Hexanuclear pivalate iron(iii) cluster with a functionalized salicylaldehyde

Abstract

In the last two decades there is a continuing search for new synthetic methods that can yield new polynuclear molecular species with unusual or novel magnetic properties. In this paper, we describe the use of aldehyde-based chelate ligand, 3-formylsalicylic acid, for the synthesis of new Fe clusters. From a structural point of view, this ligand could be compared with salicylaldehyde, which is further substituted by a carboxilic group in metha position to the hydroxy group. The approach we employed was the use of trinuclear species that have proven previously to be excellent starting points for the synthesis of high nuclearity iron(III) clusters.