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General Syntheses of Tris bidentate Complexes

By far the tris-type complexes such as tris(diamine)cobalt(III), tris(dicarboxylato)-cobaltate(III), and tris(p-ketoacidato)cobalt(III) are best preparwi by oxidizing the cobalt(II) ion in the presence of the ligand in basic form. However, Bauer and Drinkard utilized sodiiun tricarbonatocobaltate(III) trihydrate in a general method to prepare  [Pg.33]

Tris(ethylenediamine)cobalt(III) chloride Tris(l,3-diamino-2-propanol x balt(III) nitrate Tris(acetylacetonato)cobalt(III) [Pg.33]

Sodium tris(mercaptoacetato)cobaltate(III) 6-hydrate Tris(ethylenediamine)cobalt(III) tris(salicylato)cobaltate(III) [Pg.33]

Bauer and Drinkard described several features of tricarbonatocobaltate(III) sodium as an intermediate [Pg.34]

This general method was then extended not only to complexes with other bidentate ligands but also to those with a terdentate or a sexadentate ligand, e.g. bidentates, (+)-hydroxymethylenecamphor (-+-)-3-acetylcamphor and (—)-cyclohexanediamine terdentates, 2,3-diaminopropionic add 2,4-diamino-butyric acid l,3-diamino-2-propanol and l-methyl-2,4,6-triaminocyclohexane [Pg.34]


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Bidentates

Complex bidentate

Tri complexes

Tris 2 ], synthesis

Tris bidentate complexes

Tris complexes

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