| 摘要 |
<p>A novel indolium compound of general formula (I) and an optical recording material containing the indolium compound.
In general formula (I), ring A is a benzene ring, etc.; R 1 is a group of general formula (II), etc.; R 2 is a C1-C30 organic group, etc.; Y 1 is a C1-C10 alkyl group, etc.; Z 1 is, e.g., a C1-C8 alkyl group optionally substituted with a halogen group and optionally interrupted by -O-, etc.; Z 2 is, e.g., a C1-C8 alkyl group optionally substituted with a halogen group and optionally interrupted by -O-, etc.; a is an integer of 0 to 6; b is an integer of 0 to 5; An q- is a q-valent anion; q is 1 or 2; and p is a number necessary to neutralize an electric charge.</p> |
