Imaging process involving thermal decomposition of Te(II) coordination complexes
AssigneeEastman Kodak Company
InventorHenry J. Gysling
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Abstract
Tellurium images are formed by the decomposition of tellurium (II) coordination complexes in the presence of a catalyst. The complexes are characterized in that at least one of the four coordination positions of the tellurium (II) is occupied by a sulfur containing ligand. Preferred ligands that can be coordinated with tellurium are sulfur containing bidentate anionic ligands. Complexes formed using these preferred ligands are more hydrolytically stable than other tellurium (II) complexes having sulfur containing ligands and yet are still capable of providing catalytic amplification.
Claims9
A process for forming a visible metallic image which comprises the steps of
- (1) forming an image comprising nuclei of one or more metals selected from the group consisting of Te, Pd, Ag and Cu;
- and
- (2) employing said nuclei to catalyze the thermal decomposition of a coordination complex to form said visible image, said coordination complex being a complex of tellurium (II) and at least one sulfur containing ligand wherein said tellurium (II) is coordinated to said ligand through said sulfur.
Dependencies are inferred from the claim text.