title: Lattice-Directed Formation of Covalent and Organometallic Molecular Wires by Terminal Alkynes on Ag Surfaces.
abstract: Surface reactions of 2,5-diethynyl-1,4-bis(phenylethynyl)benzene on Ag(111), Ag(110), and Ag(100) were systematically explored and scrutinized by scanning tunneling microscopy, molecular mechanics simulations, and density functional theory calculations. On Ag(111), Glaser coupling reaction became dominant, yielding one-dimensional molecular wires formed by covalent bonds. On Ag(110) and Ag(100), however, the terminal alkynes reacted with surface metal atoms, leading to one-dimensional organometallic nanostructures. Detailed experimental and theoretical analyses revealed that such a lattice dependence of the terminal alkyne reaction at surfaces originated from the matching degree between the periodicities of the produced molecular wires and the substrate lattice structures.
authors.forename: Jing
authors.initials: J
authors.lastname: Liu
authors.forename: Qiwei
authors.initials: Q
authors.lastname: Chen
authors.forename: Lianghong
authors.initials: L
authors.lastname: Xiao
authors.forename: Jian
authors.initials: J
authors.lastname: Shang
authors.forename: Xiong
authors.initials: X
authors.lastname: Zhou
authors.forename: Yajie
authors.initials: Y
authors.lastname: Zhang
authors.forename: Yongfeng
authors.initials: Y
authors.lastname: Wang
authors.affiliation: ∥Department of Chemical Physics, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Shao
authors.forename: Jianlong
authors.initials: J
authors.lastname: Li
authors.affiliation: ⊥Department of Chemistry, National University of Singapore, Singapore 117543.|#SPURc, 1 CREATE Way, #15-01, CREATE Tower, Singapore 138602.
authors.forename: Wei
authors.initials: W
authors.lastname: Chen
authors.affiliation: ⊥Department of Chemistry, National University of Singapore, Singapore 117543.|#SPURc, 1 CREATE Way, #15-01, CREATE Tower, Singapore 138602.
authors.forename: Guo Qin
authors.initials: GQ
authors.lastname: Xu
authors.affiliation: ¶Groupe Matériaux Crystallins sous Contrainte, CEMES-CNRS, Boîte Postale 94347, 31055 Toulouse, France.
authors.forename: Hao
authors.initials: H
authors.lastname: Tang
authors.forename: Dahui
authors.initials: D
authors.lastname: Zhao
authors.affiliation: #SPURc, 1 CREATE Way, #15-01, CREATE Tower, Singapore 138602.
authors.forename: Kai
authors.initials: K
authors.lastname: Wu
keywords: Ag single crystals; lattice match; molecular wires; surface reaction; terminal alkynes