Abstract: The invention relates to compounds of general formula (I), in which each E independently represents O or NR1, with the proviso that at least 1 E is not O and at least 1 R1 represents a substituted C1-22 alkyl of the general formula (IIa) or (IIb) or (IIIa) or (IIIb), in which Q represents O or CH2, w represents a number from 1 to 22, q represents 1 or 2 and A+ represents a cation selected from alkali metal cations where q=1, ½ alkaline earth cations where q=2 and ammonium ions where q=1, as well as metal complexes having this ligand compound and dishwashing detergents which contain such metal complexes.

Abstract: The invention relates to compounds of general formula (I), in which each E independently represents O or NR1, with the proviso that at least 1 E is not O and at least 1 R1 represents a substituted C1-22 alkyl of the general formula (IIa) or (IIb) or (IIIa) or (IIIb), in which Q represents O or CH2, w represents a number from 1 to 22, q represents 1 or 2 and A+ represents a cation selected from alkali metal cations where q=1, ½ alkaline earth cations where q=2 and ammonium ions where q=1, as well as metal complexes having this ligand compound and dishwashing detergents which contain such metal complexes.