Vibrational progression of an electronic Raman transition of solid chromocene in the range of 30–100 cm −1

Abstract

A series of transitions in the Raman spectrum of solid chromocene with shifts of 100 cm −1 > Δ ∼~ ν < 25 cm −1 is assigned to the 0-0 electronic and 0–1, 0–2, 0–3, 0–4 vibrational electronic Raman transitions between the shifted electronic surfaces of ground and excited spin-orbit states. The normal mode coupled to the electronic states is assigned to the torsional mode of the chromocene molecule in the crystal.