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A coronene-based semiconducting two-dimensional metal-organic framework with ferromagnetic behavior

Renhao Dong⧫Department of Chemistry and Food Chemistry & Center for Advancing Electronics Dresden, Technische Universität Dresden, 01062, Dresden, GermanyZhitao ZhangDepartment of Chemistry and Food Chemistry & Center for Advancing Electronics Dresden, Technische Universität Dresden, 01062, Dresden, GermanyDiana TrancaDepartment of Chemistry and Food Chemistry & Center for Advancing Electronics Dresden, Technische Universität Dresden, 01062, Dresden, GermanyShengqiang ZhouHelmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstr. 400, 01328, Dresden, GermanyMingchao WangDepartment of Chemistry and Food Chemistry & Center for Advancing Electronics Dresden, Technische Universität Dresden, 01062, Dresden, GermanyPéter AdlerMax Planck Institute for Chemical Physics of Solids, 01187, Dresden, GermanyZhongquan LiaoFraunhofer Institute for Ceramic Technologies and Systems (IKTS), 01109, Dresden, GermanyFeng LiuState Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, ChinaYan SunMax Planck Institute for Chemical Physics of Solids, 01187, Dresden, GermanyWujun ShiMax Planck Institute for Chemical Physics of Solids, 01187, Dresden, GermanyZhe ZhangDepartment of Chemistry and Food Chemistry & Center for Advancing Electronics Dresden, Technische Universität Dresden, 01062, Dresden, GermanyEhrenfried ZschechFraunhofer Institute for Ceramic Technologies and Systems (IKTS), 01109, Dresden, GermanyStefan C. B. MannsfeldDepartment of Chemistry and Food Chemistry & Center for Advancing Electronics Dresden, Technische Universität Dresden, 01062, Dresden, GermanyClaudia FelserMax Planck Institute for Chemical Physics of Solids, 01187, Dresden, GermanyXinliang FengDepartment of Chemistry and Food Chemistry & Center for Advancing Electronics Dresden, Technische Universität Dresden, 01062, Dresden, Germany. [email protected]

2018en

ABI

Annotatsiya

Abstract Metal–organic frameworks (MOFs) have so far been highlighted for their potential roles in catalysis, gas storage and separation. However, the realization of high electrical conductivity (>10 −3 S cm −1 ) and magnetic ordering in MOFs will afford them new functions for spintronics, which remains relatively unexplored. Here, we demonstrate the synthesis of a two-dimensional MOF by solvothermal methods using perthiolated coronene as a ligand and planar iron-bis(dithiolene) as linkages enabling a full π-d conjugation. This 2D MOF exhibits a high electrical conductivity of ~10 S cm −1 at 300 K, which decreases upon cooling, suggesting a typical semiconductor nature. Magnetization and 57 Fe Mössbauer experiments reveal the evolution of ferromagnetism within nanoscale magnetic clusters below 20 K, thus evidencing exchange interactions between the intermediate spin S = 3/2 iron(III) centers via the delocalized π electrons. Our results illustrate that conjugated 2D MOFs have potential as ferromagnetic semiconductors for application in spintronics.

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DOI: 10.1038/s41467-018-05141-4

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