CYANINVERBINDUNGEN, OPTISCHE AUFZEICHNUNGSMATERIALIEN SOWIE OPTISCHE AUFZEICHNUNGSTRÄGER

摘要

A novel cyanine compound of general formula (I) showing thermal behaviors suitable for optical recording applications, an optical recording material containing the same, and an optical recording material containing the same.
wherein ring A and ring B each represent a benzene or naphthalene ring that may be substituted; at least one of the pair of adjacent groups R1 and R2 and the pair of adjacent groups R3 and R4 represent a pair of benzyl groups, and the other paired groups each represent an alkyl group having 1 to 4 carbon atoms or are connected to each other to form a 3- to 6-membered ring; Y1 and Y2 each represent an organic group having 1 to 30 carbon atoms; An m- represents an m-valent anion; m represents an integer 1 or 2; and p represents a coefficient for maintaining the charge neutrality.