Oxidative transformations of amidophenolate complexes of gallium( iii).

The oxidation of the earlier synthesized [4,6-di- tert-butyl- N-(2,6-diisopropylphenyl)- o-amidophenolato]methylgallium( iii) ( 1a) and [4,6-di- tert-butyl- N-(2,6-diisopropylphenyl)- o-amidophenolato]iodogallium( iii) ( 1b) by different reagents, such as mercury( ii) salts, molecular iodine, and tetramethylthiuram disulfide, was studied. The oxidation of the starting diamagnetic compounds gives pentacoordinated gallium( iii) bis- o-iminosemiquinolates 4-7 as the major products, which are generated as a result of the further disproportionation of intermediate monoradical tetracoordinated metal complexes. [ABSTRACT FROM AUTHOR]