Claims
- 1. A photographic element comprising a support having thereon a silver halide emulsion layer comprising silver halide sensitized with a dye having the formula: ##STR16## Z.sub.1 and Z.sub.2 each independently represents the atoms necessary to complete a substituted or unsubstituted thiazole nucleus, a substituted or unsubstituted oxazole nucleus, a substituted or unsubstituted selenazole nucleus, a substituted or unsubstituted quinoline nucleus, a substituted or unsubstituted tellurazole nucleus, or a substituted or unsubstituted pyridine nucleus,
- Z.sub.3 represents the atoms that complete a 6-membered carbocyclic ring,
- R.sub.1 represents substituted or unsubstituted alkyl, substituted or unsubstituted aryl, or, together with R.sub.4, forms a ring structure,
- R.sub.2 represents substituted or unsubstituted alkyl, substituted or unsubstituted aryl, or, together with R.sub.5, forms a ring structure,
- R.sub.3 represents substituted or unsubstituted alkyl, substituted or unsubstituted aryl, or a substituted or unsubstituted heterocyclic or carbocyclic ring wherein said ring does not have a heteroatom attached directly to the methine chain carbon atom of the dye and does not have a carbonyl in the beta position to the methine chain carbon atom of the dye,
- R.sub.4 represents hydrogen or, together with R.sub.1 forms a ring structure,
- R.sub.5 represents hydrogen or, together with R.sub.2 forms a ring structure, and
- X is a counterion as needed to balance the charge of the molecule, and
- a compound having the formula: ##STR17## R.sup.1, R.sup.2, R.sup.3, and R.sup.4 each independently represents halogen, hydroxy, alkoxy, aryloxy, arylthio, aryl, amino, alkylamino, arylamino, or aralkylamino, --A-- is a divalent aromatic residue, and W is nitrogen or .dbd.CR.sup.5 -- where R.sup.5 is hydrogen, alkyl, or halogen.
- 2. A photographic element according to claim 1 wherein Z.sub.1 and Z.sub.2 each independently represents the atoms necessary to complete a substituted or unsubstituted: thiazole nucleus, oxazole nucleus, or selenazole nucleus.
- 3. A photographic element according to claim 2 wherein Z.sub.1 and Z.sub.2 each independently represents the atoms necessary to complete a substituted or unsubstituted benzothiazole nucleus.
- 4. A photographic element according to any of claims 1-3 wherein R.sub.3 represents a heterocyclic or carbocyclic ring wherein said ring does not have a heteroatom attached directly to the methine chain carbon atom of the dye and does not have a carbonyl in the beta position to the methine chain carbon atom of the dye.
- 5. A photographic element according to any of claims 1-3 wherein R.sub.3 is substituted or unsubstituted alkyl or aryl.
- 6. A photographic element accoridng to any of claims 1-3 wherein R.sub.3 is methyl or phenyl.
- 7. A photographic element according to any of claims 1-3, further comprising at least one additional silver halide emulsion layer sensitive to infrared radiation and having a maximum sensitivity that is different from the first silver halide emulsion layer.
- 8. A photographic element according to claim 4, further comprising at least one additional silver halide emulsion layer sensitive to infrared radiation and having a maximum sensitivity that is different from the first silver halide emulsion layer.
- 9. A photographic element according to claim 1 wherein R.sub.3 is selected from the group consisting of substituted or unsubstituted: 4-pyridyl, 3-pyridyl, 2-thienyl, 3-thienyl, ##STR18##
Parent Case Info
This application is a continuation in part of applipation Ser. No. 412,379, filed Sept. 26, 1989, now abandoned.
US Referenced Citations (7)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0288261 |
Oct 1988 |
EPX |
3720138 |
Jan 1988 |
DEX |
Non-Patent Literature Citations (2)
Entry |
Y. L. Slominski et al., UKR Khim Zh. No. 6 vol. 40, pp. 625-629 (1974) Tricarbocyanines with Hydrocarbon Rings in the Chromophore. |
Y. L. Slominski et al., Zh, Org. Khim. No. 2 vol. 15, pp. 400-407 (1979) Polymethine Dyes with Hydrocarbon Bridges Effect of Substituents in the Chromophore on the Color of Tricarbocyanines. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
412379 |
Sep 1989 |
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