Colette Boskovic, Gael Labat, Antonia Neels and Hans U. Güdel
A new core topology in pentanuclear complexes
Dalton Trans. 3671-3672 (2003)                 

Abstract: Two members of a new family of pentanuclear Fe^III complexes have been synthesized and found to possess competing antiferromagnetic exchange interactions that result in a spin ground state of S= 5/2.