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Molecules
2022 Dec 08;2724:. doi: 10.3390/molecules27248699.
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The Influence of Alkali Metals on the Doping of Poly(p-phenylene) Oligomers.
Péres LO
,
da Rochas Rodrigues R
,
Louarn G
.
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In this study, we report on crystallographic studies that were performed on Na- and K-doped terphenyl and quaterphenyl. The data obtained via X-ray scattering and transmission electron diffraction show that, for both K-doped terphenyl and quaterphenyl samples, there is an increase in the c parameter. However, in regard to Na-doped terphenyl, there is a c parameter decrease along with an a parameter increase, which may be accounted for by the polymerization of this oligomer. Moreover, in order to complete the crystallographic study, a Raman analysis was conducted to describe the localization of the radical anions and the local distortions induced by the electric charges during the doping process.
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