Silver halide element containing triazole inhibitors

摘要

This invention relates to a photographic element comprising a support having situated thereon at least one silver halide emulsion layer, the element further containing an image modifying coupler which upon reaction with oxidized color developing agent during processing forms a dye, said image modifying coupler represented by the formula wherein COUP is a photographic coupler moiety; T<1> is a timing or linking group; R<1> and R<2> are independently selected from a halide or hydrogen atom, or an aliphatic, carbocyclic, heterocyclic, carbamoyl, sulfamoyl, carbonamido, sulfonamido, acyl, sulfo, nitro, cyano, amino, alkoxy, alkoxyalkyl, aryloxy, aryloxyalkyl, thioalkoxy, thioalkoxyalkyl, thioaryloxy, or thioaryloxyalkyl group or R<1> and R<2> may form a carbocylic or heterocyclic ring; and n is selected from 0, 1 or 2. More particularly this invention relates to a photographic element containing the above image modifying coupler wherein n is 0 and R<1> and R<2> are independently represented by the formula: **-(Z)m-(X)t- R<3> ** point of attachment to triazole moiety wherein; Z is an aliphatic, carbocyclic, or heterocyclic group; X is oxygen, sulfenate, sulfinate, sulfate, sulfur, sulfonyl, sulfinyl, selenium, selenonyl, seleninyl, or Ä-N(R<4>)-Ü; and R<3> and R<4> are independently selected from hydrogen, or aliphatic, carbocyclic, heterocyclic groups, or acyl groups; m is an integer from 0 to 10; and t is 0, 1 or 2. in