Silver halide photographic elements containing bis Au(I) sensitizers

This invention relates to a photographic element comprising a support and a silver halide emulsion layer, the emulsion layer comprising a water soluble Au(I) complex having the formulawherein the complex is symmetrical; L is an organothiosulfonato ligand which is an antifogging, stabilizing, or sens...

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Bibliographische Detailangaben
Hauptverfasser:	CLEARY BRIAN P, CHITTY ALTON L, LOK ROGER, WHITE WEIMAR W
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS
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Beschreibung
Zusammenfassung:	This invention relates to a photographic element comprising a support and a silver halide emulsion layer, the emulsion layer comprising a water soluble Au(I) complex having the formulawherein the complex is symmetrical; L is an organothiosulfonato ligand which is an antifogging, stabilizing, or sensitizing compound, n is 1 to 4, and M is a cationic counterion. This invention further relates to a silver halide photographic element comprising a support and a silver halide emulsion layer, the emulsion layer comprising an organothiosulfonato Au(I) complex having the formulawhereinM is a cationic counterion;A is a substituted or unsubstituted organic group;and n is 1 to 4; and wherein the compound is symmetrical.It further relates to a method of preparing a silver halide emulsion utilizing said organothiosulfonato Au(I) complexes.