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libo4sci

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[交流] 碳纳米高人进,关于石墨炔 已有4人参与

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.

这两篇文献中分别提到的graphyne和graphdiyne都是指石墨炔吗?为何名称不同?
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金鳞岂是池中物,一遇风云便化龙
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郑菲

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小木虫: 金币+0.5, 给个红包,谢谢回帖
名称不同是因为含炔键的个数不同,我记得在一篇文献中看到过关于石墨炔的构想就是这么命名的,但目前合成出来的石墨炔好像只有化学所的graphdiyne
4楼2012-11-23 10:04:25
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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 10–11, Pages 1654–1658
2.^ Andrey N. Enyashin and Alexander L. Ivanovskii, 2011, Graphene Allotropes, Phys. Status Solidi B 248(8), 1879–1883, 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]
睡虫不醒今朝有觉今朝睡红尘无忧明日有风明日抽
2楼2012-10-15 21:25:37
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libo4sci

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2楼: 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 ...

谢谢
金鳞岂是池中物,一遇风云便化龙
3楼2012-10-16 09:25:43
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算sanxiao

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是的,石墨炔有很多种同素异形体,还有graphyne-3,graphyne-4....它命名是因为两个苯环间连接的C个数多少。
5楼2013-05-11 11:19:56
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