کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1326404 | 1499933 | 2012 | 6 صفحه PDF | دانلود رایگان |
Starlike molecules (5) and (7) that have a triazine unit as a core and arms consisting of an alterative arrangement of an Si–Si bond and bithienylene unit were prepared by the Pd-catalyzed reactions of 2,4,6-tris[5-(1,3-dioxa-4,4,5,5-tetramethyl-2-borolanyl)-2-thienyl]triazine with 5-bromothienylpentamethyldisilane and with 1-(5-bromothienyl)-2-bithienyltetramethyldisilane, respectively. In the UV–vis absorption and fluorescence spectra, 5 and 7 showed absorption maxima in a range of 398–399 nm, and revealed higher fluorescence quantum yields than that of 2,4,6-tris(bithienyl)triazine.
The new starlike molecules were synthesized by the Suzuki coupling reaction. They showed absorption maxima in a range of 398–399 nm, and revealed high fluorescence quantum yields.Figure optionsDownload as PowerPoint slideHighlights
► We have synthesized novel starlike compounds that have a triazine unit as a core.
► They exhibited high quantum yields.
► Silicon plays important role in enhancing the quantum efficiency.
Journal: Journal of Organometallic Chemistry - Volume 702, 1 April 2012, Pages 67–72