Patent ID: 8647780

Claim:
A medium used to perform chemical or electrochemical reactions involving soluble species present in said medium, comprising: at least one ionic compound having a cation of the onium type with at least one heteroatom selected from N, O, S and P carrying a positive charge; and the anion including, in whole or in part, at least one imidide ion of the type (FX 1 O)N − (OX 2 F) wherein X 1 and X 2 are the same or different and comprise SO or PF, wherein the onium type cation comprises a compound of formula: a compound of formula a compound of formula a compound of formula wherein W is O, S or N, and wherein N is optionally substituted with R 1 when the valence allows it; R 1 , R 3 , R 4 are the same or different and represent H; an alkyl, alkenyl, oxaalkyl, oxaalkenyl, azaalkyl, azaalkenyl, thiaalkyl, thiaalkenyl, dialkylazo, each of these can be either linear, branched or cyclic and comprising from 1 to 18 carbon atoms; cyclic or heterocyclic aliphatic radicals of from 4 to 26 carbon atoms optionally comprising at least one lateral chain comprising one or more heteroatoms; aryl, arylalkyl, alkylaryl and alkenylaryl of from 5 to 26 carbon atoms optionally comprising one or more heteroatoms in the aromatic nucleus; groups comprising several aromatic or heterocyclic nuclei, condensed or not, optionally comprising one or more atoms of nitrogen, oxygen, sulfur or phosphorous; and wherein two groups R 1 , R 3 or R 4 can form a cycle or a heterocycle of from 4 to 9 carbon atoms, and wherein one or more R 1 , R 3 or R 4 groups on the same cation can be part of a polymeric chain; R 2 and R 5 to R 9 are the same or different and represent R 1 , R 1 O—, (R 1 ) 2 N—, R 1 S—, R 1 being as defined above.