E↔ 2 A 2 4 Transition in Cr3+:K3Co(CN)6 Crystals

Abstract
Analysis of the Cr(III) 2E↔4A2 spectrum in Cr3+ doped K3Co(CN)6 crystals indicates a 2E splitting of 49 cm−1. The very weak 0‐0 lines are consistent with a centrosymmetric complex and a magnetic dipole transition. The measured lifetime exceeds 100 msec, greater by a factor of 10 than the lifetime computed from the absorption spectrum.
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