| abstract |
PROBLEM TO BE SOLVED: To provide a liquid and low viscosity iodide useful for a dye-sensitized solar cell or the like. 1-butyl-2,3,4,5,6-pentafluoropyridinium iodide, 1-butyl-4-cyano-2,3,5,6-pentafluoropyridinium iodide, The following general formula such as butyl-4-methyl-2,3,5,6-pentafluoropyridinium iodide (In the formula, R 1 is a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, and R 2 , R 3 , R 4 , R 5 , and R 6 are a fluorine atom, a cyano group, or a total carbon number of 1; a to 4 substituted or unsubstituted alkyl group, and R 2, R 3, R 4 , R 5, 4 or more of the R 6 is a fluorine atom.) Onium salt indicated by R 1 is an unsubstituted or fluorine-substituted alkyl group having 1 to 4 carbon atoms, R 4 is a fluorine atom, a cyano group, or an unsubstituted or fluorine-substituted alkyl group having 1 to 4 carbon atoms, R 2 R 3 , R 5 and R 6 are particularly preferably a fluorine atom. [Selection figure] None |