Methine compound and silver halide photographic material containing the methine compound

摘要

'Disclosed is a compound represented by the following general formula (I): <IMAGE> (I) wherein Z1 and Z2 each represents an oxygen atom, a sulfur atom or a selenium atom; R1 represents an alkyl group, an aryl group or a heterocyclic group; Q1 and Q2 each represents a methylene group; Q3 and Q4 each represents an atomic group required to form a five-membered, six-membered or seven-membered ring; L1 represents a methine group; A1 and A2 each represents an atomic group required to form a benzene ring; M1 represents a counter ion for neutralizing the electric charge of the compound; and m1 represents the number required for neutralizing that electric charge. There is also disclosed a silver halide photographic material containing at least one compound of general formula (I).