Silver halide photographic material containing selenium or tellu

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing

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430600, G03C 109

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active

055478298

ABSTRACT:
A silver halide photographic material comprises a silver halide emulsion layer provided on a support. The silver halide emulsion layer contains a selenium or tellurium compound represented by the formula (I): ##STR1## in which Ch is Se or Te; R.sup.1 is hydrogen, an aliphatic group, an aromatic group, a heterocyclic group, --OR.sup.11 or --NR.sup.12 R.sup.13 ; each of R.sup.11, R.sup.12 and R.sup.13 is hydrogen, an aliphatic group, an aromatic group or a heterocyclic group; and R.sup.2 is an aliphatic group, an aromatic group or a heterocyclic group.

REFERENCES:
patent: 4914002 (1990-04-01), Inoue et al.
Database WPI, Week 9414, Derwent Publications, Ltd., London, GB; AN 94-112206 related to JP-A-6-59366 (Mar. 1994).
Database WPI, Week 9308, Derwent Publications, Ltd., London, GB; AN 93-062489 related to JP-A-5-11385 (Jan. 1993).
Database WPI, Week 9245, Derwent Publications, Ltd., London, GB; AN 92-369896 related to JP-A-4-271341 (Sep. 1992).
Database WPI, Week 7827, Derwent Publications, Ltd., London, GB; AN 78-48284.
Chemical Abstracts 89:146588.

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