申请人:Eastman Kodak Company
公开号:US04407931A1
公开(公告)日:1983-10-04
Photographic elements, diffusion transfer assemblages, coordination complexes and processes are described which employ a novel nondiffusible compound having a releasable yellow dye moiety or precursor thereof, the compound having the formula: ##STR1## wherein: (a) X represents the atoms necessary to complete a 5- or 6-membered aromatic heterocyclic fused ring; (b) Z represents alkyl, substituted alkyl, aryl or substituted aryl; (c) R represents CN or J--L; (d) J represents a bivalent ##STR2## group; (e) L represents alkyl, substituted alkyl, aryl, substituted aryl, or can be taken together with Z to complete a carbonyl-containing 5- or 6-membered heterocyclic or carbocyclic ring; (f) Z.sup.1 represents the same groups as Z; (g) each CAR independently represents a ballasted carrier moiety capable of releasing the diffusible yellow dye moiety or precursor thereof as a function of development of a silver halide emulsion layer under alkaline conditions; (h) each n is 0 or 1, with the proviso that at least one n is 1; (i) Lig is a monoanionic tridentate ligand; and (j) Me is a polyvalent, hexacoordinate metal ion.
本文描述了一种使用新型非扩散化合物的摄影元素、扩散转移组合物、配位化合物和过程,该化合物具有可释放黄色染料基团或其前体的结构式:##STR1## 其中:(a) X代表必要的原子,以完成一个5-或6-成员的芳香杂环融合环;(b) Z代表烷基、取代烷基、芳基或取代芳基;(c) R代表CN或J-L;(d) J代表二价的##STR2##基团;(e) L代表烷基、取代烷基、芳基、取代芳基,或可以与Z一起完成含羰基的5-或6-成员杂环或碳环;(f) Z.sup.1代表与Z相同的基团;(g) 每个CAR独立地表示一个重负荷载体基团,能够在碱性条件下随着银卤化物乳剂层的显影而释放扩散性黄色染料基团或其前体;(h) 每个n为0或1,但至少有一个n为1;(i) Lig是一个单阴离子三齿配体;(j) Me是一个多价、六配位的金属离子。