Chemical structure modulation in conductive MOFs by adjusting the oxidation state of the ligand and introducing alkali metal ions

Xiaoyu Wu; Haowei Wu; Sicheng Wu; Yimeng Sun; Jia Zhu; Ye Zou; Wei Xu; Daoben Zhu

doi:10.1039/d1cc06407j

Chemical structure modulation in conductive MOFs by adjusting the oxidation state of the ligand and introducing alkali metal ions

Chem Commun (Camb). 2022 Feb 22;58(16):2702-2705. doi: 10.1039/d1cc06407j.

Authors

Xiaoyu Wu^{1

2}, Haowei Wu^{3

4}, Sicheng Wu^{1

2}, Yimeng Sun¹, Jia Zhu⁴, Ye Zou¹, Wei Xu^{1

2}, Daoben Zhu^{1

2}

Affiliations

¹ Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China.
² University of Chinese Academy of Science, Beijing 100049, China.
³ Key Laboratory of Theoretical and Computational Photochemistry Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China.
⁴ Laboratory of Theoretical and Computational Nanoscience, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, 100190, Beijing, China.

PMID: 35112121
DOI: 10.1039/d1cc06407j

Abstract

The metal-organic frameworks (MOFs) have attracted more and more attention and some MOFs have shown advanced electrical conductivity. Based on previous work about MnTHBQ (THBQ = tetrahydroxy-1,4-benzoquinone), we present two strategies, variation of the ligands' oxidation states and introducing alkali ions (Rb⁺ or Cs⁺), to modulate the structures of MOFs and obtained three new MOFs: MnHHB (HHB = hexahydroxybenzene), MnRbTHBQ and MnCsTHBQ. Different from the cubic lattices in the group of Pm3̄ of MnTHBQ, they exhibit hexagonal unit cells in the group of P6/mmm. This work highlights the importance of the oxidation state of the ligand in constructing the out-of-plane charge transport pathway and indicates that employing a redox-active ligand or adding alkali metal ions could be an optional strategy for manipulating the characteristics of MOFs.