Abstract
AbstractIodine complexes of some mono‐ and diamino derivatives of diphenylamine, N,N′‐diphenyl‐p‐phenylenediamine and 4,4′‐bis(phenylamino)‐diphenylamine and their N‐methyl derivatives were prepared and their conductivity, thermoelectric power, activation energy of conductivity, and the spin concentration in the solid state were investigated. For complexes prepared from the bases with a repeating unit in the chain, the conductivity increased in most cases with the length of the chain. Complexes of bases with methylated nitrogens were more stable and had a smaller conductivity than analogous complexes prepared from nonmethylated bases. Conductivity and spin concentration in most of the substances investigated were reproducible in different batches of the same compound, and were only slightly influenced by aging and the presence of oxygen. The activation energy of conductivity and thermoelectric power exhibit larger variations. The most conductive compound had a specific conductivity of 2 × 10−1 Ω−1 cm.−1.
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