Patent ID: 7550491

Claim:
A salt of saturated, partially or fully unsaturated, heterocyclic cation having the bis(trifluoromethyl)imide anion, N(CF 3 ) 2 − , which have the general formula (1) where X=N, P, O or S n=an integer selected from 0, 1 or 2 wherein X is saturated in accordance with its valency increased by 1, A=a saturated, partially or fully unsaturated 3- to 8-membered hydrocarbon chain, in which all carbon atoms apart from one may be replaced by identical or different heteroatoms selected from N, P, O and S, where the carbon atoms of the hydrocarbon chain and the heteroatoms present therein are saturated by substituents R 2 in accordance with their valency, R 1 , R 2 =—H, with the proviso that there is no bond to the positively charged heteroatom, straight-chain or branched alkyl having 1-20 carbon atoms straight-chain or branched alkenyl having 2-20 carbon atoms and one or more double bonds, straight-chain or branched alkynyl having 2-20 carbon atoms and one or more triple bonds, saturated, partially or fully unsaturated cycloalkyl having 3-7 carbon atoms, halogen, with the proviso that, for X=N, O, S, there is no halogen-heteroatom bond, —NO 2 , with the proviso that there is no bond to a positively charged heteroatom, —CN, with the proviso that there is no bond to a positively charged heteroatom, where the R 2 and/or R 1 in different and/or identical position of the heterocyclic ring are in each case identical or different, where the R 2 and/or R 1 may be connected to one another in pairs by a single or double bond, where one or more R 2 and/or R 1 may be partially or fully substituted by halogens, or partially by —CN or —NO 2 , with the proviso that not all R 2 and R 1 are fully halogenated, and where one or two carbon atoms of the R 1 and/or R 2 may be replaced by heteroatoms and/or atomic groups selected from the group —O—, —C(O)—, C(O)O—, —S—, —S(O)—, —SO 2 —, —SO 2 O—, —N═, —P═, —NH—, —PH—, —NR′— and —PR′— where R′= non-, partially or perfluorinated C 1 - to C 6 -alkyl or —C 6 F 5 , where the α-position of the R 1 is not replaced for X=O, S.