Bonding analyses of unconventional carbon allotropes. (September 2017)

• Record Type: Journal Article
• Authors: Esser, Marc; Esser, Arina A.; Proserpio, Davide M.; Dronskowski, Richard
• Is Part Of: Carbon. Volume 121(2017)
• Page Start: 154
• Page End: 162
• Publication Date: 2017-09
• Subjects: Carbon -- Periodicals; Carbone -- Périodiques; Koolstof; Toepassingen; Electronic journals; 546.681
• DOI: 10.1016/j.carbon.2017.05.062
• Languages: English
• ISSNs: 0008-6223

Abstract

Abstract: Utilizing first-principles electronic-structure calculations, we present the chemical-bonding analyses of hypothetical carbon allotropes based on tetrahedral structure motifs such as T-carbon, TY-carbon and T-graphene. While previous publications on these novel allotropes have dealt with ab initio phonon, band structure and DOS calculations, the focus of this work is the partitioning of the band-structure energy in terms of bonding, nonbonding and antibonding contributions. We re-evaluate the chance of making such allotropes by careful bond analyses and compare them to already known equivalents, namely diamond, graphene and the Buckminsterfullerene molecule. A synthetic route is proposed to a new compound, called TY-carbodiimide, that exhibits similar structure and bonding properties as TY-carbon. Graphical abstract: