Geagea Elie, Jeannoutot Judicael, Morgenthaler Louise, Lamare Simon, Rochefort Alain, Palmino Frank, Chérioux Frédéric
Univ. Bourgogne Franche-Comté, FEMTO-ST, UFC, CNRS, 15B avenue des Montboucons, 25030 Besançon Cedex, France.
Chem Commun (Camb). 2021 Jun 21;57(49):6043-6045. doi: 10.1039/d1cc01173a. Epub 2021 May 25.
The growth of graphene nanoribbons has been widely investigated on metal surfaces in an ultrahigh vacuum. Here, we re-investigate the growth of graphene nanoribbons obtained by thermal annealing of 9,9'-bianthryl derivatives on a Cu(111) surface by using scanning tunnelling microscopy. On the basis of our results, we propose to complete the reaction mechanism commonly accepted in the literature by adding an intramolecular hydrogen atom transfer from the 2,2'-positions to the 10,10'-positions as a key-step in the formation of (3,1)-graphene nanoribbons on a Cu(111) surface.
石墨烯纳米带的生长已在超高真空条件下的金属表面得到广泛研究。在此，我们通过扫描隧道显微镜重新研究了在Cu(111)表面上对9,9'-联蒽衍生物进行热退火所得到的石墨烯纳米带的生长情况。基于我们的研究结果，我们建议通过添加从2,2'-位到10,10'-位的分子内氢原子转移作为在Cu(111)表面形成(3,1)-石墨烯纳米带的关键步骤，来完善文献中普遍接受的反应机理。
