摘要/Abstract
超高真空（ultra-high vacuum，UHV）环境下的表面化学反应是构筑二维（two-dimensional，2D）功能纳米材料的重要方法，近年来，已经引起越来越多研究者的关注.本综述介绍了近几年来有机分子表面化学反应的几种主要类型，如有机金属配位反应、脱卤反应、脱氢环化、缩聚反应、炔烃偶合等，以及利用超高真空扫描隧道显微镜（STM）等测试手段对反应过程以及所形成的精细结构进行分析，特别是反应后结构中分子的连接方式，如有机金属配位键，C-C键，以及氢键等.
关键词: 表面化学反应, STM, 二维纳米结构, 配位键, 共价键, 非共价键
On-surface chemical reactions under ultra-high vacuum play an important role in the synthesis of two-dimensional nanomaterials and have attracted more and more attention in recent years. In this review, we introduce several typical organic on-surface chemical reactions, including organic-metal coordinated reaction, dehalogenation reaction, condensation polymerization, alkyne coupling and so on. Reaction process and products are analyzed in detail by scanning tunneling microscope (STM), especially for the connection way of final products after reaction, such as organic metal coordination bonds, C-C bonds and H-bonds.
Key words: on-surface chemical reaction, STM, 2D nanostructure, coordinate bonds, covalent bonds, non-covalent bonds
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