| 摘要 |
<p>A hemicyanine dye having formula (1) and an optical recording medium using the hemicyanine dye as an optical recording medium are provided: <CHEM> where Z is a benzene ring, naphthalene ring or anthracene ring; X1 is S, O, Se, NR or C(CH3)2, where R is hydrogen or an alkyl group of 1 to 5 carbon atoms; R1 is hydrogen, a halogen atom, an alkyl group of 1 to 3 carbon atoms, a nitro group, an alkoxy group of 1 to 3 carbon atoms or an amine group; each of R2 and R4 is an alkyl group of 1 to 5 carbon atoms; R3 is H, OH, OCOCH3 or OSO2C6H4Cl; Y is Cl, Br, I, ClO4, BF4, BrO4, PF6, CH3SO3, CF3SO3, 4-CH3C6H4SO3, C6H5SO3, 6-SO3C10H6SO3 or HSO4; and n is an integer of 0-2. The hemicyanine dye having formula (1) above is easy to synthesize with high yield. Thus, use of the hemicyanine dye as an optical recording material in manufacturing optical recording media can reduce the manufacturing cost.</p> |
