Fe3joner
Fe3joner is a term used in iron-chemistry discussions to denote trinuclear iron ion clusters. In the present context, a Fe3joner cluster is a motif consisting of three iron centers bound by μ-oxo, μ-hydroxo, or organic bridging ligands, forming a compact core with an overall positive charge. The oxidation states of the iron centers can vary, with common forms including Fe(III)3 or mixed Fe(II)/Fe(III) configurations. Fe3joner clusters are studied as models for cooperative metal-atom effects and for understanding electron transfer in multimetal systems.
Structure and bonding: The three iron atoms typically adopt a near-planar or edge-sharing geometry, held together
Preparation and occurrence: Fe3joner motifs are reported in coordination-chemistry experiments using iron(II) precursors and multidentate ligands,
Properties and applications: Fe3joner clusters exhibit characteristic electronic transitions and variable spin states, with properties tunable
See also: triiron cluster, ferric chemistry, iron-oxide surfaces, coordination chemistry.