New Complexes of 2-Amino-4-Chlorobenzoic Acid with Yttrium and Some Lanthanides
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The conditions of formation of solid Y(III), La(III), Pr(III), Sm(III), Gd(III), Dy(III), Tm(III) and Lu(III) compounds with 2-amino-4-chlorobenzoic acid were determined. The complexes obtained have the general formula: Ln(C6H3NH2ClCOO)3· H2O. Their solubilities in water at 20°C are of the order of 105 mol dm-3. The IR spectra and X-ray diffractograms were recorded. Upon heating, the compounds undergo dehydration. They then decompose to the corresponding oxides, with intermediate formation of LnOCl for the Pr, Sm and Gd compounds.
Keywordsbenzoates lanthamide complexes yttrium complexes
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