Biphenylene network: A nonbenzenoid carbon allotrope
| Autor: | Adam S. Foster, Stefan R. Kachel, Linghao Yan, Ondřej Krejčí, Mengyi Chen, Peter Liljeroth, Matthias W. Tripp, Ulrich Koert, J. Michael Gottfried, Stavrina Dimosthenous, Qitang Fan |
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| Přispěvatelé: | Phillips-Universität Marburg, Department of Applied Physics, Surfaces and Interfaces at the Nanoscale, University of Marburg, Atomic Scale Physics, Aalto-yliopisto, Aalto University |
| Rok vydání: | 2021 |
| Předmět: |
Multidisciplinary
Graphene chemistry.chemical_element 02 engineering and technology Dielectric Biphenylene 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Characterization (materials science) law.invention Metal chemistry.chemical_compound chemistry law Carbon allotrope Chemical physics visual_art visual_art.visual_art_medium 0210 nano-technology Carbon |
| Zdroj: | Science |
| ISSN: | 0036-8075 |
| DOI: | 10.1126/science.abg4509 |
| Popis: | openaire: EC/H2020/839242/EU//EMOF | openaire: EC/H2020/845060/EU//QMKPFM | openaire: EC/H2020/788185/EU//E-DESIGN 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. |
| Databáze: | OpenAIRE |
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