Biphenylene network: A nonbenzenoid carbon allotrope

doi:10.1126/science.abg4509

GSTDTAP > 气候变化

DOI	10.1126/science.abg4509
	Biphenylene network: A nonbenzenoid carbon allotrope
	Qitang Fan; Linghao Yan; Matthias W. Tripp; Ondřej Krejčí; Stavrina Dimosthenous; Stefan R. Kachel; Mengyi Chen; Adam S. Foster; Ulrich Koert; Peter Liljeroth; J. Michael Gottfried
	2021-05-21
发表期刊	Science
出版年	2021
英文摘要	Although graphene forms two-dimensional carbon sheets, other arrangements of carbon rings could also assemble as flat sheers. Fan et al. synthesized an ultraflat biphenylene carbon sheet consisting of sp2-hybridized carbon atoms forming four-, six-, and eight-membered rings on a gold surface. An adsorbed halogenated terphenyl molecule undergoes a two-step interpolymer dehydrofluorination polymerization that creates the four- and eight-membered rings through carbon–carbon bond formation. Scanning tunneling spectroscopy revealed that this carbon allotrope is metallic. Science , abg4509, this issue p. [852][1] The quest for planar sp2-hybridized carbon allotropes other than graphene, such as graphenylene and biphenylene networks, has stimulated substantial research efforts because of the materials’ predicted mechanical, electronic, and transport properties. However, their syntheses remain challenging given the lack of reliable protocols for generating nonhexagonal rings during the in-plane tiling of carbon atoms. We report the bottom-up growth of an ultraflat biphenylene network with periodically arranged four-, six-, and eight-membered rings of sp2-hybridized carbon atoms through an on-surface interpolymer dehydrofluorination (HF-zipping) reaction. The characterization of this biphenylene network by scanning probe methods reveals that it is metallic rather than a dielectric. We expect the interpolymer HF-zipping method to complement the toolbox for the synthesis of other nonbenzenoid carbon allotropes. [1]: /lookup/doi/10.1126/science.abg4509
领域	气候变化 ; 资源环境
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引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/328830
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Qitang Fan,Linghao Yan,Matthias W. Tripp,et al. Biphenylene network: A nonbenzenoid carbon allotrope[J]. Science,2021.
APA	Qitang Fan.,Linghao Yan.,Matthias W. Tripp.,Ondřej Krejčí.,Stavrina Dimosthenous.,...&J. Michael Gottfried.(2021).Biphenylene network: A nonbenzenoid carbon allotrope.Science.
MLA	Qitang Fan,et al."Biphenylene network: A nonbenzenoid carbon allotrope".Science (2021).