On-surface synthesis of planar acenes via regioselective aryl–aryl coupling
作者： Pingwu Du , Junfa Zhu , Lin Feng , Tao Wang , Hongxing Jia
DOI: 10.1039/D0CC01043J
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摘要: The reaction of 2, 2′-dibromo-biphenyl on a Ag (111) surface leads to the formation of planar acenes with a high-regioselectivity rather than nonplanar saddle-shaped tetraphenylene as the typical product in solution chemistry. The regioselective aryl–aryl coupling reaction is attributed to the hydrogen repulsion between the reactants on the confined two-dimensional surface.
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