title: Tip-induced C-H activation and oligomerization of thienoanthracenes.
abstract: The tip of a scanning tunneling microscope (STM) can be used to dehydrogenate freely-diffusing tetrathienoanthracene (TTA) molecules on Cu(111), trapping the molecules into metal-coordinated oligomeric structures. The process proceeds at bias voltages above ~3 V and produces organometallic structures identical to those resulting from the thermally-activated cross-coupling of a halogenated analogue. The process appears to be substrate dependent: no oligomerization was observed on Ag(111) or HOPG. This approach demonstrates the possibility of controlled synthesis and nanoscale patterning of 2D oligomer structures on selected surfaces.
authors: Centre Énergie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique, Université du Québec, 1650 boulevard Lionel-Boulet, Varennes, QC J3X 1S2, Canada. macleod@emt.inrs.ca rosei@emt.inrs.ca.
authors: L E
authors: LE
authors: Dinca
authors: J M
authors: JM
authors: MacLeod
authors: J
authors: J
authors: Lipton-Duffin
authors: C
authors: C
authors: Fu
authors: D
authors: D
authors: Ma
authors: D F
authors: DF
authors: Perepichka
authors: F
authors: F
authors: Rosei