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 magni-tudes larger than that of the m-BP as a result of the quantum enhanced interference effect,which is also confirmed by the corre-sponding 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
Key words
single molecule conductance/quantum interference/cross-shaped conjugation/benzophenone/scanning tunnel-ing microscopy based break junction
维普
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