Higher Acenes by On-Surface Dehydrogenation: From Heptacene to Undecacene.
Higher Acenes by On-Surface Dehydrogenation: From Heptacene to Undecacene.
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DOI:
10.1002/anie.201802040
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发表时间:
2018-08-13
期刊:
影响因子:
--
通讯作者:
Echavarren AM
中科院分区:
文献类型:
--
作者:
Zuzak R;Dorel R;Kolmer M;Szymonski M;Godlewski S;Echavarren AM
A unified approach to the synthesis of the series of higher acenes up to previously unreported undecacene has been developed through the on‐surface dehydrogenation of partially saturated precursors. These molecules could be converted into the parent acenes by both atomic manipulation with the tip of a scanning tunneling and atomic force microscope (STM/AFM) as well as by on‐surface annealing. The structure of the generated acenes has been visualized by high‐resolution non‐contact AFM imaging and the evolution of the transport gap with the increase of the number of fused benzene rings has been determined on the basis of scanning tunneling spectroscopy (STS) measurements.
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