高等学校化学学报 ›› 2021, Vol. 42 ›› Issue (Album-4): 1-5.doi: 10.7503/cjcu20200661

• 研究论文 •    

对羟基二联苯诱导的表面金属-有机键断裂

徐智超, 李雪超, 唐雁宁, 张海明(), 迟力峰()   

  1. 苏州大学功能纳米与软物质研究院, 江苏省碳基功能材料与器件 高技术研究重点实验室, 苏州 215123
  • 收稿日期:2020-09-07 出版日期:2020-10-20 发布日期:2021-01-04
  • 通讯作者: 张海明,迟力峰 E-mail:hmzhang@suda.edu.cn;chilf@suda.edu.cn
  • 基金资助:
    国家重点研发计划项目(2017YFA0205002);国家自然科学基金(批准号(21673154);21790053, 51821002)资助

Break of Metal-organic Chains Induced by 4,4′-Dihydroxybiphenyl on Surfaces

XU Zhichao, LI Xuechao, TANG Yanning, ZHANG Haiming(), CHI Lifeng()   

  1. Jiangsu Key Laboratory for Carbon Based Functional Materials & Devices,Institute of Functional Nano & Soft Materials(FUNSOM),Soochow University,Suzhou 215123,China
  • Received:2020-09-07 Online:2020-10-20 Published:2021-01-04
  • Contact: ZHANG Haiming,CHI Lifeng E-mail:hmzhang@suda.edu.cn;chilf@suda.edu.cn
  • Supported by:
    ? Supported by the National Key Research & Development Program of China(2017YFA0205002);the National Natural Science Foundation of China(21673154)

摘要:

金属-有机杂化结构是表面在位反应过程中常见的中间体. 金属-有机杂化结构中金属-有机键的断裂需要克服较高的活化能垒, 往往会引起一系列竞争副反应以及分子的脱附. 本文利用扫描隧道显微镜研究了 4,4′-二羟基联苯分子在金属表面与预先制备的金属-有机链的作用, 发现其氧端能有效地降低金属有机杂化体系断键的能垒, 使得金属-有机键的断键反应能在较低的温度下进行. 该结果提供了一种调控表面反应中间物的新手段.

关键词: 扫描隧道显微镜, 表面在位反应, 金属-有机杂化物

Abstract:

Metal-organic hybrid structures are common intermediates in on-surface reactions. To break metal-organic bonds of the hybrid structures needs to overcome a higher activation barrier, which often leads to a series of competitive side reactions and even desorption of target products. Scanning tunneling microscope(STM) has been used to show that the oxygen terminal of 4,4′-dihydroxybiphenyl can effectively reduce the bond breaking barrier of the metal-organic hybridization system, so that the transfer of metal-organic hybrids can be carried out at a lower temperature. This result provides a new method to regulate the intermediates of on-surface reactions.

Key words: Scanning tunneling microscope, On-surface reaction, Metal-organic hybrid structure

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