Chromium complex compounds, process for their manufacture and use thereof

A chromium complex compound which, in the form of the free acid, has the formula ##STR186## wherein X is a direct bond or a bridge member selected from the group consisting of methylene, methylene substituted by C.sub.1 - to C.sub.5 -alkyl, methylene substituted by phenyl, --O--, --S--, --NR'--, --SO--, --SO.sub.2 --, --CO--, --CO--CO--, --CO--HN--, --NH--CO--NH, --NH--CS--NH--, --SO.sub.2 NH--, --SO.sub.2 --, --N.dbd.N--, --CH.sub.2 --CH.sub.2 -- and --CH.dbd.CH--, wherein R' is hydrogen or C.sub.1 - to C.sub.5 -alkyl;

• Z is a nitrogen atom or a --CH-- group;
• each of p and q is independently 1 or 2;
• Y is an oxygen atom or a group of the formula --NR--, wherein R is hydrogen or C.sub.1 to C.sub.5 -alkyl, with the proviso that, if Z is a --CH-- group, Y must be an oxygen atom;
• R.sub.1 is hydrogen, sulfo, carboxy, halogen, C.sub.1 - to C.sub.5 -alkyl or C.sub.1 - to C.sub.5 -alkoxy;
• B is a benzene or naphthalene radical;
• D is the radical of an o-hydroxy-aldehyde if Z is the --CH-- group, or, if Z is a nitrogen atom, D is the radical of a coupling component which is selected from the group consisting of phenols, naphthols, naphthyl-amines, pyrazolones, pyrazolimines, pyridones, acetoacetamides, barbituric acids and oxyquinolines;
• n is an integer from 2 to 8;
• and A is a benzene or naphthalene radical or a substituted or unsubstituted aliphatic or cycloaliphatic radical, with the proviso that, if A is an aliphatic or cycloaliphatic radical, q must be 2.