Abstract
Conjugated polymers that can undergo unusual nonoxidative doping were designed. A series of polymers based on donor-acceptor-donor (DAD) moieties 2,1,3-benzoselenadiazole, 2,1,3-benzothiadiazole, 2,1,3-benzoxadiazolebenzo[2,1, 5]oxodiazole, and 2-hexylbenzotriazole as acceptor fragments and 3,4-ethylenedioxyselenophene (EDOS) and 3,4-ethylenedioxythiophene (EDOT) as donor fragments was prepared. When the studied polymers were reacted with Lewis acids and bases, notable optical switching and conductivity changes were observed, evidencing the exceptional case of efficient nonoxidative doping/dedoping. Remarkably, in previously reported works, coordination of Lewis acids causes band gap shift but not doping of the conductive polymer, while in the present study, coordination of Lewis acid to highly donating EDOT and EDOS moieties led to polymer doping. The polymers show remarkable stability after numerous switching cycles from neutral to doped states and vice versa and can be switched both electrochemically and chemically. The reactivity of the prepared polymers with Lewis acids and bases of different strengths was studied. Calculation studies of the Lewis acid coordination mode, its effect on polymer energies and band gap, support the unusual doping. The reported doping approach opens up the possibility to control the conjugation, color change, and switching of states of conjugated polymers without oxidation.
| Original language | English |
|---|---|
| Pages (from-to) | 5138-5149 |
| Number of pages | 12 |
| Journal | Journal of the American Chemical Society |
| Volume | 136 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - Apr 2 2014 |
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ASJC Scopus subject areas
- Chemistry(all)
- Catalysis
- Biochemistry
- Colloid and Surface Chemistry
Cite this
Unusual doping of donor-acceptor-type conjugated polymers using lewis acids. / Poverenov, Elena; Zamoshchik, Natalia; Patra, Asit; Ridelman, Yonatan; Bendikov, Michael.
In: Journal of the American Chemical Society, Vol. 136, No. 13, 02.04.2014, p. 5138-5149.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Unusual doping of donor-acceptor-type conjugated polymers using lewis acids
AU - Poverenov, Elena
AU - Zamoshchik, Natalia
AU - Patra, Asit
AU - Ridelman, Yonatan
AU - Bendikov, Michael
PY - 2014/4/2
Y1 - 2014/4/2
N2 - Conjugated polymers that can undergo unusual nonoxidative doping were designed. A series of polymers based on donor-acceptor-donor (DAD) moieties 2,1,3-benzoselenadiazole, 2,1,3-benzothiadiazole, 2,1,3-benzoxadiazolebenzo[2,1, 5]oxodiazole, and 2-hexylbenzotriazole as acceptor fragments and 3,4-ethylenedioxyselenophene (EDOS) and 3,4-ethylenedioxythiophene (EDOT) as donor fragments was prepared. When the studied polymers were reacted with Lewis acids and bases, notable optical switching and conductivity changes were observed, evidencing the exceptional case of efficient nonoxidative doping/dedoping. Remarkably, in previously reported works, coordination of Lewis acids causes band gap shift but not doping of the conductive polymer, while in the present study, coordination of Lewis acid to highly donating EDOT and EDOS moieties led to polymer doping. The polymers show remarkable stability after numerous switching cycles from neutral to doped states and vice versa and can be switched both electrochemically and chemically. The reactivity of the prepared polymers with Lewis acids and bases of different strengths was studied. Calculation studies of the Lewis acid coordination mode, its effect on polymer energies and band gap, support the unusual doping. The reported doping approach opens up the possibility to control the conjugation, color change, and switching of states of conjugated polymers without oxidation.
AB - Conjugated polymers that can undergo unusual nonoxidative doping were designed. A series of polymers based on donor-acceptor-donor (DAD) moieties 2,1,3-benzoselenadiazole, 2,1,3-benzothiadiazole, 2,1,3-benzoxadiazolebenzo[2,1, 5]oxodiazole, and 2-hexylbenzotriazole as acceptor fragments and 3,4-ethylenedioxyselenophene (EDOS) and 3,4-ethylenedioxythiophene (EDOT) as donor fragments was prepared. When the studied polymers were reacted with Lewis acids and bases, notable optical switching and conductivity changes were observed, evidencing the exceptional case of efficient nonoxidative doping/dedoping. Remarkably, in previously reported works, coordination of Lewis acids causes band gap shift but not doping of the conductive polymer, while in the present study, coordination of Lewis acid to highly donating EDOT and EDOS moieties led to polymer doping. The polymers show remarkable stability after numerous switching cycles from neutral to doped states and vice versa and can be switched both electrochemically and chemically. The reactivity of the prepared polymers with Lewis acids and bases of different strengths was studied. Calculation studies of the Lewis acid coordination mode, its effect on polymer energies and band gap, support the unusual doping. The reported doping approach opens up the possibility to control the conjugation, color change, and switching of states of conjugated polymers without oxidation.
UR - http://www.scopus.com/inward/record.url?scp=84897567756&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84897567756&partnerID=8YFLogxK
U2 - 10.1021/ja501024n
DO - 10.1021/ja501024n
M3 - Article
AN - SCOPUS:84897567756
VL - 136
SP - 5138
EP - 5149
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 13
ER -