کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4754168 | 1417602 | 2017 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel fluorescent sensor for Al3+ based on a new diarylethene with a naphthalimide unit
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A new fluorescent sensor for Al3+ based on a photochromic diarylethene with a naphthalimide unit has been synthesized. Its photochromic and fluorescent properties with UV/Vis light and Al3+/EDTA were investigated systematically in methanol. The fluorescent sensor was highly selective toward Al3+ with obvious emission intensity change (enhanced more than 20-fold) and color change (dark to orange-yellow). The Job's plot showed the 1:1 complex of the sensor with Al3+. Moreover, the complexation mechanism of the sensor with Al3+ was confirmed by the ESI-MS and 1H NMR titration experiment. The binding constant (Ka) was 2.55 Ã 105 molâ1 L and the limit of detection of the sensor for Al3+ was calculated to be 1.75 Ã 10â7 mol Lâ1. In addition, the metal-responsive fluorescence behavior of the sensor was applied successfully to the construction of molecular logic circuit.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 338, 1 April 2017, Pages 192-200
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 338, 1 April 2017, Pages 192-200
نویسندگان
Lili Li, Hui Li, Gang Liu, Shouzhi Pu,