Synthesis and Some Properties of Poly[(tetrabutyldisilanylene)oligo(2,5-thienylenes)].
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Accession number;99A0308721
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| Title;Synthesis and Some Properties of Poly[(tetrabutyldisilanylene)oligo(2,5-thienylenes)]. |
| Author;
SCHNEIDER W
(Kurashiki Univ. Sci. And The Arts, Kurashiki, Jpn)
NAKA A
(Kurashiki Univ. Sci. And The Arts, Kurashiki, Jpn)
ISHIKAWA M
(Kurashiki Univ. Sci. And The Arts, Kurashiki, Jpn)
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Journal Title;Abstr Symp Organomet Chem Jpn
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Journal Code:L0853A
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ISSN:
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VOL.45th;NO.;PAGE.56-57(1998)
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| Figure&Table&Reference; |
| Pub. Country;Japan |
| Language;English |
| Abstract;A series of poly[(tetrabutyldisilanylene)oligo(2,5-thienylenes)n](1-5) with n=3-7 were synthesized. The NiCl2(dppe)-catalyzed cross-coupling reaction of the di-Grignard reagents of 1,2-bis(5-bromothien-2-yl)tetrabutyldisilane with 2,5-dibromothiophene, 2,5'-dibromobithiophene and 2,5"-dibromoterthiophene afforded the corresponding polymers with n=3(Mw=21600, yield 55%), n=4(Mw=11000, yield 45.5%) and n=5(Mw=51000, yield 25%), respectively. The same cross-coupling reaction of 1,2-bis(5'-bromobithien-2yl) tetrabutyldisilane with 2,5'-dibromobithiophene and 2,5"-dibromoterthiophene yielded the copolymers 4 and 5 with n=6(Mw=20200, yield 49%) and n=7(Mw=11100, yield 43%), respectively. UV- and photoluminescence spectra were determined for polymers 1-5. (author abst.) |
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