Patent ID: 7241513

Claim:
A fluorene compound represented by the following general formula [I]: wherein R 1 and R 2 represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a substituted amino group, a cyano group, or a halogen atom, in which R 1 themselves or R 2 themselves which are bonded to different fluorene groups may be identical to or different from each other and R 1 and R 2 which are bonded to the same fluorene group may be identical to or different from each other; wherein R 3 and R 4 represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, in which R 3 themselves or R 4 themselves which are bonded to different fluorene groups may be identical to or different from each other and R 3 and R 4 which are bonded to the same fluorene group may be identical to or different from each other; wherein Ar 1 and Ar 2 represent a substituted or unsubstituted fused polycyclic aromatic group represented by one of the following general formulae [II], [III] and [V] through [IX] wherein R 5 , R 6 and R 8 to R 12 each represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a substituted amino group, a cyano group, or a halogen atom; in which Ar 1 and Ar 2 may be identical to or different from each other; and wherein n represents an integer of 1 to 10.