کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5399429 | 1505905 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydrazone based luminescent receptors for fluorescent sensing of Cu2+: Structure and spectroscopy
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Two new luminescent hydrazones, HL1 and HL2 were investigated for selective and sensitive fluorescent recognition of Cu2+ in aqueous medium (CH3CN/H2O (1:4, v/v) solvent system) with a 1:1 binding stoichiometry. The emission peak of HL (λem=405 nm), undergoes significant quenching upon complexation with Cu2+. The quantum yields for the receptors and in situ formed Cu2+ complexes were determined. The absorption ratiometric analysis was carried out in presence of various metal ions to confirm the selectivity of the receptors towards Cu2+. They were able to detect Cu2+ with a ~0.9 µM detection limit as indicated by fluorimetric measurements. The molecular structures of the receptors were determined by single crystal X-ray diffraction analysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 155, November 2014, Pages 185-190
Journal: Journal of Luminescence - Volume 155, November 2014, Pages 185-190
نویسندگان
Soma Mukherjee, Palash Mal, Helen Stoeckli-Evans,