Author/Authors :
Azcondo، نويسنده , , M.T. and Ballester، نويسنده , , L. and Coronado، نويسنده , , E. and Gil، نويسنده , , A.M. and Gَmez-Ariza، نويسنده , , C. and Gutiérrez، نويسنده , , A. and Perpiٌلn، نويسنده , , M.F. and Ramos، نويسنده , , J. and Sلnchez، نويسنده , , A.E.، نويسنده ,
Abstract :
This work is devoted to the study of compounds [M(N4)](TCNQ)n, where N4 = saturated or unsaturated tetraazamacrocycles, TCNQ= 7,7,8,8-tetracyanoquinodimethane, n= 2, 3. The metal is coordinated to two TCNQ groups only when there is coordinative unsaturation on it. When n= 2 all the TCNQ units are radical anions and no charge delocalization is observed. In the compounds with n= 3 only 23 of the TCNQ are negatively charged and a greater charge delocalization is possible. This delocalization only appears when none of the TCNQʹs are coordinated to the metal and it is reflected in the higher conductivity values obtained in the solid state.
Keywords :
Conductivity , Magnetic measurements , inorganic/organic structures , Organic conductors based on radical anion salts
