Identification and electronic characterization of four cyclodehydrogenation products of H2TPP molecules on Au(111)

C–H bond activation and dehydrogenative coupling reactions have always been significant approaches to construct microscopic nanostructures on surfaces. By using scanning tunneling microscopy/spectroscopy (STM/STS) and non-contact atomic force microscopy (nc-AFM) combined with density functional theo...

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Published in:Physical chemistry chemical physics : PCCP 2021-01, Vol.23 (20), p.11784-11788
Main Authors: Lu, Jianchen, Da, Binbin, Xiong, Wei, Du, Renjun, Zhenliang Hao, Ruan, Zilin, Zhang, Yong, Sun, Shijie, Gao, Lei, Cai, Jinming
Format: Article
Language:English
Subjects:
Atomic force microscopy
Chemical reactions
Coupling (molecular)
Dehydrogenation
Density functional theory
Hydrogen bonds
Microscopes
Microscopy
Scanning tunneling microscopy
Spatial distribution
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container_end_page 11788
container_issue 20
container_start_page 11784
container_title Physical chemistry chemical physics : PCCP
container_volume 23
creator Lu, Jianchen
Da, Binbin
Xiong, Wei
Du, Renjun
Zhenliang Hao
Ruan, Zilin
Zhang, Yong
Sun, Shijie
Gao, Lei
Cai, Jinming
description C–H bond activation and dehydrogenative coupling reactions have always been significant approaches to construct microscopic nanostructures on surfaces. By using scanning tunneling microscopy/spectroscopy (STM/STS) and non-contact atomic force microscopy (nc-AFM) combined with density functional theory (DFT), we systematically characterized the atomically precise topographies and electronic properties of H2TPP cyclodehydrogenation products on Au(111). Through surface-assisted thermal excitation, four types of cyclodehydrogenation products were obtained and clearly resolved in the nc-AFM images. The electronic characterization depicts the predominant resonances and their spatial distributions of the four products.
doi_str_mv 10.1039/d1cp01040a
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source Royal Society of Chemistry:Jisc Collections:Royal Society of Chemistry Read and Publish 2022-2024 (reading list)
subjects Atomic force microscopy
Chemical reactions
Coupling (molecular)
Dehydrogenation
Density functional theory
Hydrogen bonds
Microscopes
Microscopy
Scanning tunneling microscopy
Spatial distribution
title Identification and electronic characterization of four cyclodehydrogenation products of H2TPP molecules on Au(111)
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