Abstract

The ligands 2,5-dimethyl- and 2-methyl-5-chloro-8-quinolinol react with aluminium in aqueous solution to precipitate tris-chelates. Ligands which have a substituent in the 3-position as well as in the 2-position, viz., 2,3-dimethyl-nd 2,3,4-trimethyl-8-quinolinol, react with aluminium under similar conditions to precipitate bis-chelates. Mass spectral studies on the latter complexes indicate that they are dimeric and contain an Al-O-Al linkage. Infrared spectra are reported for all of the complexes.

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