کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1230485 1495247 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spectral studies of multi-branched fluorescence dyes based on triphenylpyridine core
ترجمه فارسی عنوان
مطالعات طیفی رنگهای فلورسانس چند شاخه ای بر پایه هسته ترفنیل پرییدین
کلمات کلیدی
ترفتنیل پرییدین، ترفنیلامین، فلورسنت، ولتامتری سیسیک، محاسبه شیمیایی، الکتروشیمیایی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


• New fluorescence dyes based on triphenylpyridine were synthesized.
• Compounds exhibited efficient emission from blue to green with high quantum yields.
• HOMO/LUMO energy levels were obtained by CV and theoretical calculation.
• The effects of solvents on the fluorescence characteristics were investigated.
• All of the compounds possess of suited HOMO ranges (−5.56 to −5.70 eV).

A series of novel triphenylpyridine-containing triphenylamine derivatives have been carefully designed and prepared in good yields using the stepwise route reactions. The relationship of photoluminescence property and structure of compounds 9–13 was systematically investigated via UV–vis, fluorescence, thermogravimetric and electrochemical analyzer. The highest occupied molecular orbital and the lowest unoccupied molecular orbital distributions of compounds 9–13 were calculated by density functional theory method. The high fluorescence quantum yields, desirable the highest occupied molecular orbital levels and high thermal stability of compounds 9–13 indicate that the linkage of triphenylpyridine and triphenylamine is an efficient means to enhance hole-transporting ability and fluorescent quantum yield.

New framework triphenylpyridine derivatives containing triphenylamine groups were synthesized and the relationship of photoluminescence property and structure were investigated. Quantum chemical calculations were used to obtain optimized ground-state geometry, spatial distributions of the HOMO, LUMO levels of the compounds.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 121, 5 March 2014, Pages 355–362
نویسندگان
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