Patent ID: 7632608

Claim:
An ionic compound comprising: a structure shown in Chemical Formula 1: where X n+ represents an ion of a Group 1A element or a Group 2A element in the short form of the periodic table of the elements, or an onium ion, M represents a transition metal, or a Group 3B element, a Group 4B element or a Group 5B element in the short form of the periodic table of the elements, Rf represents a fluorinated alkyl group or a fluorinated aryl group having a carbon number of 1 to 10, and Y represents ZC(CR 2 ) d CZ, O 2 S(CR 2 ) e SO 2 or OC(CR 2 ) e SO 2 (Z represents ═O, a halogenated alkyl group or a halogen group, R represents a hydrogen group, an alkyl group, a halogenated alkyl group or a halogen group), and a, g and n each are an integer of 1 or 2, b, c and e each are an integer of 1 to 4, d is 0 or an integer of 1 to 4, and f and m each are an integer of 1 to 3.