کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5269247 | 1385385 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A highly selective fluorescence turn-on detection of Al3+ and Ca2+ based on a coumarin-modified rhodamine derivative
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A fluorescent chemosensor 1 was synthesized containing a coumarin moiety bound to rhodamine B hydrazide. Compound 1 displayed different fluorescence emission responses to Al3+ and Ca2+ ions with high quantum yields (0.64 and 0.15, respectively) and low detection limits (3.0Â ÃÂ 10-8 and 9.4Â ÃÂ 10-8Â M, respectively). The possible binding modes of compound 1 with Al3+ and Ca2+ ion were calculated using a Job plot, HRMS, 1H NMR spectroscopic titration and IR spectroscopy. Moreover, the calcium in 1-Ca2+ could be displaced by Al3+ ions, resulting in another ratiometric sensing signal output, which indicates that 1-Ca2+ could detect Al3+ ions in a ratiometric way. Bioimaging results also demonstrated that compound 1 could act as an intracellular Al3+ ion imaging sensor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 55, Issue 30, 23 July 2014, Pages 4062-4066
Journal: Tetrahedron Letters - Volume 55, Issue 30, 23 July 2014, Pages 4062-4066
نویسندگان
Li Cao, Chunman Jia, Yan Huang, Qi Zhang, Nan Wang, Yonglai Xue, Daolin Du,