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Malko D, Neiss C, Vines F, Gorling A. Competition for Graphene: Graphynes with Direction-Dependent Dirac Cones. Phy Rev Let 2012;108:086804-8.

Li GX, Li YL, Liu HB, Guo YB, Li YJ, Zhu DB. Architecture of graphdiyne nanoscale films. Chem Commun 2010;46:3256-8.

ÕâÁ½ÆªÎÄÏ×ÖзֱðÌáµ½µÄgraphyneºÍgraphdiyne¶¼ÊÇָʯīȲÂð£¿ÎªºÎÃû³Æ²»Í¬£¿
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luoxinfire

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Graphyne is an allotrope of carbon. Its structure is one-atom-thick planar sheets of sp and sp2-bonded carbon atoms arranged in crystal lattice. It can be seen as a lattice of benzene rings connected by acetylene bonds. Depending on the content of acetylene groups, graphyne can be considered a mixed hybridization, spn, where 1 < n < 2 [1], [2], and thus differs from the hybridization of graphene (considered pure sp2) and diamond (pure sp3).

The existence of graphyne has been conjectured more than 50 years ago [3] but it has attracted attention after the discovery of fullerenes. Graphdiyne (graphyne with diacetylene groups) has successfully been synthesized on copper substrates[4]. Recently it has been advertised as a concurrent for graphene, due to the potential of direction-dependent Dirac cones[5].

[edit] References1.^ R.B. Heimann, S.E. Evsvukov, and Y. Koga, 1997, Carbon allotropes: a suggested classification scheme based on valence orbital hybridization, Carbon, Volume 35, Issues 10¨C11, Pages 1654¨C1658
2.^ Andrey N. Enyashin and Alexander L. Ivanovskii, 2011, Graphene Allotropes, Phys. Status Solidi B 248(8), 1879¨C1883, DOI:10.1002/pssb.201046583
3.^ Balaban AT, Rentia CC, Ciupitu E.. Rev. Roum. Chim. 1968. V. 13. P. 231.
4.^ Guoxing Li, Yuliang Li, Huibiao Liu, Yanbing Guo, Yongjun Li and Daoben Zhu, 2010, Architecture of graphdiyne nanoscale films, Chem. Commun., 46, 3256-3258 DOI: 10.1039/B922733D [1]
5.^ Daniel Malko, Christian Neiss, Francesc Viñes, and Andreas Görling, 2012, Competition for Graphene: Graphynes with Direction-Dependent Dirac Cones, Phys. Rev. Lett. 108, 086804,Published February 24 [2]
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2Â¥2012-10-15 21:25:37
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libo4sci

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2Â¥: Originally posted by luoxinfire at 2012-10-15 21:25:37
Graphyne is an allotrope of carbon. Its structure is one-atom-thick planar sheets of sp and sp2-bonded carbon atoms arranged in crystal lattice. It can be seen as a lattice of benzene rings connected ...

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