Patent ID: 7919629

Claim:
An ionic compound comprising at least one anionic part associated with at least one cationic part M in a number which grants electronic neutrality to the compound, wherein M is H + , or a cation of valence m wherein 1≦m≦4, and wherein the anionic part has formula wherein R 1 represents: a ClSO 2 — group; a group R F selected from the group consisting of HCF 2 —, HCF 2 CF 2 —, and linear or branched perfluoroalkyl groups having 1 to 12 carbon atoms wherein the chain may optionally be interrupted by at least one divalent oxygen atom linked to two carbon atoms; or a group of formula wherein Z is Cl and R 2 is a linear or branched perfluoroalkylene group having 2 to 12 carbon atoms wherein the chain may optionally be interrupted by at least one divalent oxygen atom linked to two carbon atoms.