A new BEDT-TTF salt and polypyrrole films containing the chiral polyoxometalate [H 4Co 2Mo 10O 38] 6
The chiral polyoxometalate [H 4Co 2Mo 10O 38] 6− has been used in the preparation of hybrid materials in the form of crystals or polymeric films. A new radical salt of the donor bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF or ET) containing the two enantiomers of this polyoxometalate has been obt...
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Published in | Synthetic metals Vol. 154; no. 1; pp. 241 - 244 |
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Main Authors | , , , , |
Format | Journal Article Conference Proceeding |
Language | English |
Published |
Lausanne
Elsevier B.V
01.09.2005
Amsterdam Elsevier Science New York, NY |
Subjects | |
Online Access | Get full text |
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Summary: | The chiral polyoxometalate [H
4Co
2Mo
10O
38]
6− has been used in the preparation of hybrid materials in the form of crystals or polymeric films. A new radical salt of the donor bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF or ET) containing the two enantiomers of this polyoxometalate has been obtained by electrocrystallization. This radical salt shows semiconducting behavior with room temperature conductivity of 9
S.cm
−1 and activation energy of 40
meV. Polypyrrole films doped with a racemic mixture of polyoxometalates and also the enantiomerically pure (+)
589-[H
4Co
2Mo
10O
38]
6− have been prepared electrochemically. Circular dichroism experiments suggest that the chiral polyoxometalates do not induce macroasymmetry into the polypyrrole chains during polymerization. Conductivities at room temperature of these polymer films range between 36 and 49
S.cm
−1. |
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ISSN: | 0379-6779 1879-3290 |
DOI: | 10.1016/j.synthmet.2005.07.063 |