Reduction of p-terphenyl, p-quaterphenyl and p-sexiphenyl using alkali metal in liquid ammonia: Process and characterization of the reduced compounds

Oligomers of PPP ( p-terphenyl, p-quaterphenyl and p-sexiphenyl) were doped using Na or K to promote a reduction. The used method, with liquid ammonia resulted in a solid state doped material without insertion of solvent. The characterization with XPS and Raman spectroscopy showed the formation of a...

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Bibliographic Details
Published in:Synthetic metals 2005-12, Vol.155 (3), p.450-454
Main Authors: Péres, Laura O., Spiesser, Michel, Froyer, Gérard
Format: Article
Language:English
Subjects:
Applied sciences
Electrical, magnetic and optical properties
Exact sciences and technology
n-Doping
Oligomer
Organic polymers
Physicochemistry of polymers
PPP
Properties and characterization
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Summary:Oligomers of PPP ( p-terphenyl, p-quaterphenyl and p-sexiphenyl) were doped using Na or K to promote a reduction. The used method, with liquid ammonia resulted in a solid state doped material without insertion of solvent. The characterization with XPS and Raman spectroscopy showed the formation of at least one phase of the doped oligomer, which contains dianions (bipolarons).
ISSN:0379-6779
1879-3290
DOI:10.1016/j.synthmet.2005.02.020