L = 4,4′-bipyridine, trans-1,2-bis(4-pyridyl)ethylene, 4,4′-bipyridine-N,N′-dioxide)

被引：0
|
作者：
Seward, C. [1 ]
Wang, S. [1 ]
机构：
[1] Department of Chemistry, Queen's University, Kingston, Ont. K7L 3N6, Canada
来源：
| 2001年 / National Research Council of Canada卷 / 79期
关键词：
Dimers - Ethylene - Hydrogen bonds - Methanol - Polymers - Ultraviolet radiation;
D O I：
10.1139/v01-097
中图分类号：
学科分类号：
摘要：
The reaction of Eu(tta)3 (tta = thenoyltrifluoroacetonato) with 4,4′-bipyridine (bipy), trans-1,2-bis(4-pyridyl)ethylene (bipyete), and 4,4′-bipyridine-N,N′- dioxide (bipyo) yielded three distinct complexes [Eu(tta)3(bipy)(H2O)] (1), [Eu(tta)3(bipyete)(CH3OH)]&middotCH3 OH&middotbipyete (2), and [Eu(tta)3(bipyo)]&middotCH3OH (3), respectively. Compounds 1 and 2 have a hydrogen-bond linked dimer structure, while 3 has a one-dimensional chain structure linked by coordination bonds, which further forms two-dimensional arrays, resulting in an intercalation lattice that hosts methanol guest molecules. In solution compounds 1 and 2 emit a red color, characteristic of Eu(III), when irradiated by UV light, while compound 3 has no emission either in solution or the solid state.
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页码：1187 / 1193
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