A salt represented by formula (I):
wherein Q
1
and Q
2
independently each represent a fluorine atom or a C1-C6 perfluoroalkyl group,
L
1
represents a C1-C17 divalent saturated hydrocarbon group in which a methylene group may be replaced by an oxygen atom or a carbonyl group,
L
2
and L
3
respectively represent a single bond or a C1-C6 divalent saturated alkyl group in which a methylene group may be replaced by an oxygen atom or a carbonyl group,
ring W
1
and ring W
2
respectively represent a C3-C36 hydrocarbon ring,
R
1
and R
2
respectively represent a hydrogen atom or C1-C6 alkyl group,
R
3
represents C1-C6 alkyl group,
t represents an integer of 0 to 2 and
Z
+
represents an organic counter ion
一种由
化学式(I)表示的盐:其中Q1和Q2分别代表
氟原子或C1-C6
全氟烷基基团,L1代表C1-C17的二价饱和碳氢基团,其中一个亚甲基基团可被氧原子或羰基取代,
L2和L3分别代表单键或C1-C6的二价饱和烷基基团,其中一个亚甲基基团可被氧原子或羰基取代,环W1和环W2分别代表C3-C36的碳氢环,R1和R2分别代表氢原子或C1-C6烷基基团,R3代表C1-C6烷基基团,t代表0到2之间的整数,Z+代表有机对离子。