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A small-molecular europium complex with anion sensing sensitivity
Wang, Jianwei1,2; Wu, Jiang1,2; Chen, Yanmei3; Wang, Haiping1,2; Li, Yiran1,2; Liu, Weisheng1,2; Tian, Hao1,2; Zhang, Ting1,2; Xu, Jun1,2; Tang, Yu1,2
2012
发表期刊DALTON TRANSACTIONS
ISSN1477-9226
卷号41期号:41页码:12936-12941
文章类型Article
摘要A novel small-molecular europium(III) complex with quinoline derivative has been designed and prepared for anion recognition. This Eu3+ complex displays striking emission changes at 616 nm in response to NO3- and Cl-. What's more, the anion-selective luminescence enhancement is easily detected by the naked eye. UV, luminescence titration experiments and the Job plot analysis revealed that the ligand can form stable 1 : 1 complexes with Eu(NO3)(3) or EuCl3 in CH3CN; log K = 7.10 and 6.76 (295 K), respectively. The crystal structure shows that three oxygen atoms and one nitrogen atom of the ligand are approximately coplanar and wrap around the Eu3+ ion through a semicircle-shaped coordination structure and some unoccupied sites of the central europium ions are available for guest anions in the complexes. Thus, three nitrate ions are located in the gap of the semicircle. It is supposed that the mechanism of luminescence enhancement is of NO3- or Cl- anions squeezing out solvent molecules from the inner coordination sphere.
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]LUMINESCENT LANTHANIDE COMPLEXES ; TERNARY COMPLEX ; SENSORS ; LIGAND ; PROBE ; RECOGNITION ; WATER ; SELECTIVITY ; RECEPTORS ; BIOPROBES
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Inorganic & Nuclear
WOS记录号WOS:000309545100038
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/2077
专题青海盐湖研究所知识仓储
作者单位1.Lanzhou Univ, Key Lab Nonferrous Met Chem & Resources Utilizat, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China
2.Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China
3.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 81008, Peoples R China
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GB/T 7714
Wang, Jianwei,Wu, Jiang,Chen, Yanmei,et al. A small-molecular europium complex with anion sensing sensitivity[J]. DALTON TRANSACTIONS,2012,41(41):12936-12941.
APA Wang, Jianwei.,Wu, Jiang.,Chen, Yanmei.,Wang, Haiping.,Li, Yiran.,...&Tang, Yu.(2012).A small-molecular europium complex with anion sensing sensitivity.DALTON TRANSACTIONS,41(41),12936-12941.
MLA Wang, Jianwei,et al."A small-molecular europium complex with anion sensing sensitivity".DALTON TRANSACTIONS 41.41(2012):12936-12941.
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