Stabilization of organic substrate materials including photographic dye images against the action of light

DETAILED DESCRIPTION OF THE INVENTION The above-described objects and others are attained by making at least one compound of the formula (I) coexist with the organic substrate material having an absorption maximum in the wavelength region of about 300 nm to about 800 nm: ##STR2## wherein M represents a Cu, Co, Ni, Pd or Pt atom; R.
sup.
1, R.
sup.
2, R.
sup.
3, R.
sup.
4, R.
sup.
6, R.
sup.
7, R.
sup.
8 and R.
sup.
9 each represents a hydrogen atom, a halogen atom (F, Cl, Br, I) or a cyano group, or an alkyl group, an aryl group, a cycloalkyl group or a heterocyclic ring which may be attached to the carbon atom in the respective ring directly or through a divalent coupling group, or R.
sup.
1 and R.
sup.
2, R.
sup.
2 and R.
sup.
3, R.
sup.
3 and R.
sup.
4, R.
sup.
6 and R.
sup.
7, R.
sup.
7 and R.
sup.
8, or R.
sup.
8 and R.
sup.
9 may combine to form the non-metal atoms necessary to complete a 6-membered ring; R.
sup.
5 represents a hydrogen atom, an alkyl group or an aryl group; and X represents a chlorine atom, a bromine atom or an iodine atom.
The terms "in the presence of" or "coexistant with" as used in the specification refer not only to the coexistence of the substrate material and the compound of the formula (I) in the same solution, dispersion, emulsion or layer, but also to the existence of the organic substrate material and the complex in, for example, adjacent layers of a multilayer photographic material.
As long as the complex compound is associated with the organic substrate material such that it improves the light fastness of the organic substrate, it is used "in the presence of" or it "coexists with" the substrate for purposes of the present invention.
The alkyl groups represented by R.
sup.
1, R.
sup.
2, R.
sup.
3, R.
sup.
4, R.
sup.
6, R.
sup.
7, R.
sup.
8 or R.
sup.
9 include both substituted and unsubstituted alkyl groups containing preferably 1 to 20 carbon atoms excluding the carbon atoms contained in any substituent moiety.
Further, the alkyl groups may be straight chain or branched chain.
Examples of such alkyl groups include a methyl group, an ethyl group, a propyl group, a butyl group, an amyl group, a hexyl group, an octyl group, a decyl group, a hexadecyl group, a heptadecyl group, an octadecyl group and the like