Hexa(tert-butoxy)dimolybdenum(III) is a coordination complex of molybdenum(III).

It is one of the homoleptic alkoxides of molybdenum.

An orange, air-sensitive solid, the complex has attracted academic attention as the precursor to many organomolybdenum derivatives.

It an example of a charge-neutral complex featuring a molybdenum to molybdenum triple bond (Mo≡Mo), arising from the coupling of a pair of d3 metal centers.

It can be prepared by a salt metathesis reaction from the THF complex of molybdenum trichloride and lithium tert-butoxide:[1] The complex and its ditungsten (W2) analogue adopt an ethane-like geometry.