FLEXIDENTATE BEHAVIOR OF N-(2-HYDROXYETHYL)-1,2-ETHANEDIAMINE(L) IN PALLADIUM(II) HALIDE-COMPLEXES - THERMAL, IR AND H-1-NMR STUDIES AND SINGLE-CRYSTAL X-RAY-ANALYSIS OF [PDLCL2]

Tridentate and bidentate coordination behaviour of N-(2-hydroxyethyl)- 1,2-ethanediamine(L) with PdX2 (X = Cl or Br) and their isomerization (N,N,O --> N,N coordination) both in the solid state and in the soluti on have been studied by thermal techniques (DSC and TG-DTA), IR and H- 1 NMR spectroscopy. One of the isomers [PdLCl2] has been characterized by single crystal X-ray analysis. The palladium(II) ion possesses a s quare planar geometry with the N2Cl2 donor set.