Patent ID: 8318651

Claim:
An agent for washing or cleaning a textile fabric, the agent comprising at least one component selected from the group consisting of ligands of the general formula (I), ligand-metal complexes of ligands of the general formula (I), and combinations thereof: wherein X and Y each independently represent a moiety selected from the group consisting of ethyl, ethenyl, —CH═N—, —C(C 1-18 -alkyl)═N—, cycloalkyl, cycloheteroalkyl, C 6-10 aryl and heteroaryl, wherein A and B each independently represent a substituent selected from the group consisting of OH, SH, NH 2 , NH(C 1-18 -alkyl) or —N(C 1-18 -alkyl) 2 , in which A is linked by X and B by Y to the biheteroaryl residue via 2 atoms, and in which a so formed skeleton can also be bridged as well as mono- or polysubstituted; and a surfactant.