Tris-dipivaloylmethane complexes

Melby et al., 1964). Even though the tetrakis-dipivaloylmethane complex does not exist, the tris-chelate is still capable of adding one or two additional ligands, such as pyridine, picoline, or o-phenanthroline, to form seven- and eight-coordinate species (Selbin et al., 1971). 

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