Author:
Ewels Christopher P.,Rocquefelte Xavier,Kroto Harold W.,Rayson Mark J.,Briddon Patrick R.,Heggie Malcolm I.
Abstract
In recent years, a plethora of theoretical carbon allotropes have been proposed, none of which has been experimentally isolated. We discuss here criteria that should be met for a new phase to be potentially experimentally viable. We take as examples Haeckelites, 2D networks of sp2-carbon–containing pentagons and heptagons, and “penta-graphene,” consisting of a layer of pentagons constructed from a mixture of sp2- and sp3-coordinated carbon atoms. In 2D projection appearing as the “Cairo pattern,” penta-graphene is elegant and aesthetically pleasing. However, we dispute the author’s claims of its potential stability and experimental relevance.
Funder
European Commission
NSF | MPS | Division of Materials Research
NSF | MPS | Division of Chemistry
Florida State University
Swedish Research Council Formas
Publisher
Proceedings of the National Academy of Sciences
Cited by
76 articles.
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