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RESEARCH PRODUCT
Light induced excited spin state trapping in the binuclear spin crossover compound [Fe(bpym)(NCS)2]2(bpym) exhibiting a high-spin ground state
Gábor MolnárAna B. GasparShinichiro MouriAzzedine BousseksouN. Ould MoussaJosé Antonio RealKoichiro Tanakasubject
Spin statesChemistryGeneral Physics and AstronomyInfrared spectroscopyPhotochemistryMagnetic susceptibilitysymbols.namesakeCrystallographySpin crossoverExcited statesymbolsPhysical and Theoretical ChemistryRaman spectroscopyGround stateSpin (physics)description
Abstract A photo-magnetic effect is evidenced using near-infrared light in the binuclear complex [Fe(bpym)(NCS) 2 ] 2 (bpym). This compound has a 5 T 2g – 5 T 2g ground state and exhibits no thermal spin crossover – in contrast to the analogous [Fe(bpym)(NCSe) 2 ] 2 (bpym). The estimated photo-conversion ratio is ca. 30%. By means of magnetic susceptibility measurements as well as Raman and infrared absorption spectroscopies, the nature of the photo-induced phase was established as the 5 T 2g – 1 A 1g state, which means that only one iron center is converted to low-spin. The photo-induced state was completely converted back to the ground state either by visible light excitation or by heating.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-05-01 | Chemical Physics Letters |