Cooperative 1D triazole-based spin crossover FeII material with exceptional mechanical resilience

International audienceThe magnetic spin change associated with the spin crossover (SCO) phenomenon represents a paradigm of bistability at the molecular level that is of current interest because of potential applications in the development of new generations of electronic devices such as nonvolatil memories, molecular sensors and displays.(1-5) The SCO phenomenon is especially observed in FeII complexes in which the paramagnetic high spin state (HS, S = 2) can be switched reversibly to the low spin state (LS, S = 0) by several external stimuli such as temperature, pressure or light irradiation.(6) A huge effort has been devoted to the understanding of the transition mechanisms using inter alia crystallographic tools..