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Ligand Non‐innocence and Single Molecular Spintronic Properties of Ag II Dibenzocorrole Radical on Ag(111)
Author(s) -
Xu Jialiang,
Zhu Li,
Gao Hu,
Li Chenhong,
Zhu MengJiao,
Jia ZhenYu,
Zhu XinYang,
Zhao Yue,
Li ShaoChun,
Wu Fan,
Shen Zhen
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202016674
Subject(s) - corrole , ligand (biochemistry) , crystallography , spintronics , chemistry , molecule , ring (chemistry) , single crystal , photochemistry , materials science , nanotechnology , physics , ferromagnetism , condensed matter physics , biochemistry , receptor , organic chemistry
A facile method for the quantitative preparation of silver dibenzo‐fused corrole Ag‐1 is described. In contrast to the saddle conformation resolved by single‐crystal X‐ray analysis for Ag‐1, it adopts an unprecedented domed geometry, with up and down orientations, when adsorbed on an Ag(111) surface. Sharp Kondo resonances near Fermi level, both at the corrole ligand and the silver center were observed by cryogenic STM, with relatively high Kondo temperature (172 K), providing evidence for a non‐innocent Ag II ‐corrole .2− species. Further investigation validates that benzene ring fusion and molecule‐substrate interactions play pivotal roles in enhancing Ag(4d(x 2 −y 2 ))–corrole (π) orbital interactions, thereby stabilizing the open‐shell singlet Ag II ‐corrole .2− on Ag(111) surface. Moreover, this strategy used for constructing metal‐free benzene‐ring fused corrole ligand gives rise to inspiration of designing novel metal–corrole compound for multichannel molecular spintronics devices.