Patent ID: 8748015

Claim:
An indenofluorenedione derivative represented by formula (I): wherein Ar 1 is a benzene ring or a naphthalene ring, each of which may be substituted by a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a halogen atom, a substituted or unsubstituted fluoroalkyl group, a substituted or unsubstituted alkoxyl group, a substituted or unsubstituted fluoroalkoxyl group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted aralkyloxy group, a substituted or unsubstituted amino group, or cyano group, ar 1 and ar 2 may be the same or different and each independently represent a structure represented by formula (i) or (ii): wherein X 1 and X 2 may be the same or different and selected from the following divalent groups represented by formulae (a) to (g): wherein R 21 to R 24 may be the same or different and each independently represent a hydrogen atom, a substituted or unsubstituted fluoroalkyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, and R 22 and R 23 may bond to each other to form a ring, R 1 to R 4 may be the same or different and each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a halogen atom, a substituted or unsubstituted fluoroalkyl group, a substituted or unsubstituted alkoxyl group, a substituted or unsubstituted fluoroalkoxyl group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted aralkyloxy group, a substituted or unsubstituted amino group, or cyano group, and R 1 and R 2 , and R 3 and R 4 may bond to each other to form a saturated or unsaturated divalent group completing a ring, and Y 1 to Y 4 may be the same or different and each represent —N═, —CH═, or —C(R 5 )═, wherein R 5 is defined in the same manner as in R 1 to R 4 , and adjacent groups of R 1 to R 5 may bond to each other to form a saturated or unsaturated divalent group completing a ring, wherein the indenofluorenedione derivative represented by formula (I) does not include a compound represented by formula (iii): wherein X 1 and X 2 are defined in the same manner as in formula (I); R 1 to R 4 are defined in the same manner as in R 1 to R 4 of formula (I), and Y 5 to Y 10 are defined in the same manner as in Y 1 to Y 4 of formula (I).