title: Cyclotrimerization of arylalkynes on Au(111).
abstract: Surface-assisted cyclotrimerization of arylalkynes was studied on Au(111) by means of scanning tunneling microscopy (STM) under ultra-high vacuum (UHV) conditions. Upon thermal activation, cyclotrimerization of 1,3,5-tris-(4-ethynylphenyl)benzene proceeds readily and with high selectivity, and results in two-dimensional covalently bonded polyphenylene nanostructures exhibiting a honeycomb topology.
authors.affiliation: Empa, Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Duebendorf, Switzerland. roman.fasel@empa.ch.
authors.forename: Jia
authors.initials: J
authors.lastname: Liu
authors.forename: Pascal
authors.initials: P
authors.lastname: Ruffieux
authors.forename: Xinliang
authors.initials: X
authors.lastname: Feng
authors.forename: Klaus
authors.initials: K
authors.lastname: Müllen
authors.forename: Roman
authors.initials: R
authors.lastname: Fasel