Nature Communications (Jun 2018)
On-surface synthesis of poly(p-phenylene ethynylene) molecular wires via in situ formation of carbon-carbon triple bond
Abstract
Incorporating carbon-carbon triple bonds into conjugated chains typically requires acetylenic precursors. Here, the authors synthesize poly(p-phenylene ethynylene) molecular wires on Cu(111) by directly coupling trichloromethyl-containing precursors, forming C-C triple bonds in situ