L. Bláha, J. Rohovec, P. Hermann, I. Lukeš:
"Complexes of Aminoalkyl-phosphonic Acids and Phosphonodipeptides with
Phosphorus, Sulfur, Silicon, Rel. Elements 109-110, (1996) 213-16
Complexing properties of aminomethylenephosphonic acid and dipeptides glycyl-aminomethylenephosphonic acid and both diastereoisomers
of (S)-methionyl-1-aminoethylphosphonicacid with Pt(II)and Pd(II)were studied pH-metrically at 25°C and at ionic strength of 0.1 mol.dm-3 (KNO3).The stability consts. calcd. indicate formation of the complexes with a metal:ligand molar ratio of 1:1 and 1:2. The differences found for diastereoisomers are much higher than for systems with common dipeptides. Distribution of all species found by potentiometry were confirmed by 31P and 1H NMR titrns.