title: Bottom-Up Synthesis of Metalated Carbyne.
abstract: Because of stability issues, carbyne, a one-dimensional chain of carbon atoms, has been much less investigated than other recent carbon allotropes such as graphene. Beyond that, metalation of such a linear carbon nanostructure with regularly distributed metal atoms is even more challenging. Here we report a successful on-surface synthesis of metalated carbyne chains by dehydrogenative coupling of ethyne molecules and copper atoms on a Cu(110) surface under ultrahigh-vacuum conditions. The length of the fabricated metalated carbyne chains was found to extend to the submicron scale (with the longest ones up to ∼120 nm). We expect that the herein-developed on-surface synthesis strategy for the efficient synthesis of organometallic carbon-based nanostructures will inspire more extensive experimental investigations of their physicochemical properties and explorations of their potential with respect to technological applications.
authors.affiliation: Tongji-Aarhus Joint Research Center for Nanostructures and Functional Nanomaterials, College of Materials Science and Engineering, Tongji University , Caoan Road 4800, Shanghai 201804, P. R. China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Sun
authors.affiliation: Tongji-Aarhus Joint Research Center for Nanostructures and Functional Nanomaterials, College of Materials Science and Engineering, Tongji University , Caoan Road 4800, Shanghai 201804, P. R. China.
authors.forename: Liangliang
authors.initials: L
authors.lastname: Cai
authors.affiliation: Empa, Swiss Federal Laboratories for Materials Science and Technology , 8600 Dübendorf, Switzerland.
authors.forename: Shiyong
authors.initials: S
authors.lastname: Wang
authors.affiliation: Empa, Swiss Federal Laboratories for Materials Science and Technology , 8600 Dübendorf, Switzerland.
authors.forename: Roland
authors.initials: R
authors.lastname: Widmer
authors.affiliation: National Synchrotron Radiation Laboratory, University of Science and Technology of China , Hefei 230029, P. R. China.
authors.forename: Huanxin
authors.initials: H
authors.lastname: Ju
authors.affiliation: National Synchrotron Radiation Laboratory, University of Science and Technology of China , Hefei 230029, P. R. China.
authors.forename: Junfa
authors.initials: J
authors.lastname: Zhu
authors.affiliation: Ministry-of-Education Key Laboratory of Green Preparation and Application for Functional Materials, Faculty of Materials Science & Engineering, Hubei University , Wuhan 430062, P. R. China.
authors.forename: Lei
authors.initials: L
authors.lastname: Li
authors.affiliation: Ministry-of-Education Key Laboratory of Green Preparation and Application for Functional Materials, Faculty of Materials Science & Engineering, Hubei University , Wuhan 430062, P. R. China.
authors.forename: Yunbin
authors.initials: Y
authors.lastname: He
authors.affiliation: Empa, Swiss Federal Laboratories for Materials Science and Technology , 8600 Dübendorf, Switzerland.
authors.forename: Pascal
authors.initials: P
authors.lastname: Ruffieux
authors.affiliation: Empa, Swiss Federal Laboratories for Materials Science and Technology , 8600 Dübendorf, Switzerland.|Department of Chemistry and Biochemistry, University of Bern , 3012 Bern, Switzerland.
authors.forename: Roman
authors.initials: R
authors.lastname: Fasel
authors.affiliation: Tongji-Aarhus Joint Research Center for Nanostructures and Functional Nanomaterials, College of Materials Science and Engineering, Tongji University , Caoan Road 4800, Shanghai 201804, P. R. China.
authors.forename: Wei
authors.initials: W
authors.lastname: Xu