Methine compound and silver halide photographic material containing the same
Disclosed is a compound represented by the following formula (I): wherein Z 1 represents an atomic group necessary to form a 5- or 6-membered nitrogen-containing heterocyclic ring; Z 2 represents an atomic group necessary to form a 5- or 6-membered heterocyclic ring, Z 2 may further be substituted, or may be condensed with a hetero ring of a benzene ring; R 1 represents a hydrogen atom, a halogen atom, a mercapto group, an alkyl group, an alkenyl group, an aryl group, an alkylthio group, an alkenylthio group, or an arylthio group; L 1 and L 2 each represents a methine group; p 1 , represents 0 or 1; V 1 represents a substituent; and n represents 0, 1 or 2, and when n represents 2, a plurality of V 1 may be the same or different.
1 - 8 . (canceled)
9 . A compound represented by the following formula (I) or (II):
wherein Z 1 represents an atomic group necessary to form thiazole; Z 2 represents an atomic group necessary to form a furan ring or a thiophene ring, or Z 2 may be condensed with a benzene ring; R 1 represents a hydrogen atom, a halogen atom, a mercapto group, an alkyl group, an alkenyl group, an aryl group, an alkylthio group, an alkenylthio group, or an arylthio group; L 1 and L 2 each represents a methine group; p 1 represents 0 or 1; V 1 represents a substituent; n represents 0, 1 or 2, and when n represents 2, a plurality of V 1 may be the same or different; R 2 represents an alkyl group, an aryl group, or a heterocyclic group; M 1 represents an electric charge balancing counter ion; and m 1 represents a number of from 0 to 10 necessary to neutralize the electric charge of the molecule.
10 . The compound as claimed in claim 9 , wherein the atomic group for Z 2 is a furan ring.
11 . The compound as claimed in claim 9 , wherein the compound represented by formula (I) is represented by the following formula (IV):
wherein Z 4 represents an oxygen atom or a sulfur atom; Z 3 represents an atomic group necessary to form thiazole; V 2 and V 3 each represents a substituent, or V 2 and V 3 may form a benzene ring containing V 2 and V 3 ; and R 1 , L 1 , L 2 , p 1 , V 1 , and n each has the same meaning as described in formula (I).
12 . The compound as claimed in claim 9 , wherein R 2 represents an alkyl group having an aryl group as a substituent or an aryl group.
13 . The compound as claimed in claim 9 , wherein at least one substituent represented by V 1 is a group having at least one sulfo group, carboxyl group, phosphonic acid group or hydroxyl group.