Patent ID: 8318323

Claim:
A polycyclic compound represented by the following general formulae (7) or (8): where: X 3 , X 4 , X 5 , and X 6 each independently represent oxygen (O), sulfur (S), or N—R 1 , R 1 represents a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 carbon atoms forming the ring, a substituted or unsubstituted aralkyl group having 7 to 24 carbon atoms, a substituted or unsubstituted organosilyl group having 3 to 20 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 24 carbon atoms forming the aromatic ring, or a substituted or unsubstituted aromatic heterocyclic group having 3 to 24 atoms forming the aromatic ring, provided that when both X 3 and X 4 or both X 5 and X 6 represent N—R 1 , at least one R 1 represents a substituted or unsubstituted monovalent fused aromatic heterocyclic group having 8 to 24 atoms forming the aromatic ring; o, p, and q each independently represent 0 or 1, provided that o+p is 1 or more; L 1 , L 2 , and L 3 each independently represent a structure which is selected from the following formulae (21) to (39) and may have a substituent: and Y 1 , Y 2 , and Y 3 each independently represent a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 carbon atoms forming the ring, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 24 carbon atoms, a substituted or unsubstituted organosilyl group having 3 to 20 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 24 carbon atoms forming the aromatic ring, or a substituted or unsubstituted aromatic heterocyclic group having 3 to 24 atoms forming the aromatic ring which is bonded with a carbon atom, a number of Y 1 's is 0, 1, 2, or 3, a number of Y 2 's is 0, 1, 2, 3, or 4, and a number of Y 3 's is 0, 1, or 2.