Thermal behaviour of platinum(II) complexes of diethyl and monoethyl 2-quinolylmethylphosphonates

Thermal study of the molecular and ionic platinum(II) complexes of diethyl (2-dqmp) and monoethyl (2-Hmqmp) ester of 2-quinolylmethylphosphonic acid: dihalide adducts trans-PtL2X2 (L=2-dqmp, X=Cl, Br; L=2-Hmqmp, X=Cl), methylquinolinium tetrahaloplatinates [LH+](2)[PtX42-] (L=2-dqmp, X=Cl, Br; L=2-Hmqmp, X=Cl, Br), methylquinolinium hexahalodiplatinates [LH+](2)[Pt2X62-](L=2-Hmqmp, X=Cl, Br) and chelate complex Pt(2-mqmp)(2)center dot 2H(2)O, has been carried out using TG-DTA techniques and the infrared spectroscopic study. There are great differences in the thermal behaviour between various types of complexes, especially between the molecular and the ion-pair salt complexes.