二苯甲酮的量子干涉效应  

Quantum interference effect of benzophenone

作　　者：王延泽 胡忠豪 梁蕾 李云川 WANG Yanze;HU Zhonghao;LIANG Lei;LI Yunchuan(Faculty of Materials Science,Wuhan University of Science and Technology,Wuhan 430081,China;State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China)

机构地区：[1]武汉科技大学材料学部,湖北武汉430081 [2]武汉科技大学省部共建耐火材料与冶金国家重点实验室,湖北武汉430081

出　　处：《武汉科技大学学报》2025年第1期42-48,共7页Journal of Wuhan University of Science and Technology

基　　金：国家自然科学基金项目(21705122);武汉科技大学优秀中青年技术创新团队项目(T2021002).

摘　　要：本文以交叉共轭的二苯甲酮为研究对象,将巯甲基作为锚定基团,分别设计了对位和间位连接的分子p-BP和m-BP进行量子干涉效应研究。理论计算结果表明,因量子干涉效应增强,p-BP的电导比m-BP相应值大一个量级以上,这也被相应的电导实验所证实。This article takes benzophenone with cross-conjugation as the research object,and uses mercaptomethyl group as the anchor group.p-BP and m-BP molecules with para and meta connections are designed respectively for the study of the quantum interference effect.The theoretical calculation results show that the conductance of p-BP is more than one magnitudes larger than that of the m-BP as a result of the quantum enhanced interference effect,which is also confirmed by the corresponding conductance experiment.

关 键 词：单分子电导 量子干涉 交叉共轭 二苯甲酮 扫描隧道显微镜裂结 

分 类 号：O641[理学—物理化学]