Metalo Hydrogen-Bonded Organic Frameworks Constructed by Coordinated Chains for Magnetic and Proton-Conductive Bifunctionality

Dong, Jing1; Huang, Long1; Shi, Le2; Yang, Jiong3; Wan, Yi1; Shao, Dong1

2024-09-01

10.1021/acs.inorgchem.4c01847

INORGANIC CHEMISTRY   影响因子和分区

0020-1669

1520-510X

Metalo hydrogen-bonded organic frameworks (MHOFs) have received growing interest in designing crystalline functional materials. However, reports on bifunctional MHOFs showing magnetic and proton-conductive properties are extremely limited and their design is challenging. Herein, we investigated the magnetic and proton-conductive properties of two sulfonated CoHOF and MnHOF, {M(H2O)(2)(abs)(2)}(n) (M = Co2+ and Mn2+, Habs = 4-aminoazobenzene-4'-sulfonic anion), constructed by coordination chains. The supramolecular frameworks sustained by H bonds between -SO3- and coordinated water show directional ladder-type H bonds with hydrophilic nanochannels, leading to high proton conduction with exceptionally high conductivity around 10(-2) S cm(-1) at 100 degrees C under 97% relative humidity. In particular, the maximum sigma value of CoHOF, 2.11 x 10(-2) S cm(-1), recorded the highest value among the reported proton-conducting materials showing slow magnetic relaxation. Meanwhile, the molecular structure of organosulfonate enables the magnetic isolation of high-spin Co2+ and Mn2+ centers in the frameworks. Magnetic measurements indicated that the MHOFs show field-induced single-ion magnet (SIM) properties, making these compounds rare magnetic-proton-conductive MHOFs. The work provides not only two unique MHOFs with SIM behavior and high proton conduction performance but also avenues for designing stable bifunctional MHOFs via a coordination chain approach.

SCI

英语

其他

Natural Science Foundation of Hubei Province[2023AFB010] ; Huanggang Normal University["2042021033","202210204"]

Chemistry

Chemistry, Inorganic & Nuclear

WOS:001306526300001

AMER CHEMICAL SOC

Web of Science

1.Huanggang Normal Univ, Coll Chem & Chem Engn, Hubei Key Lab Proc & Applicat Catalyt Mat, Huanggang 438000, Peoples R China
2.Zhejiang Univ, Stoddart Inst Mol Sci, Dept Chem, State Key Lab Chem Engn, Hangzhou 310027, Peoples R China
3.Southern Univ Sci & Technol SUSTech, Dept Chem, Shenzhen 518055, Peoples R China

Dong, Jing,Huang, Long,Shi, Le,et al. Metalo Hydrogen-Bonded Organic Frameworks Constructed by Coordinated Chains for Magnetic and Proton-Conductive Bifunctionality[J]. INORGANIC CHEMISTRY,2024.

Dong, Jing,Huang, Long,Shi, Le,Yang, Jiong,Wan, Yi,&Shao, Dong.(2024).Metalo Hydrogen-Bonded Organic Frameworks Constructed by Coordinated Chains for Magnetic and Proton-Conductive Bifunctionality.INORGANIC CHEMISTRY.

Dong, Jing,et al."Metalo Hydrogen-Bonded Organic Frameworks Constructed by Coordinated Chains for Magnetic and Proton-Conductive Bifunctionality".INORGANIC CHEMISTRY (2024).