Selective Intramolecular Dehydrocyclization of Co-Porphyrin on Au(111)

Overview

Journal Molecules

Publisher MDPI

Specialty Biology

Date 2020 Aug 23

PMID 32824933

Citations 3

Authors

Cen Yin

Zhantao Peng

Dan Liu

Huanjun Song

Hao Zhu

Qiwei Chen

Kai Wu

Affiliations

Soon will be listed here.

Abstract

The on-surface C-H bond activation and coupling reaction is a powerful approach to constructing fine-tuned surface nanostructures. It is quite challenging to control its regioselectivity due to the inertness of the C-H bond involved. With scanning tunneling microscopy/spectroscopy and theoretical calculations, the C-H activation and sequential intramolecular dehydrocyclization of -tetra(p-methoxyphenyl)porphyrinatocobalt(II) was explored on Au(111), showing that the methoxy groups in the molecule could kinetically mediate the selectivity of the intramolecular reaction over its intermolecular coupling counterpart. The experimental results demonstrate that the introduced protecting group could help augment the selectivity of such on-surface reaction, which can be applied to the precise fabrication of functional surface nanostructures.

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