Compositions of matter useful as ionic liquids of the formula Z
+
A
−
, wherein Z
+
is a cation selected from the group consisting of pyridinium, pyridazinium, pyrimidinium, pyrazinium, imidazolium, pyrazolium, thiazolium, oxazolium, triazolium, and phosphonium, ammonium cations with specified substituents, and A
−
is selected from the group consisting of the following three anions wherein R
11
, R
12
and R
13
are as specified.
R
11
—CHF—CF
2
—SO
3
−
Formula I
R
12
—CF
2
—CF
2
—SO
3
−
Formula II
(R
13
—CHF—CF
2
—SO
2
)
2
N
−
Formula III
具有
离子液体Z+A−的物质组成,其中Z+是从
吡啶基、
吡啶并
咪唑基、
嘧啶基、
吡嗪基、
咪唑啉基、
吡嗪啉基、
噻唑啉基、
噁唑啉基、三唑啉基和
磷铵中选择的阳离子,以及具有指定取代基的
铵阳离子,A−是从以下三种阴离子中选择的一种,其中R11、R12和R13如指定。R11—CHF—
CF2—SO3−(式I)R12—
CF2—
CF2—SO3−(式II)R13—CHF—
CF2—SO2)2N−(式III)