Single Crystals of Electrically Conductive Two-Dimensional Metal–Organic Frameworks: Structural and Electrical Transport Properties
Name
acscentsci.9b01006.pdf
Description
Published version
Size
4.77 MB
Format
Adobe PDF
Checksum (MD5)
e6fa84e63e23f26143da71d55db956b6
Author(s)
Day, Robert William
Bediako, D. Kwabena
Rezaee, Mehdi
Parent, Lucas R.
Skorupskii, Grigorii
Arguilla, Maxx Q
Hendon, Christopher H.
Stassen, Ivo
Gianneschi, Nathan C.
Kim, Philip
Date Issued
December 2019
Journal
ACS Central Science
Publisher
American Chemical Society (ACS)
Citation
Day, Robert William et al. "Single Crystals of Electrically Conductive Two-Dimensional Metal–Organic Frameworks: Structural and Electrical Transport Properties." ACS Central Science 5, 12 (December 2019): 1959–1964. © 2019 American Chemical Society
Version
Final published version
Abstract
Crystalline, electrically conductive, and intrinsically porous materials are rare. Layered two-dimensional (2D) metal-organic frameworks (MOFs) break this trend. They are porous crystals that exhibit high electrical conductivity and are novel platforms for studying fundamentals of electricity and magnetism in two dimensions. Despite demonstrated applications, electrical transport in these remains poorly understood because of a lack of single crystal studies. Here, studies of single crystals of two 2D MOFs, Ni3(HITP)2 and Cu3(HHTP)2, uncover critical insights into their structure and transport. Conductivity measurements down to 0.3 K suggest metallicity for mesoscopic single crystals of Ni3(HITP)2, which contrasts with apparent activated conductivity for polycrystalline films. Microscopy studies further reveal that these MOFs are not isostructural as previously reported. Notably, single rods exhibit conductivities up to 150 S/cm, which persist even after prolonged exposure to ambient conditions. These single crystal studies confirm that 2D MOFs hold promise as molecularly tunable platforms for fundamental science and applications where porosity and conductivity are critical.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1021/acscentsci.9b01006
