کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7840616 | 1505869 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
New Eu(III)-based complex with a C1 symmetric chiral ligand: A spectroscopic study
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The synthesis of the new chiral ligand N, Nâ²-bis[(2-quinolylmethyl]-cyclohexanediamine-N-tert-butylacetate Nâ²-acetic acid and its Eu complex is presented. The spectroscopic investigation of the complex has been performed both in the solid state and in solution of ethanol. Thanks to the heteroaromatic quinoline ring, an efficient ligand to europium energy transfer (antenna effect) is possible. The low symmetry of the ligand (C1 point symmetry) guarantees a strongly distorted Eu(III) geometric environment and the predominance of the 5D0â7F2 hypersensitive band, in the Eu(III) luminescence emission spectrum. As for the majority of the Eu(III)-based coordination compounds, the observed lifetime of the 5D0 excited state of the complex under investigation falls in the range of ms. Further, its good solubility in polar protic solvent (ethanol) and the excitation around 320Â nm, which minimizes interfering excitation of chromophores in biological media, candidates this molecule for applications in the biomedical field.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 193, January 2018, Pages 114-118
Journal: Journal of Luminescence - Volume 193, January 2018, Pages 114-118
نویسندگان
Fabio Piccinelli, Chiara De Rosa, Serena Zanzoni, Marco Bettinelli,