Compound
A compound represented by general formula (c1) (R 1 represents an alicyclic group of 5 or more carbon atoms which may have a substituent; X represents a divalent linking group; Y represents a linear, branched or cyclic alkylene group or an arylene group; Rf represents a hydrocarbon group containing a fluorine atom; and M + represents an organic cation or a metal cation).
1. A compound represented by general formula (c1) shown below:
R 1 represents an alicyclic group of 5 or more carbon atoms which may have a substituent; X represents a divalent linking group; Y represents a linear, branched or cyclic alkylene group or an arylene group; Rf represents a hydrocarbon group containing a fluorine atom; and M + represents an organic cation or a metal cation.