| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical recording material made of a compound with an optical recording material suitable for DVD-R or the like. SOLUTION: This optical recording material includes an indole compound represented by general formula (I), wherein a ring A and a ring A' each represent a benzene ring, a naphthalene ring or a pyridine ring, R1 and R1 ' each represent a halogen atom, a nitro group, a cyano group, a 1-8C alkyl group, a 1-8C alkoxy group or a 6-30C aryl-containing group, R2 and R2 ' each represent a hydrogen atom, a 1-8C alkyl group, a 1-8C alkenyl group, a 1-8C alkylthio group, a 1-8C alkoxy group, a 1-8C carbonyl group, or a 6-30C aryl-containing group, X1 and X2 each represent a hydrogen atom or a group forming a five- membered ring or a six-membered ring, Y and Y' each represent a hydrogen atom, a 1-30C organic group, Z represents a hydrogen atom, a halogen atom, a cyano group, a 1-8C alkyl group and a 6-30C aryl-containing group, r and r' each represent an integer from 0 through 2, An<n-> represents a n-th valent anion, n represents an integer of 1 or 2 and q represents a coefficient for keeping charges neutral. |
