Patent ID: 7276600

Claim:
An optical recording material, with structure represented by formula (I), comprising of a phthalocyanine derivative, to which at least a substituted or unsubstituted metallocene is attached via the linkage containing an anhydride moiety and a bridge unit G: wherein R 1 , R 2 , R 3 , and R 4 are each independently an alkyl group containing 1 to 12 carbon atoms and with substituents selected from the groups consisting of 0 to 6 halogen atoms, a hydroxyl, an alkoxy group containing 1 to 6 carbon atoms, an alkylamino group containing 1 to 6 carbon atoms, a dialkylamino group containing 1 to 6 carbon atoms, and an alkythio group containing 1 to 6 carbon atoms; an alkenyl group containing 2 to 12 carbon atoms; or an alkynyl group containing 2 to 12 carbon atoms; M is two hydrogen atoms, a divalent metal, a monosubstituted trivalent metal, a disubstituted tetravalent metal, or an oxometal group; G is the bridge unit between said phthalocyanine derivative and said anhydride moiety connecting metallocene group, and is selected from the groups consisting of —O—, —S—, —S—(CH 2 ) 1-6 —, —(NH)—, —N(alkyl)—, —(CH 2 )—, —CH(alkyl)—, —C(alkyl) 2 —, —CH 2 —O)—, —C(═O)—, —C—O—C(═O)—, —O—C(═O)—and —C(═O)—O—; R 5 and R 6 are each independently a hydrogen, halogen selected from the group consisting of, an alkyl group containing 1 to 6 carbon atoms, an alkoxy group containing 1 to 6 carbon atoms, an alkylamino group containing 1 to 6 carbon atoms, an alkylthio group containing 1 to 6 carbon atoms, an alkenyl group containing 1 to 6 carbon atoms, an alkynyl group containing 1 to 6 carbon atoms, or an aromatic substituent; and n is a rational number of 1 to 4.