题目：

Selective On-surface Covalent Coupling based on Metal-Organic Coordination Template

作者：

Shuaipeng Xing¹, Zhe Zhang², Xiyu Fei³, Wei Zhao⁴, Ran Zhang⁵, Tao Lin⁶, Danli Zhao³, Huanxin Ju⁷, Hu Xu^2,*, Jian Fan^3,*, Junfa Zhu⁷, Yu-qiang Ma^1,8 & Ziliang Shi^1,*

单位：

¹Center for Soft Condensed Matter Physics and Interdisciplinary Research and School of Physical Science and Technology, Soochow University, 215006 Suzhou, China.

²Department of Physics, Southern University of Science and Technology, 518055 Shenzhen, China.

³Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, 215123 Suzhou, China.

⁴Institute for Advanced Study, Shenzhen University, 518060 Shenzhen, China.

⁵Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, Hong Kong.

⁶College of New Materials and New Energies, Shenzhen Technology University, 518118 Shenzhen, China.

⁷National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230029 Hefei, China.

⁸Department of Physics, National Laboratory of Solid State Microstructures, Nanjing University, 210093 Nanjing, China.

摘要：

Control over on-surface reaction pathways is crucial but challenging for the precise construction of conjugated nanostructures at the atomic level. Herein we demonstrate a selective on-surface covalent coupling reaction that is templated by metal-organic coordinative bonding, and achieve a porous nitrogen-doped carbon nanoribbon structure. In contrast to the inhomogeneous polymorphic structures resulting from the debrominated aryl-aryl coupling reaction on Au(111), the incorporation of an Fe-terpyridine (tpy) coordination motif into the on-surface reaction controls the molecular conformation, guides the reaction pathway, and finally yield  pure organic sexipyridine-p-phenylene nanoribbons. Emergent molecular conformers and reaction products in the reaction pathways are revealed by scanning tunneling microscopy, density functional theory calculations and X-ray photoelectron spectroscopy, demonstrating the template effect of Fe-tpy coordination on the on-surface covalent coupling. Our approach opens an avenue for the rational design and synthesis of functional conjugated nanomaterials with atomic precision.

影响因子：

12.353

分区情况：

二区

链接：

https://www.nature.com/articles/s41467-018-07933-0