中文摘要：

利用扫描隧道显微术并结合理论计算研究了金属co-酞菁和cu-酞菁分子在Au（111）表面上的吸附行为的差异。结果显示，由于这两种分子与衬底电荷转移的差异，引起了分子间相互作用不同，使得两种分子在Au（111）表面表现出不同的吸附组装结构。分子一衬底相互作用与分子间库仑排斥作用两种机制的竞争是造成其组装结构差异的原因。

英文摘要：

The adsorption behavior of cobalt phthalocyanine （CoPc） and copper phthalocyanine （ CuPc ） molecules on Au （ 111 ） was studied with the scanning tunneling microscopy and DFT calculations. The results show that there exists difference in charge transfer for CoPc and CuPc with the gold substrate, leading to different adsorption behaviors due to the different Coulomb repulsion between molecules. The existence of competition between the molecnle-substrate interaction and the intermolecular Coulomb repulsion causes the different assembled structures for CoPc and CuPc on Au（111）.