US 6,372,419 B1 · Silver halide photographic material

Abstract

A silver halide photographic material comprising a support having provided thereon at least a silver halide emulsion layer, wherein the material contains at least one metal complex contained in any of groups A, B and C: group A: an optically active metal complex; group B: a metal complex comprising a metal ion selected from the group consisting of transition metallic elements belonging to period 4 to 6 and group III to XI of the Periodic Table, and typical metallic elements belonging to period 4 to 6 and group XII to XIV of the Periodic Table, and at least one ligand represented by the following formula (I): wherein Z represents an atomic group to form a 5- or 6-membered ring; A represents a carbon atom or a nitrogen atom; X represents O31, S31 , NR1R2 or COO−; R1 and R2 each represents a hydrogen atom or an alkyl group; R represents a substituent; and n represents 0 or an integer of from 1 to 6; group C: a metal complex selected from a porphyrin complex, a porphycene complex, a phthalocyanine complex, a chlorin complex, and a bacteriochlorin complex.

Claims17

Dependent claims

A silver halide photographic material comprising a support having provided thereon at least a silver halide emulsion layer containing silver halide grains, wherein said silver halide grains are doped with at least one metal complex containing in any of groups A, B and C:

group A:
an optically active metal complex;
group B:
a metal complex comprising a metal ion selected from the group consisting of transition metallic elements belonging to period 4 to 6 and group III to XI of the Periodic Table, and typical metallic elements belonging to period 4 to 6 and group XII to XIV of the Periodic Table, and at least one ligand represented by the following formula (I):
wherein Z represents an atomic group to form a 5- or 6-membered ring;
A represents a carbon atom or a nitrogen atom;
X represents O−, S−, NR1R2 or COO—;
R1 and R2 each represents a hydrogen atom or an alkyl group;
R represents a substituent;
and n represents an integer of from 0 to 6;
group C:
a metal complex selected from the group consisting of a porphyrin complex, a porphycene complex, a phthalocyanine complex, a chlorin complex, and a bacteriochlorin complex.

9 more elements

group A:
an optically active metal complex;
group B:
a metal complex comprising a metal ion selected from the group consisting of transition metallic elements belonging to period 4 to 6 and group III to XI of the Periodic Table, and typical metallic elements belonging to period 4 to 6 and group XII to XIV of the Periodic Table, and at least one ligand represented by the following formula (I):
wherein Z represents an atomic group to form a 5- or 6-membered ring;
A represents a carbon atom or a nitrogen atom;
X represents O−, S−, NR1R2 or COO−;
R1 and R2 each represents a hydrogen atom or an alkyl group;
R represents a substituent;
and n represents an integer of from 0 to 6;
group C:
a metal complex selected from the group consisting of a porphyrin complex, a porphycene complex, a chlorin complex, and a bacteriochlorin complex.

9 more elements

Dependencies are inferred from the claim text.

Silver halide photographic material

Life of this patent

Silver halide photographic material

Life of this patent

Abstract

Claims17