Bottom-Up Synthesis of Metalated Carbyne

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• 作者：Qiang Sun ; Liangliang Cai ; Shiyong Wang ; Roland Widmer ; Huanxin Ju ; Junfa Zhu ; Lei Li ; Yunbin He ; Pascal Ruffieux ; Roman Fasel ; Wei Xu
• 刊名：Journal of the American Chemical Society
• 出版年：2016
• 出版时间：February 3, 2016
• 年：2016
• 卷：138
• 期：4
• 页码：1106-1109
• 全文大小：322K
• ISSN：1520-5126

文摘

Because of stability issues, carbyne, a one-dimensional chain of carbon atoms, has been much less investigated than other recent carbon allotropes such as graphene. Beyond that, metalation of such a linear carbon nanostructure with regularly distributed metal atoms is even more challenging. Here we report a successful on-surface synthesis of metalated carbyne chains by dehydrogenative coupling of ethyne molecules and copper atoms on a Cu(110) surface under ultrahigh-vacuum conditions. The length of the fabricated metalated carbyne chains was found to extend to the submicron scale (with the longest ones up to ～120 nm). We expect that the herein-developed on-surface synthesis strategy for the efficient synthesis of organometallic carbon-based nanostructures will inspire more extensive experimental investigations of their physicochemical properties and explorations of their potential with respect to technological applications.