| abstract |
This invention relates to a silver halide photographic element comprising a support and a silver halide emulsion layer, the emulsion layer comprising a Au(I) compound having the formula wherein Z is a substituted or unsubstituted alkyl, aryl, alkylaryl, or heterocyclic group; and R1, R2, R3 and R4 are independently substituted or unsubstituted alkyl, aryl, alkylaryl, or heterocyclic groups, or one or both of R1 and R2 or R3 and R4, may independently combine to form a nitrogen containing ring with the nitrogen to which they are attached. |