کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1443918 988182 2008 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Single-component organic conductors based on neutral betainic radicals of N-methyl substituted dioxo- and aminooxo-pyrimido-fused TTFs
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Single-component organic conductors based on neutral betainic radicals of N-methyl substituted dioxo- and aminooxo-pyrimido-fused TTFs
چکیده انگلیسی

New dioxo- and aminooxo-pyrimido-fused tetrathiafulvalene (TTF) derivatives, whose pyrimido-rings are substituted by methyl group, were synthesized. In the crystal structures of their tetrabutylammonium salts, complementary hydrogen-bonds inherent in pyrimido-fused TTF derivatives were inhibited by the methyl substitution, and the crystals were constructed by the segregated motifs of cations and anions. Betainic radicals prepared by one-electron oxidation of tetrabutylammonium salts exhibited relatively high conductivities (ca. 10−4 S cm−1 at room temperature) as single-component organic molecules. The optical measurement of betainic radicals showed considerably low-energy charge-transfer absorption between radical molecules compared to those of conventional TTF systems, indicating the reduction of on-site Coulomb repulsion.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 158, Issue 12, July 2008, Pages 497–505
نویسندگان
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