Iron chemistry of an asymmetrically substituted, triazole-functionalised calixarene ligand

The synthesis and characterisation of an asymmetrically substituted calix-triazole ligand are reported. The ligand reacts with the Fe(II) precursor Fe2Mes4 to yield an iron(II) calixarene complex that is oxidised by dioxygen to provide a dinuclear Fe(III) compound featuring an oxido bridge.