Structural Diversity and Flexibility of MgO Gas-Phase Clusters


  • We acknowledge financial support from the Deutsche Forschungsgemeinschaft (Cluster of Excellence UniCat and Sonderforschungsbereich 546) and the Fonds der Chemischen Industrie. K.K. thanks the International Max Planck Research School “Complex Surfaces in Materials Science” for a fellowship. We gratefully acknowledge the support of the Stichting voor Fundamenteel Onderzoek der Materie (FOM) for providing beam time on FELIX, and the FELIX staff for their skilful assistance, in particular Dr. B. Redlich and Dr. A. F. G. van der Meer.


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Working out the gas charge: Only one structure type is known for bulk MgO. In contrast, quantum chemical calculations combined with infrared multiple photon dissociation experiments demonstrate that neutral and cationic gas-phase clusters of MgO display unusual structural diversity and flexibility (see picture).