کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9776245 1509483 2005 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of C60-diphenylaminofluorene dyads with two-photon absorbing characteristics
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Synthesis of C60-diphenylaminofluorene dyads with two-photon absorbing characteristics
چکیده انگلیسی
Linear A-sp3-D molecular conjugates as 9,9-dialkyl-2-diphenylaminofluorene (DPAF-C,)-C60 monoadducts were demonstrated using methanoketo unit as a linker to bridge the DPAF donor moiety and the fullerene acceptor chromophore together within a short distance of roughly 2.0 Å. Target products of C60-diphenylaminofluorene dyads C60(>DPAF-C2) and C60(>DPAF-C18) were synthesized using Bingel cycloproanation reaction from the corresponding 7-α-bromoacetyl-9,9-dialkyl-2-diphenylaminofluorene precursors. Both dyads C60(>DPAF-C2) and C60(>DPAF-C18) were characterized by spectroscopic methods and simultaneous two-photon excitation measurements, showing large two-photon absorption cross-sections in the nanosecond regime.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 154, Issues 1–3, 22 September 2005, Pages 185-188
نویسندگان
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