| 摘要 |
The present invention provides a heterocyclic compound of the following general formula (I): wherein X and Y are different from each other and represent a halogen atom selected from among a chlorine atom, bromine atom and iodine atom, or CF3SO3-, CH3SO3-, C6H5SO3- or CH3C6H4SO3-; R1 represents an optionally substituted monovalent aliphatic hydrocarbon group having two or more carbon atoms; one of A1 and A2 represents -S-, -O-, -Se- or Te-, while the other represents -N-, -P- or -Si(R2)-, wherein R2 represents a hydrogen atom, an optionally substituted monovalent hydrocarbon group, a halogen atom, an amino group or a carbonyl group; and one of two linkages each represented by a solid line and a dashed line is a single bond, while the other is a double bond. |
