Synthesis and Magnetic Properties of Binuclear Iron(III) Complexes Containing Photoisomerization Ligand

Abstract

Abstract Binuclear iron(III) spin-crossover complex [Fe2(salten)2(az)](BPh4)2 (az = azobis(4-pyridine)) was synthesized and characterized by X-ray single-crystal diffraction, Mössbauer spectra, magnetic susceptibilities and electronic spectra. This complex contains the ligand which is able to photoisomerize as a bridging ligand. The complex exhibited the spin-crossover behavior depending on temperature in solution and solid state. Mössbauer measurements indicated that the complex exhibited rapid spin-equilibrium behavior at room temperature.