A H-1-NMR STUDY OF PALLADIUM(II) COORDINATION-COMPOUNDS WITH 2-AMINOOXYPROPANOIC ACID AND ITS METHYL-ESTER

The H-1 NMR spectra of 2-aminooxypropanoic acid, its methyl ester and their hydrochlorides have been inspected. The interaction of these lig ands with palladium(II) has been investigated in deuterium oxide and i n dimethyl sulfoxide. The metal has been found to form a chelate with the acid, whereas its esters coordinated to the metal through the nitr ogen atom of the aminooxy group only. In dimethyl sulfoxide, also the methyl esters and hydrochlorides of 2-aminooxybutanoic, 2-aminooxy-3-m ethylpentanoic, as well as the ester of 2-aminooxyhexanoic and the hyd rochloride of the ester of 2-aminooxy-3-phenylpropanoic acid have been studied.