کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
175696 458919 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and evaluation of the chromo-fluorogenic recognition ability of imidazoquinoline derivatives toward ions
ترجمه فارسی عنوان
سنتز و ارزیابی توانایی تشخیص کروم و فلوروژن مشتقات مایع آمینازووینولین نسبت به یونها
کلمات کلیدی
ایزادو زینولین ها، شناخت کاتیون، تشخیص آنیون، رنگ، فلورسانس، انتقال پروتون
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• Four imidazoquinoline probes were prepared.
• Fluoride induced deprotonation that was reflected in colour and emission changes.
• Hg2+, Cu2+, Co2+, Fe3+, Fe2+, Zn2+, Pb2+, Cd2+, Cr3+ and Al3+ induced quenching of fluorescence.

Four imidazoquinolines functionalized with different carbocycles and heterocycles have been synthesized and characterized. Acetonitrile solutions of the four receptors presented absorption bands in the 330–370 nm range. The four probes were also emissive with fluorescence bands in the 390–460 nm interval. In a first step, the chromo-fluorogenic behaviour of the four probes was evaluated in the presence of selected anions. Addition of F− induced the appearance of a new red-shifted absorption band together with a moderate quenching of the fluorescence in all four receptors. In a second step, the UV–visible and emission behaviour of the four receptors in the presence of cations was tested. Addition of Hg2+, Cu2+, Co2+, Fe3+, Fe2+, Zn2+, Pb2+, Cd2+, Cr3+ and Al3+ induced a similar optical change in all four receptors (appearance of a broad red-shifted absorption band together with a remarkable quenching of the emission band).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 122, November 2015, Pages 50–58
نویسندگان
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