COLORANT COMPOUNDS

摘要

Compounds of the formula (see formula one) wherein M is either (1) a metal ion having a positive charge of +y wherein y is an integer which is at least 2, said metal ion being capable of forming a compound with at least two (see formula two) chromogen moieties, or (2) a metal-containing moiety capable of forming a compound with at least two <IMG> chromogen moieties, z is an integer representing the number of <IMG> chromogen moieties associated with the metal and is at least 2, and R1, R2, R3, R4, R5, R6, R7, a, b, c, d, Y, Q-, A, and CA are as defined herei n. 244