کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6598123 1423877 2018 25 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and photophysical properties of blue-emitting fluorescence dyes derived from naphthalimide derivatives containing a diacetylene linkage group
ترجمه فارسی عنوان
سنتز و خواص فتوفیزیکی رنگهای فلورسانس آبی رنگ مشتق شده از مشتقات نفتالیمید حاوی گروه پیوند دیاستیلن
کلمات کلیدی
نفتالیمید، پیوند دیاکتیلن، فلورسانس آبی، فیلم تبدیل نور، فیلم کشاورزی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
Four naphthalimide-based dyes with a diacetylene linkage at the 3- or 4-position were synthesized to improve the thermal stability of the fluorescence dye as well as the efficiency of fluorescent emission at blue region. The absorption and fluorescence properties of the synthesized dyes were also investigated. The geometries and molecular orbitals of the dyes prepared were simulated using by density functional theory and time-dependent density functional theory using Gaussian 09. Furthermore, the suitability of the dyes for application in light-conversion films was examined. N-Phenyl groups were found to have a greater effect on the fluorescence of naphthalimide-based dyes than analogue containing an N-alkyl group. In addition, investigation of the effect of diacetylene linkages at the 3- or 4-positions of naphthalimide-based dyes showed that the fluorescence was influenced by the electron-donating effect of the diacetylene linkage which could afford more conjugation of π orbitals of the dyes. Four blue fluorescence dyes derived from 1,8-naphthalimide containing a diacetylene linkage were synthesized and then coated in PE film. The photophysical properties were analyzed using density functional theory (DFT) calculations, and excitations from the highest occupied molecular orbitals (HOMOs) to the lowest unoccupied molecular orbitals (LUMOs) of the dyes were simulated at the B3LYP/6-31G level of theory via the Gaussian 09 suite of programs. Using these methods, the influences of the position of the ethynyl linkages, alkyl groups, and phenyl groups on the electronic and fluorescence properties of the dyes were also clarified.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 158, November 2018, Pages 353-361
نویسندگان
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