Photographic recording material employing a nondiffusible yellow dye-releasing compound
申请人:EASTMAN KODAK COMPANY
(a New Jersey corporation)
公开号:EP0097849A2
公开(公告)日:1984-01-11
A photographic recording material is described which employs a novel nondiffusible premetallized yellow, redox- dye-releasing (RDR) compound which, as a function of development of a silver halide emulsion layer, releases a diffusible yellow dye or precursor thereof. The compound has the structural formula:
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
(e) L represents alkyl, substituted alkyl, aryl or substituted aryl, or can be taken together with Z to complete a carbonyl-containing 5- or 6-membered heterocyclic or carbocyclic ring;
(f) Z1 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.
描述了一种照相记录材料,它采用了一种新型的不可扩散的预金属化黄色氧化还原染料释放(RDR)化合物,该化合物在卤化银乳剂层的显影过程中会释放出一种可扩散的黄色染料或其前体。该化合物的结构式如下
其中
(a) X 代表完成 5 或 6 元芳香杂环所需的原子;
(b) Z 代表烷基、取代的烷基、芳基或取代的芳基;
(c) R 代表 CN 或 J-L
(d) J 代表二价
(e) L 代表烷基、取代的烷基、芳基或取代的芳基,或可与 Z 共同组成一个含羰基的 5 或 6 元杂环或碳环;
(f) Z1 代表与 Z 相同的基团
(g) 每个 CAR 独立地代表一种压载载体分子,该载体分子能够在碱性条件下随着卤化银乳剂层的显影而释放可扩散的黄色染料分子或其前体;
(h) 每个 n 是 0 或 1,但至少有一个 n 是 1;
(i) Lig 是单阴离子三叉配体;和
(j) Me 是多价六配位金属离子。