Tuning On-Surface Synthesis of Graphene Nanoribbons by Noncovalent Intermolecular Interactions
Tuning On-Surface Synthesis of Graphene Nanoribbons by Noncovalent Intermolecular Interactions
复制标题
通过非共价分子间相互作用调节石墨烯纳米带的表面合成
DOI：
10.1021/acs.jpcc.8b07618
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发表时间：
2018-10
影响因子：
3.7
通讯作者：
Zhong Dingyong
中科院分区：
文献类型：
--
作者：
Liu Meizhuang;Chen Shenwei;Li Tao;Wang Jiaobing;Zhong Dingyong
On-surface synthesis has been widely used for the precise fabrication of surface-supported covalently bonded nanostructures. Here, we report on tuning the on-surface synthesis of graphene nanoribbons by noncovalent intermolecular interactions on Au(111) surfaces. By introducing noncovalent intermolecular interactions with the companion molecules (dianhydride derivative), intramolecular cyclodehydrogenation of nonplanar precursor molecules (bianthryl derivative) are promoted at 200 °C, with the monomers interlinked by gold atoms instead of the formation of polyanthrylene. By adjusting the deposition sequence of precursor and companion molecules, conjugated graphene nanoribbons can be finally obtained at a temperature of 240 °C, much lower than the synthesis procedures without companion molecules. Density functional theory calculations indicate that intermolecular interactions result in a dramatic shrinkage of the torsional angle between the adjacent anthryl groups of the precursor molecule, aiding the cycl...
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影响因子：
3.7
作者：
Liu Meizhuang;Liu Mengxi;Zha Zeqi;Pan Jinliang;Qiu Xiaohui;Li Tao;Wang Jiaobing;Zheng Yue;Zhong Dingyong
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作者：
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影响因子：
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影响因子：
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影响因子：
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