Biphenylene network: A nonbenzenoid carbon allotrope

Loading...
Thumbnail Image

Access rights

openAccess

URL

Journal Title

Journal ISSN

Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2021-05-21

Major/Subject

Mcode

Degree programme

Language

en

Pages

852-856

Series

Science, Volume 372, issue 6544

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.

Description

| openaire: EC/H2020/839242/EU//EMOF | openaire: EC/H2020/845060/EU//QMKPFM | openaire: EC/H2020/788185/EU//E-DESIGN

Keywords

Other note

Citation

Fan, Q, Yan, L, Trip, M R, Krejci, O, Dimosthenous, S, Kachel, S R, Chen, M, Foster, A, Liljeroth, P & Gottfried, J M 2021, ' Biphenylene network: A nonbenzenoid carbon allotrope ', Science, vol. 372, no. 6544, pp. 852-856 . https://doi.org/10.1126/science.abg4509