| abstract |
The present invention relates to a compound represented by general formula (I). (In formula (I), X represents a methyl group or a halogen atom, and R 1 to R 14 are each independently a hydrogen atom, a halogen atom, a cyano group, an alkyl group having 1 to 8 carbon atoms which may have a substituent, Alternatively, an aromatic hydrocarbon group having 6 to 12 carbon atoms which may have a substituent is represented, B m- represents a polyoxometallate anion, m represents an integer of 1 to 20, and n represents an integer of 1 to 20. However, n is determined so that the charge of the entire equation (I) becomes zero) |