Pd Porphyrin Cofacial Dimer Formed via CO2 Binding: An in Situ Electrochemistry Scanning Tunneling Microscopy Study

被引:11
作者
Wang, Yu-Qi [1 ,2 ]
Wang, Xiang [1 ,2 ]
Feng, Ya-Chen [1 ,2 ]
Yan, Hui-Juan [1 ,2 ]
Wang, Dong [1 ,2 ]
Wan, Li-Jun [1 ,2 ]
机构
[1] Chinese Acad Sci, CAS Res Educ Ctr Excellence Mol Sci, Inst Chem, CAS Key Lab Mol Nanostruct & Nanotechnol,Beijing, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
基金
中国国家自然科学基金; 国家重点研发计划;
关键词
OXYGEN REDUCTION REACTION; MANGANESE PORPHYRINS; ELECTRONIC-STRUCTURE; SUBSTITUENTS; SURFACE;
D O I
10.1021/acs.jpcc.1c07499
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The self-assembled Pd(II) meso-tetra(4-carboxyphenyl)porphine (PdTCPP) adlayer was molecularly resolved on a Au(111) surface under electrochemical control. In a CO2 environment, the molecules show an apparent height of molecular bilayer, which are assigned to PdTCPP-CO2-PdTCPP cofacial dimers. The study of self-assemblies of a series of Pd(II) meso-tetraphenylporphyrin (PdTPP) derivatives with different substitutions indicates the cofacial dimer is only observed for molecules with carboxyl substituents.
引用
收藏
页码:24915 / 24919
页数:5
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