Patent ID: 8568903

Claim:
A phenanthrene compound, represented by a formula (1) below where Ar l to Ar 4 each represent an aromatic hydrocarbon ring group having 6 to 18 carbon atoms for forming the ring, the aromatic hydrocarbon ring group comprising none of anthracence skeleton, pyrene skeleton, aceanthrylene skeleton and naphthacene skeleton, wherein Ar 1 to Ar 4 are bonded in any positions of a phenanthrene skeleton; R 1 and R 2 each represent an alkyl group having 1 to 30 carbon atoms, cycloalkyl group having 3 to 30 carbon atoms, alkoxy group having 1 to 20 carbon atoms, cyano group, silyl group having 3 to 30 carbon atoms, halogen atom or aryl group having 6 to 30 carbon atoms, wherein R 1 and R 2 are bonded in any positions of the phenanthrene skeleton; L is bonded in the 2nd or 9th position of the phenanthrene skeleton and represents a single bond, a substituted or unsubstituted benzene skeleton, naphthalene skeleton, fluorene skeleton, fluoranthene skeleton, triphenylene skeleton, chrysene skeleton, phenyl-naphthalene skeleton, binaphthalene skeleton, benzophenanthrene skeleton, dibenzophenanthrene skeleton, benzotriphenylene skeleton, picene skeleton or benzo[b]fluoranthene skeleton, wherein, when L is a single bond, Ar 1 and Ar 2 represent an aromatic hydrocarbon ring group having 6 to 18 carbon atoms for forming the ring comprising none of phenanthrene skeleton, anthracene skeleton, pyrene skeleton, aceanthrylene skeleton, and naphthacene skeleton, Ar 1 and Ar 3 not simultaneously representing phenanthrene skeleton and Ar 2 and Ar 4 not simultaneously representing phenanthrene skeleton; a represents the number of substituents R 1 directly bonded to a phenanthrene main chain; b represents the number of the substituents R 2 directly bonded to a phenanthrene main chain; a and b each represent an integer of 0 to 8; m, n, l and p each represent 0 or 1 while satisfying m+n+l+p≧1 (m,n≧l,p); and a structure represented by a formula (1-X) below is excluded