Patent ID: 7166724

Claim:
A compound of the general formula K + A − (I) wherein: K + is a cation selected from: wherein R 1 to R 6 are identical or different and are each individually H, a halogen, an alkyl radical (C 1 to C 8 ), which is unsubstituted, or which is partially or fully substituted by F, Cl, N(C n F (2n+1−x) H x ) 2 , O(C n F (2n+1−x) H x ), SO 2 (C n F (2n+1−x) H x ) or C n F (2n+1−x) H x , wherein 1<n<6 and 0<x≦13 a phenyl radical which is unsubstituted or which is partially or fully substituted by F, Cl, N(C n F (2n+1−x) H x ) 2 , O(C n F (2n+1−x) H x ), SO 2 (C n F (2n+1−x) H x ) or C n F (2n+1−x) H x wherein 1<n<6 and 0<x≦13, or one or more pairs of adjacent R 1 to R 6 can also be an alkylene or alkenylene radical and having up to 8 C atoms, wherein the radical is unsubstituted or partially or fully substituted by halogen, N(C n F (2n+1−x) H x ) 2 , O(C n F (2n+1−x) H x ), SO 2 (C n F (2n+1−x) H x ) or C n F (2n+1−x) H x wherein 1<n<6 and 0<x≦13 wherein A − is an anion selected from [B(OR 7 ) n (OR 8 ) m (OR 9 ) o (OR 10 ) p ] − wherein 0≦n, m, o, p≦4, and m+n+o+p=4, and R 7 to R 10 are different or identical and are each, individually: an aromatic ring selected from a phenyl, naphthyl, anthracenyl and phenanthrenyl ring, which is unsubstituted, or which is monosubstituted or polysubstituted by C n F (2n+1−x) H x , wherein 1<n<6 and 0<x≦13, or halogen, or an aromatic heterocyclic ring selected from a pyridyl, pyrazyl and pyrimidyl ring, which is unsubstituted, or which is mono-substituted or polysubstituted by C n F (2n+1−x) H x , wherein 1<n<6 and 0<x≦13, or halogen, and wherein one or more pairs of R 7 to R 10 can also form an aromatic ring selected from a anthracenylene and phenanthrenylene ring, which is unsubstituted or an aromatic ring selected from a phenylene, naphthylene, anthracenylene and phenanthrenylene ring which is monosubstituted or polysubstituted by C n F (2n+1−x) H x , wherein 1<n<6 and 0<x≦13, or halogen, an aromatic heterocyclic ring selected from a pyridylene, pyrazylene and pyrimidylene ring, which is unsubstituted, or which is mono-substituted or polysubstituted by C n F (2n+1−x) H x , wherein 1<n<6 and 0<x≦13, or halogen, or OR 7 to OR 10 , individually or together, are aliphatic having 1 to 6 C atoms and which is a carboxyl, dicarboxyl, oxysulfonyl or oxycarbonyl radical, which is unsubstituted, or which is partially or fully substituted by F, Cl, N(C n F (2n+1−x) H x ) 2 , O(C n F (2n+1−x) H x ), SO 2 (C n F (2n+1−x) H x ) or C n F (2n+1−x) H x , wherein 1<n<6 and 0<x≦13.