Molecular motion in organometallic crystals: photoinduced 2π/5 rotation of n-hexyltetramethylcyclopentadienyl ligand

Abstract

Crystalline-state photoreaction of a newly prepared organorhodium dithionite complex with n-hexyltetramethyl-cyclopentadienyl (Cp^Hex: η⁵-C₅Me₄n-Hexyl) ligands was studied by single crystal X-ray diffraction experiments; 2π/5 rotation of the Cp^Hex ligand is induced by the photoisomerization of the dithionite group (μ-O₂SSO₂).