Gasâ€Induced Electrical and Magnetic Modulation of Twoâ€Dimensional Conductive Metal–Organic Framework

• Published in: Angewandte Chemie International Edition
• Main Authors: Meng, Zheng, Stolz, Robert M., Silva De Moraes, Lygia, Jones, Christopher G., Eagleton, Aileen M., Nelson, Hosea M., Mirica, Katherine A.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2024
• Subjects: Arctic; Dreyfus
• Online Access: https://doi.org/10.1002/anie.202404290

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)2with 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. © 2024 Wiley-VCH. K.A.M. and Z. M. acknowledge support from National Science Foundation EPSCoR award (#1757371), Cottrell Scholar Award (#26019) from the Research Corporation for Science Advancement, NSF CAREER Award (#1945218), Maximizing Investigators′ Research Award from the National Institutes of Health (R35GM138318), and Camille Dreyfus Teacher-Scholar Award. K.A.M. and Z. M. also acknowledge the partial support under PE 0603734A, “Energy and Technology Research in Cold and Arctic Regions,” Task 2 under Contract W913E519C0008 and under PE 0633119, and under Contract W913E520C0010, both managed by the US Army Engineer Research and Development Center (ERDC). H.M.N. would like to acknowledge the Packard Foundation for generous support. C.G.J. would like to acknowledge the National Science Foundation Graduate Research Fellowship Program (DGE-1650604) for funding. This work made use of a Quantum Design MPMS-3 supported by NSF (DMR-1920086) and the Cornell Center for Materials Research Facilities which are supported by the National Science Foundation under Award Number DMR-1719875. The authors thank the University Instrumentation Center ...