| 摘要 |
The invention relates to a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith one or more dye-forming couplers and a stabilizer compound of formula (I):whereinR1 and R2 are independently selected from hydrogen or an unsubstituted or substituted alkyl, aryl, alkoxy, aryloxy or amino group or may combine to complete a 5-10 membered heterocyclic ring which may contain in addition to the silicon atom one or more heteroatoms selected from nitrogen, oxygen and sulfur, which ring is unsubstituted or substituted;each Z independently represents the atoms necessary to complete a substituted or unsubstituted arene or heteroaromatic ring system;X is a single bond or a linking group having a single atom which connects the arene rings or heteroaromatic ring systems; orX forms, together with substituents ortho to X on the arene rings or heteroaromatic ring systems, a fused unsubstituted or substituted 5-, 6- or 7-membered ring, which may contain one or two heteroatoms selected from nitrogen, oxygen and sulfur.The stabilizer is used to enhance the image stability of the dye formed from a cyan, magenta or yellow dye-forming coupler without significantly degrading other photographic properties.
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