| 摘要 |
An optical recording material for use in an optical recording layer of an optical recording medium comprising the optical recording layer provided on a substrate, the optical recording material comprising a cyanine compound represented by general formula (I): wherein rings A and B each represent a substituted or unsubstituted benzene or naphthalene ring; X represents O, S, Se, CR3R4 or NY; one of R1 and R2 represents a specific group of formula (II) or (III), with the other representing a C1 to C30 organic group; R3 and R4 each represent a C1 to C30 organic group; Y, Y1, and Y2 each represent a hydrogen atom or a C1 to C30 organic group; Z represents a hydrogen atom, a halogen atom or a cyano group; Anm−represents an m-valent anion; m represents an integer of 1 or 2; and p represents a coefficient maintaining charge neutrality.
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