Volume 63, Issue 24 e202404290
Research Article

Gas-Induced Electrical and Magnetic Modulation of Two-Dimensional Conductive Metal–Organic Framework

Dr. Zheng Meng

Corresponding Author

Dr. Zheng Meng

Department of Chemistry, Dartmouth College, Burke Laboratory, Hanover, NH 03755 USA

School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, 230026 P. R. China

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Dr. Robert M. Stolz

Dr. Robert M. Stolz

Department of Chemistry, Dartmouth College, Burke Laboratory, Hanover, NH 03755 USA

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Dr. Lygia Silva De Moraes

Dr. Lygia Silva De Moraes

Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, 91125 USA

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Christopher G. Jones

Christopher G. Jones

Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, 91125 USA

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Aileen M. Eagleton

Aileen M. Eagleton

Department of Chemistry, Dartmouth College, Burke Laboratory, Hanover, NH 03755 USA

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Prof. Dr. Hosea M. Nelson

Corresponding Author

Prof. Dr. Hosea M. Nelson

Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, 91125 USA

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Prof. Dr. Katherine A. Mirica

Corresponding Author

Prof. Dr. Katherine A. Mirica

Department of Chemistry, Dartmouth College, Burke Laboratory, Hanover, NH 03755 USA

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Dedicated to Prof. George Whitesides on the occasion of his 85th birthday.
First published: 08 April 2024
Citations: 5

Graphical Abstract

Exposure to gaseous molecules can induce characteristic electrical and magnetic property changes of a semiconductive metal–organic framework (MOF). The underlying interaction mechanism responsible for the electrical and magnetic modulation is found related to the intrinsic physical and chemical properties of the participating molecules which cause specific electronic and structural changes of the MOF.

Abstract

Controlled modulation of electronic and magnetic properties in stimuli-responsive materials provides valuable insights for the design of magnetoelectric or multiferroic devices. This paper demonstrates the modulation of electrical and magnetic properties of a semiconductive, paramagnetic metal−organic framework (MOF) Cu3(C6O6)2 with small gaseous molecules, NH3, H2S, and NO. This study merges chemiresistive and magnetic tests to reveal that the MOF undergoes simultaneous changes in electrical conductance and magnetization that are uniquely modulated by each gas. The features of response, including direction, magnitude, and kinetics, are modulated by the physicochemical properties of the gaseous molecules. This study advances the design of multifunctional materials capable of undergoing simultaneous changes in electrical and magnetic properties in response to chemical stimuli.

Conflict of interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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