Y. Sakaino et al., REACTION-PRODUCT OF TCNQ WITH P-PHENYLENEDIMALONONITRILE AND THE CHROMIC PHENOMENA, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 248, 1994, pp. 173-183
Complex formation of 7,7,8,8-Tetracyanoquinodimethane (TCNQ) with p-ph
enylenedimalononitrile (molr ratio 1:2) was assumed by DSC and IR spec
tral measurements. The complex shows very sensitive chromic phenomena
when it contacts with moist air or with metal carbonates due to format
ion of TCNQ anion radical or formation of the anion radical salts.