Hard‐X‐ray‐Induced Excited‐Spin‐State Trapping

Abstract

All Xcited: At low temperatures, an intense beam of hard X-rays excites photoswitchable molecular spin-crossover systems to generate metastable high-spin states (see picture). These states have spectroscopic properties similar to those of the states generated by light-induced excited-spin-state trapping. The new approach offers an excitation source with greater penetration.