Binary Alloys of 2,5-Disubstituted DCNQI Radical Anion Salts of Copper and Their Electrical Conductivity


  • This work was supported by the Volkswagen Stiftung, the Fonds der Chemischen Industrie, and BASF AG, Ludwigshafen. –DCNQI = N,N″-dicyanoquinodiimine.

  • Dedicated to Professor Gottfried Märkl on the occasion of his 60th birthday


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Electrocrystallization or even reaction with a copper wire leads to conversion of two 2, 5-disubstituted DCNQIs (1 and 2) into the alloy 3. Such an alloy displays metallic conductivity. Moreover, the phase transformation that normally causes the pure components to become semiconductors upon cooling can be suppressed through alloy formation.