The first evidence for the generation of radicals and formation of electrically conducting molecular materials by protic doping of tetrathiafulvalenes

Authors

  • Dr. Michel Giffard,

    Corresponding author
    1. Ingénierie Moléculaire et Matériaux Organiques EP CNRS 66, Université d'Angers 2, Bd Lavoisier, F-49045 Angers Cedex (France)
    • Ingénierie Moléculaire et Matériaux Organiques EP CNRS 66, Université d'Angers 2, Bd Lavoisier, F-49045 Angers Cedex (France)
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  • Prof. Pablo Alonso,

    1. Instituto de Ciencia de Materiales de Aragón Universidad de Zaragoza C.S.I.C. E-50009 Zaragoza (Spain)
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  • Prof. Javier Garín,

    1. Instituto de Ciencia de Materiales de Aragón Universidad de Zaragoza C.S.I.C. E-50009 Zaragoza (Spain)
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  • Prof. Alain Gorgues,

    1. Ingénierie Moléculaire et Matériaux Organiques EP CNRS 66, Université d'Angers 2, Bd Lavoisier, F-49045 Angers Cedex (France)
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  • Dr. Thien Phap Nguyen,

    1. Laboratoire de Physique Cristalline lnstitut des Matériaux. Université de Nantes 2. rue de la Houssiniére. F-44072 Nantes Cedex 03 (France)
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  • Dr. Pascal Richomme,

    1. Laboratoire de Pharmacognosie. Université d'Angers 16, Bd Daviers, F-49045 Angers Cedex (France)
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  • Prof. Albert Robert,

    1. Groupe de Recherches de Chimie Structurale, Université de Rennes F-35042 Rennes Cedex (France)
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  • Dr. Jean Roncali,

    1. Ingénierie Moléculaire et Matériaux Organiques EP CNRS 66, Université d'Angers 2, Bd Lavoisier, F-49045 Angers Cedex (France)
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  • Dr. Santiago Uriel

    1. Instituto de Ciencia de Materiales de Aragón Universidad de Zaragoza C.S.I.C. E-50009 Zaragoza (Spain)
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  • Financial support from DGICYT (Project PB91-0932) and the Spanish and French governments (Integrated Actions HF-277 and HF-144) is gratefully acknowledged.

Abstract

Protic acid doping of organic materials can be used to form conductive materials, see Figure. In an attempt to identify the mechanism of charge transfer in materials formed in this way, this first evidence is presented for the occurrence of radicals in the TTF + TTFH⊕ system (TTF us tetrathiafulvalene).

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