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Surface-confined formation of conjugated porphyrin-based nanostructures on Ag(111)
Nanoscale ( IF 6.7 ) Pub Date : 2021-11-25 , DOI: 10.1039/d1nr06451g
Nan Cao 1 , Alexander Riss 1 , Eduardo Corral-Rascon 1 , Alina Meindl 2 , Willi Auwärter 1, 3 , Mathias O Senge 3 , Maryam Ebrahimi 1, 4 , Johannes V Barth 1, 3
Affiliation  

Porphyrin-based oligomers were synthesized from the condensation of adsorbed 4-benzaldehyde-substituted porphyrins through the formation of C[double bond, length as m-dash]C linkages, following a McMurry-type coupling scheme. Scanning tunneling microscopy, non-contact atomic force microscopy, and X-ray photoelectron spectroscopy data evidence both the dissociation of aldehyde groups and the formation of C[double bond, length as m-dash]C linkages. Our approach provides a path for the on-surface synthesis of porphyrin-based oligomers coupled by C[double bond, length as m-dash]C bridges – as a means to create functional conjugated nanostructures.

中文翻译:

Ag(111)上共轭卟啉纳米结构的表面限制形成

根据[双键,长度为 m-dash]McMurry 型偶联方案,通过形成 C C 键,由吸附的 4-苯甲醛取代的卟啉缩合合成基于卟啉的低聚物。扫描隧道显微镜、非接触式原子力显微镜和 X 射线光电子能谱数据证明了醛基的解离和 C [双键,长度为 m-dash]C 键的形成。我们的方法为通过 C [双键,长度为 m-dash]C 桥偶联的卟啉基低聚物的表面合成提供了一条途径——作为创建功能性共轭纳米结构的一种手段。
更新日期:2021-11-29
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