Patent ID: 8206806
Filing Date: 2012-06-26
Classification: C07F,C09B,G11B

Abstract:
1. A cyanine compound represented by the following general formula (I): wherein: ring A ring A R R R R Anq- represents a q-valent anion, wherein q represents 1 or 2 and p represents a coefficient to keep the charge of the cyanine compound neutral; wherein, in general formula (II): the bond between L and T is a double, conjugated double, or triple bond; L represents a carbon atom; T represents a carbon, oxygen, sulfur, or nitrogen atom; x, y, and z represent 0 or 1; s represents a number from 0 to 4; R R and wherein, in general formula (II′): the bond between L′ and T′ is a double or conjugated double bond; L′ represents a carbon atom; T′ represents a carbon, oxygen, or nitrogen atom; s′ represents a number from 0 to 4; the ring containing L′ and T′ represents a 5-membered or 6-membered ring which may contain a hetero atom, or a naphthalene, quinoline, isoquinoline, anthracene, or anthraquinone ring; and the rings containing L′ and T′ may be substituted with a halogen atom, or a nitro, cyano, alkyl, or alkoxy group; wherein, in general formula III: R Z represents a direct bond or an alkylene group having 1 to 8 carbon atoms which may be substituted, and a methylene group of said alkylene group having 1 to 8 carbon atoms may be replaced by —O—, —S—, —CO—, —COO—, —OCO—, SO M represents a metal atom.