申请人:Yano Toru
公开号:US20080033179A1
公开(公告)日:2008-02-07
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, CR
3
R
4
or NY; one of R
1
and R
2
represents a specific group of formula (II) or (III), with the other representing a C1 to C30 organic group; R
3
and R
4
each represent a C1 to C30 organic group; Y, Y
1
, and Y
2
each represent a hydrogen atom or a C1 to C30 organic group; Z represents a hydrogen atom, a halogen atom or a cyano group; An
m−
represents an m-valent anion; m represents an integer of 1 or 2; and p represents a coefficient maintaining charge neutrality.
一种用于光学记录介质的光学记录层的光学记录材料,包括设置在基板上的光学记录层,所述光学记录材料包括通式(I)所表示的青霉素化合物:其中环A和环B分别表示取代或未取代的苯或萘环;X表示O、S、Se、CR3R4或NY;R1和R2中的一个表示式(II)或(III)的特定基团,另一个表示C1至C30的有机基团;R3和R4各自表示C1至C30的有机基团;Y、Y1和Y2各表示氢原子或C1至C30的有机基团;Z表示氢原子、卤素原子或氰基团;Anm−表示m价阴离子;m表示1或2的整数;p表示维持电中性的系数。