Ultrafast dynamics related to spin crossover processes in single crystal [FeII(bpy)3](Pf6)2

Abstract

Transient absorption spectroscopy is used to characterize the ultrafast spin crossover process in iron(II)-tris(bipyridine)-bis(hexafluorophosphate) single crystals. Preliminary data shows evidence of instrument response limited excited state absorption, long-lived (>1 ns) ground state bleach, and oscillatory signals on multiple time scales.