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Biphenylene network: A nonbenzenoid carbon allotrope.

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Title: Biphenylene network: A nonbenzenoid carbon allotrope.
Authors: Fan, Qitang, Yan, Linghao, Tripp, Matthias W., Krejcí, Ondrej, Dimosthenous, Stavrina, Kachel, Stefan R., Chen, Mengyi, Foster, Adam S., Koert, Ulrich, Liljeroth, Peter, Gottfried, J. Michael
Source: Science (pre-March 2025). 5/21/2021, Vol. 372 Issue 6544, p852-856. 5p. 4 Diagrams.
Subjects: Biphenylene, Carbon, Allotropy, Synthesis of Nanocomposite materials, Atoms
Abstract: 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. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Biphenylene network: A nonbenzenoid carbon allotrope.
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  Data: <searchLink fieldCode="AR" term="%22Fan%2C+Qitang%22">Fan, Qitang</searchLink><br /><searchLink fieldCode="AR" term="%22Yan%2C+Linghao%22">Yan, Linghao</searchLink><br /><searchLink fieldCode="AR" term="%22Tripp%2C+Matthias+W%2E%22">Tripp, Matthias W.</searchLink><br /><searchLink fieldCode="AR" term="%22Krejcí%2C+Ondrej%22">Krejcí, Ondrej</searchLink><br /><searchLink fieldCode="AR" term="%22Dimosthenous%2C+Stavrina%22">Dimosthenous, Stavrina</searchLink><br /><searchLink fieldCode="AR" term="%22Kachel%2C+Stefan+R%2E%22">Kachel, Stefan R.</searchLink><br /><searchLink fieldCode="AR" term="%22Chen%2C+Mengyi%22">Chen, Mengyi</searchLink><br /><searchLink fieldCode="AR" term="%22Foster%2C+Adam+S%2E%22">Foster, Adam S.</searchLink><br /><searchLink fieldCode="AR" term="%22Koert%2C+Ulrich%22">Koert, Ulrich</searchLink><br /><searchLink fieldCode="AR" term="%22Liljeroth%2C+Peter%22">Liljeroth, Peter</searchLink><br /><searchLink fieldCode="AR" term="%22Gottfried%2C+J%2E+Michael%22">Gottfried, J. Michael</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 5/21/2021, Vol. 372 Issue 6544, p852-856. 5p. 4 Diagrams.
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  Data: <searchLink fieldCode="DE" term="%22Biphenylene%22">Biphenylene</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon%22">Carbon</searchLink><br /><searchLink fieldCode="DE" term="%22Allotropy%22">Allotropy</searchLink><br /><searchLink fieldCode="DE" term="%22Synthesis+of+Nanocomposite+materials%22">Synthesis of Nanocomposite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Atoms%22">Atoms</searchLink>
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  Data: 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. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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              Text: 5/21/2021
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