کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5398057 1505880 2017 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Zinc(II) bis(dipyrromethenate)s as chemosensors for fluorescent detection of amines
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Zinc(II) bis(dipyrromethenate)s as chemosensors for fluorescent detection of amines
چکیده انگلیسی
It was proposed new highly sensitive «ON-OFF» fluorescent amines trace amounts (1.6x10−6-9.3x10−5 mol/L) sensors in organic media based on binuclear zinc(II) helicates with 2,2′-, 2,3′- and 3,3′- bis(dipyrromethene)s ([Zn2L2]). The results of fluorescence spectral studies of [Zn2L2]in binary mixtures of cyclohexane with amines (pyridine, diethylamine and trimethylamine) were presented. The influence of bis(dipyrromethene) ligands isomerism and electron-donating ability of N-containing co-solvent on the fluorescence quenching efficiency of [Zn2L2] in the presence of amines was discussed. It was determined, that the zinc(II) 3,3′-bis(dipyrromethenate) exhibits the highest fluorescence sensitivity in the amines presence in comparison with 2,3′- and 2,2′-analogs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 181, January 2017, Pages 387-392
نویسندگان
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