| 摘要 |
<p>A silver halide photographic material comprising a support having provided thereon at least one silver halide emulsion layer containing a compound represented by formula (I): <IMAGE> (I) wherein EAG represents an aromatic group bonding to NA and capable of accepting an electron; NA and NB each represents a nitrogen atom; R1 represents a lone pair, a pi -bond, a sigma -bond, or a substituent other than a hyudrogen atom; n represents 2 or 3; m represents 0 when n represents 2, or m represents 1 and NB has a positive charge when n represents 3; X(-) represents an anion; the groups or bonds represented by R1 may be combined with each other or may be combined with EAG to form a ring; R2 represents R3-CO-, R3-SO2-, R3-CO-N=CH-, or R3-SO2-N=CH-, wherein R3 represents an alkyl group, an aryl group, or a heterocyclic group; the group represented by R2 may be combined with at least one of R1 and EAG to form a ring; Time represents a group releasing PUG via subsequent reaction triggered by the cleavage of the nitrogen-nitrogen bond in said compound represented by formula (I); PUG represents a photographically usefull group; t represents 0 or 1; and dotted lines indicate that at least one of them represents a bond.</p> |
