کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5400651 1505919 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis, crystal structure and photophysical properties of 5-mono- and 5,9-bis-(arylethynyl)-functionalized pyrenes
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Synthesis, crystal structure and photophysical properties of 5-mono- and 5,9-bis-(arylethynyl)-functionalized pyrenes
چکیده انگلیسی
7-tert-Butyl-1,3-dimethylpyrene 5-carbaldehyde and 7-tert-butyl-1,3-dimethylpyrene 5,9-dicarbaldehyde were converted to the corresponding (4-methoxyphenylethynyl)pyrenes by the Wittig reaction with 4-methoxyphenyl methyl phosphonium ylide followed by bromination and dehydrobromination. Single-crystal X-ray analysis of 7-tert-butyl-5-(4-methoxyphenylethynyl)-1,3-dimethylpyrene revealed that there is a 1-D, slipped, face-to-face motif with off-set, head-to-tail stacked columns, which are clearly influenced by the single, bulky, tert-butyl group in the pyrene ring at the 7-position. Detailed studies on photophysical properties and electrochemical characteristics in solutions strongly indicate that they might be promising candidates for organic optoelectronic applications, such as organic light-emitting devices (OLEDs) or as models for investigating the fluorescent structure-property relationship of the alkynyl-functionalized pyrene derivatives.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 141, September 2013, Pages 111-120
نویسندگان
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