Di-μ-tert-butanolato-bis[bis(η5-cyclopentadienyl)erbium(III)]

In the centrosymmetric title compound, [Er2(C5H5)4(C4H9O)2], each Er atom is in a distorted tetrahedral coordination environment, coordinated by two cyclopentadienyl rings and two tert-butoxy groups, forming a dimeric complex bridged through the tert-butoxy groups.