Back to results
US 7,153,974 B2Granted
Ionic liquids II
AssigneeMerck & Co., Inc.
InventorsMichael Schmidt, Udo Heider, Winfried Geissler, Nikolai Ignatyev, Volker Hilarius
Life of this patent
Estimating the term…
Abstract
An ionic liquid of the formula K+A− wherein K+ and A− are as defined herein, are suitable for use in electrochemical cells and capacitors. These ionic liquids can also be used in catalysis, as inert solvents, and as hydraulic liquids.
Claims26
A compound of the formula
- K+A− (I)
- wherein:
- K+ is a cation selected from
- where
- R1 to R6 are identical or different and are each individually
- H,
- halogen,
- an alkyl radical (C1 to C8), which is unsubstituted or partially or fully substituted by F, Cl, N(CnF(2n+1−x)Hx)2, O(CnF(2n+1−x)Hx), or (CnF(2n+1−x)Hx), where 1<n<6 and 0<x≦13,
- a phenyl radical which is unsubstituted or partially or fully substituted by F, Cl, N(CnF(2n+1+x)Hx)2, O(CnF(2n+1−1)Hx), SO2(CnF(2n+1−x)Hx) or CnF(2n+1−x)Hx where 1<n<6 and 0<x≦13, or
- one or more pairs of adjacent R1 to R6 can also be an alkylene or alkenylene radical having up to 8 C atoms and which is unsubstituted or partially or fully unsubstituted by halogen, N(CnF(2n+1x)Hx)2, O(CnF(2n+1−x)Hx), SO2(CnF(2n+1−x)Hx or CnF(2n+1−x)Hx where 1<n<6 and 0≦x≦13;
- and
- A− is an anion of the following formula
- [PFx(CyF2y+1−zHz)6−x]−
- where
- 1≦x<6
- 2≦y≦8 and
- 0≦z≦2y+1.
14 more elements
A compound of the formula
- K+A− (I)
- wherein:
- K+ is a cation selected from
- where
- R1 to R6 are identical or different and are each individually
- H,
- halogen,
- an alkyl radical (C1 to C8), which is unsubstituted or partially or fully substituted by F, Cl, N(CnF(2n+1−x)Hx)2, O(CnF(2n+1−x)Hx), or (CnF(2n+1−x)Hx), where 1<n<6 and 0<x≦13,
- a phenyl radical which is unsubstituted or partially or fully substituted by F, Cl, N(CnF(2n+1+x)Hx)2, O(CnF(2n+1−1)Hx), SO2(CnF(2n+1−x)Hx) or CnF(2n+1−x)Hx where 1<n<6 and 0<x≦13, or
- one or more pairs of adjacent R1 to R6 can also be an alkylene or alkenylene radical having up to 8 C atoms and which is unsubstituted or partially or fully unsubstituted by halogen, N(CnF(2n+1x)Hx)2, O(CnF(2n+1−x)Hx), SO2(CnF(2n+1−x)Hx where 1<n<6 and 0≦x≦13;
- and
- A− is an anion of the following formula
- [PFx(CyF2y+1−zHz)6−x]−
- where
- 1≦x<6
- 2≦y≦8 and
- 1≦z≦2y1.
14 more elements
Dependencies are inferred from the claim text.