Abstract: Novel radical ion salts of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another are each hydrogen, methyl, ethyl, phenyl, methoxy, ethoxy, fluorine, chlorine or bromine, or R.sup.1 or R.sup.1 and R.sup.3 may furthermore be tert-butyl and/or R.sup.1 and R.sup.2 and/or R.sup.3 and R.sup.4 together may in each case form a radical of the formula ##STR2## where z is 0, 1, 2 or 3, and the fused aromatic rings are unsubstituted or monosubstituted or disubstituted by chlorine, bromine, methyl and/or methoxy, M.sup.m.sym. is an m-valent alkali metal, alkaline earth metal, transition metal, tin, lead, thallium, ammonium, phosphonium, arsonium or stibonium ion, k is from 1 to 5, l is from 0.1 to 4, m is from 1 to 3, n is from 0.1 to 4, x is from 0 to 2 and y is from 0 to 6, and k, l, n, x and y may furthermore be non-integral numbers and (l+x)=n.m, are electrically conductive in the crystalline state. A number of the salts are stable at 300.degree. C. and above.

Abstract: A novel charge transfer complex of an N,N'-biscyanoquinone bisimine of the formula ##STR1## and a fulvalene derivative of the formula ##STR2## where, in formula I, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another are --H, --CH.sub.3, --C.sub.2 H.sub.5, --OCH.sub.3, --OC.sub.2 H.sub.5, --Cl and/or --Br, and one of the radicals R.sup.1 and R.sup.2 and/or one of the radicals R.sup.3 and R.sup.4 may furthermore be phenyl or tert.-butyl, or R.sup.1 and R.sup.2 and/or R.sup.3 and R.sup.4 together form ##STR3## and the fused-on aromatic ring is unsubstituted or substituted, and, in formula (II), R.sup.5, R.sup.6, R.sup.7 and R.sup.8 independently of one another are each --H, --CH.sub.3, --C.sub.2 H.sub.5, phenyl, methylphenyl or methoxyphenyl, or R.sup.5 and R.sup.6 and/or R.sup.7 and R.sup.8 together form ##STR4## where n=3, 4 or 5, ##STR5## and X and Y indendently of one another are each S or Se.