期刊
SMALL
卷 17, 期 20, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.202008036
关键词
density functional calculations; electronic properties; in situ synthesis; metal– organic coordination; scanning tunneling microscopy
类别
资金
- National Natural Science Foundation of China [21802072, 21875108]
- Fundamental Research Funds for the Central Universities [3091701134]
In this study, advanced fabrication of surface metal-organic complexes allows for the synthesis of distinct organic ligands with stereo-specific conformation. It was found that exo-bent ligands promote mono-iron chelated complexes with high spin Fe center, while endo-bent ligands lead to bi-iron chelated complexes with ferromagnetic properties.
Advanced fabrication of surface metal-organic complexes with specific coordination configuration and metal centers will facilitate to exploit novel nanomaterials with attractive electronic/magnetic properties. The precise on-surface synthesis provides an appealing strategy for in situ construction of complex organic ligands from simple precursors autonomously. In this paper, distinct organic ligands with stereo-specific conformation are separately synthesized through the well-known dehalogenative coupling. More interestingly, the exo-bent ligands promote the mono-iron chelated complexes with the Fe center significantly decoupled from the surface and of high spin, while the endo-bent ligands lead to bi-iron chelated ones instead with ferromagnetic properties.
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