Patent ID: 8277920

Claim:
An optical recording material comprising at least one chalcone compound represented by general formulas (V) wherein, n is 0 or 1; ring C represents a naphthalene ring ; t represents an integer from 0 to 6; each R 16 is the same or different and represents an alkyl group having 1 to 8 carbon atoms which may optionally be interrupted by —O—, —CO—, —OCO—, or —COO—, an aryl group having 6 to 30 carbon atoms, an arylalkyl group having 7 to 30 carbon atoms, a metallocenyl group having 10 to 30 carbon atoms, a halogen atom, a hydroxyl group, a nitro group, a cyano group, or a heterocyclic group having 2 to 30 carbon atoms; R d , R e , and R f each independently represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an aryl group having 6 to 30 carbon atoms, an arylalkyl group having 7 to 30 carbon atoms, a metallocenyl group having 10 to 30 carbon atoms, a halogen atom, a hydroxyl group, a nitro group, a cyano group, or a heterocyclic group having 2 to 30 carbon atoms; s represents an integer from 0 to 4 ; each R 15 is the same or different and represents an alkyl group having 1 to 8 carbon atoms which may optionally be interrupted by —O—, —CO—, —OCO—, or —COO—, and aryl group having 6 to 30 carbon atoms, an arylalkyl group having 7 to 30 carbons atoms, a metallocenyl group having 10 to 30 carbon atoms, a halogen atom, a hydroxyl group, a nitro group, a cyano group or a heterocyclic group having 2 to 30 carbons atoms; and each of said alkyl group having 1 to 8 carbon atoms, said aryl group having 6 to 30 carbon atoms, said arylalkyl group having 7 to 30 carbon atoms, said metallocenyl group having 10 to 30 carbon atoms, and said heterocyclic group having 2 to 30 carbon atoms of R 15 , R 16 , R d , R e , and R f may optionally have a substituent.