Selenoboratoborates [B12(BSe3)6]8−: A New Class of Chalcogen-Substituted Icosahedral Boron Clusters


  • Dedicated to Professor Hans Georg von Schnering


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closo-Borate and selenoborate substructures are simultaneously present in the novel cesium hexaselenoborato-closo-dodecaborate Cs8[B12(BSe3)6] (structure of the anion depicted on the right). In this compound, which is accessible through solid-state syntheses, boron clusters and boron-chalcogen compounds are linked together for the first time. The B12 icosahedron in this borate is completely substituted with chalcogen atoms.