Patent ID: 7318965

Claim:
A perylene derivative having a structure of the following formula (6): wherein R 1 to R 8 , R 31 and R 32 , and R 1′ to R 8′ , R 31′ and R 32′ , each are a hydrogen atom, a straight, branched or cyclic alkyl radical which may be substituted, a straight, branched or cyclic alkoxy radical which may be substituted, a straight, branched or cyclic alkylthio radical which may be substituted, a straight, branched or cyclic alkenyl radical which may be substituted, a straight, branched or cyclic alkenyloxy radical which may be substituted, a straight, branched or cyclic alkenylthio radical which may be substituted, a substituted or unsubstituted aralkyl radical, a substituted or unsubstituted aralkyloxy radical, a substituted or unsubstituted aralkylthio radical, a substituted or unsubstituted aryl radical, a substituted or unsubstituted aryloxy radical, a substituted or unsubstituted arylthio radical, a substituted or unsubstituted amino radical, a cyano radical, a hydroxyl radical, a —COOM 1 radical (wherein M 1 is a hydrogen atom, a straight, branched or cyclic alkyl radical which may be substituted, a straight, branched or cyclic alkenyl radical which may be substituted, a substituted or unsubstituted aralkyl radical, or a substituted or unsubstituted aryl radical), a —COM 2 radical (wherein M 2 is a hydrogen atom, a straight, branched or cyclic alkyl radical which may be substituted, a straight, branched or cyclic alkenyl radical which may be substituted, a substituted or unsubstituted aralkyl radical, a substituted or unsubstituted aryl radical, or an amino radical), or a —OCOM 3 radical (wherein M 3 is a straight, branched or cyclic alkyl radical which may be substituted, a straight, branched or cyclic alkenyl radical which may be substituted, a substituted or unsubstituted aralkyl radical, or a substituted or unsubstituted aryl radical), and at least two adjoining radicals selected from among R 1 to R 8 , R 31 and R 32 , and R 1′ to R 8′ , R 31′ and R 32′ , may bond or fuse together to form a substituted or unsubstituted carbocyclic aliphatic ring, aromatic ring or fused aromatic ring with the carbon atoms on which they substitute, wherein one of R 5 and R 6 is ortho-biphenylyl, and wherein one of R 5′ and R 6′ is ortho-biphenylyl.