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A distinct type of metavalent bonding (MVB) is recently proposed to explain an unusual combination of anomalous functional properties of group IV chalcogenide crystals, whose electronic mechanisms and origin remain controversial. Through theoretical analysis of evolution of bonding along continuous paths in structural and chemical composition space, emergence of MVB in rocksalt chalcogenides is demonstrated...
Single‐layer graphene stabilization: An efficient methodology to make stable aqueous solutions of single‐layer graphene has been demonstrated by exploiting charge‐transfer interactions with a coronene tetracarboxylate acceptor molecule (see figure). Microscopic studies reveal exfoliation of few‐layer graphene and selective stabilization of single‐layer graphene in large quantities.
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