题目：

Structural Variation in Surface-Supported Synthesis by Adjusting the Stoichiometric Ratio of the Reactants

作者：

Zhongmiao Gong,^†,⊥ Biao Yang,^†,⊥ Haiping Lin,^†,⊥ Yunyu Tang,^‡ Zeyuan Tang,^† Junjie Zhang,^†Haiming Zhang,^† Youyong Li,^† Yongshu Xie,^‡ Qing Li,^*,† and Lifeng Chi^*,†

单位：

†Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Road, Suzhou, 215123, Jiangsu, People’s Republic of China
‡Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, People’s Republic of China

摘要：

Surface-supported coupling reactions between 1,3,5- tris(4-formylphenyl)benzene and aromatic amines have been investigated on Au(111) using scanning tunneling microscopy under ultra-high-vacuum conditions. Upon annealing to moderate temperatures, various products, involving the discrete oligomers and the surface covalent organic frameworks, are obtained through thermal-triggered on-surface chemical reactions. We conclude from the systematic experiments that the stoichiometric composition of the reactants is vital to the surface reaction products, which is rarely reported so far. With this knowledge, we have successfully prepared two-dimensional covalently bonded networks by optimizing the stoichiometric proportions of the reaction precursors.

影响因子：

12.881

分区情况：

1区

链接：

http://pubs.acs.org/doi/abs/10.1021/acsnano.5b07601

责任编辑：向丹婷