The dipyrrolide ligand as a template for the spontaneous formation of a tetranuclear iron(II) complex.

The meso-disubstituted dipyrrolide ligand (L) has promoted the formation of a unique tetranuclear iron(II) compound that contains both diazaferrocenyl and distorted-tetrahedral iron centres.

Lithium niobium disulfide, Li0.63NbS2.

Lithium niobium disulfide, Li(0.63)NbS(2), has been prepared by a metathesis reaction between physically separated solid reactants, i.e.