EuFOD

The complex displays a particular affinity for "hard" Lewis bases, such as the oxygen atom in ethers and the nitrogen of amines.

It chelates with lanthanides to form Ln(fod)3 for La = Nd, Sm, Eu, Tb, and Lu.

[1] In its original application, Eu(fod)3 was used in NMR spectroscopy to gain additional chemical shift dispersion.

[4] Eu(fod)3 serves as a Lewis acid catalyst in organic synthesis including stereoselective Diels-Alder and aldol addition reactions.

For example, Eu(fod)3 catalyzes the cyclocondensations of substituted dienes with aromatic and aliphatic aldehydes to yield dihydropyrans, with high selectivity for the endo product.

Skeletal formula of EuFOD
Ball-and-stick model of the EuFOD complex