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Issue 10, 2013
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Synthesis of poly(dithienogermole-2,6-diyl)s

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Poly[4,4-di(2-ethylhexyl)dithienogermole-2,6-diyl] was prepared by palladium-catalyzed Stille homocoupling of 6-bromo-2-(trimethylstannyl)-4,4-di(2-ethylhexyl)dithienogermole, while a similar cross-coupling of 2,6-dibromo-4,4-dioctyldithienogermole with 2,6-bis(trimethylstannyl)-4,4-dioctyldithienogermole provided poly(4,4-dioctyldithienogermole-2,6-diyl). These polymers showed broad absorption bands in the UV-vis spectra, which were red-shifted from that reported previously for the silicon analogue poly(dithienosilole-2,6-diyl). Potential applications of the polymers as active materials for bulk heterojunction-type polymer solar cells and thin film transistors were explored.

Graphical abstract: Synthesis of poly(dithienogermole-2,6-diyl)s

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Article information

20 Feb 2013
13 Mar 2013
First published
26 Mar 2013

Polym. Chem., 2013,4, 3116-3122
Article type

Synthesis of poly(dithienogermole-2,6-diyl)s

J. Ohshita, M. Miyazaki, D. Tanaka, Y. Morihara, Y. Fujita and Y. Kunugi, Polym. Chem., 2013, 4, 3116
DOI: 10.1039/C3PY00253E

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