用电化学扫描隧道显微技术(electrochemical scanning tunneling microscopy, ECSTM) 研究了0.1 mol/L HClO4溶液中TCNQ分子(tetracyanoquinodimethane)在Cu(111)表面的吸附结构. 结果表明, TCNQ分子在Cu(111)表面形成有序的(4×4)结构, 分子的(电子与Cu表面相互作用, 形成“平卧”的水平取向, 且每个分子的长轴方向与Cu(111)-方向平行. 由实验结果提出了分子与基底键接关系的模型. The adsorption structure of TCNQ (tetracyanoquinodimethane) on Cu (111) surface in 0.1 mol / L HClO4 solution was investigated by electrochemical scanning tunneling microscopy (ECSTM). The results showed that the adsorption of TCNQ on Cu (111) The surface has an ordered (4 × 4) structure in which the electrons interact with the Cu surface to form a “horizontal” horizontal orientation with the long axis of each molecule parallel to the Cu (111) Results The model of molecular-substrate bonding was proposed.