title: Melt-Quenched Glasses of Metal-Organic Frameworks.
abstract: Crystalline solids dominate the field of metal-organic frameworks (MOFs), with access to the liquid and glass states of matter usually prohibited by relatively low temperatures of thermal decomposition. In this work, we give due consideration to framework chemistry and topology to expand the phenomenon of the melting of 3D MOFs, linking crystal chemistry to framework melting temperature and kinetic fragility of the glass-forming liquids. Here we show that melting temperatures can be lowered by altering the chemistry of the crystalline MOF state, which provides a route to facilitate the melting of other MOFs. The glasses formed upon vitrification are chemically and structurally distinct from the three other existing categories of melt-quenched glasses (inorganic nonmetallic, organic, and metallic), and retain the basic metal-ligand connectivity of crystalline MOFs, which connects their mechanical properties to their starting chemical composition. The transfer of functionality from crystal to glass points toward new routes to tunable, functional hybrid glasses.
authors.affiliation: Department of Materials Science and Metallurgy, University of Cambridge , 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom.
authors.forename: Thomas D
authors.initials: TD
authors.lastname: Bennett
authors.affiliation: State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology , Wuhan 430070, China.|Department of Chemistry and Bioscience, Aalborg University , DK-9220 Aalborg, Denmark.
authors.forename: Yuanzheng
authors.initials: Y
authors.lastname: Yue
authors.affiliation: Department of Chemistry and International Institute for Nanotechnology, Northwestern University , Evanston, Illinois 60208, United States.
authors.forename: Peng
authors.initials: P
authors.lastname: Li
authors.affiliation: State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology , Wuhan 430070, China.
authors.forename: Ang
authors.initials: A
authors.lastname: Qiao
authors.affiliation: State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology , Wuhan 430070, China.
authors.forename: Haizheng
authors.initials: H
authors.lastname: Tao
authors.affiliation: Department of Materials Science and Metallurgy, University of Cambridge , 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom.|State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology , Wuhan 430070, China.|Institute of Mathematics, Physics and Computer Science, Aberystwyth University , Aberystwyth SY23 3BZ, United Kingdom.
authors.forename: Neville G
authors.initials: NG
authors.lastname: Greaves
authors.affiliation: Department of Materials Science and Metallurgy, University of Cambridge , 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom.
authors.forename: Tom
authors.initials: T
authors.lastname: Richards
authors.affiliation: Department of Earth Sciences, University of Cambridge , Downing Street, Cambridge CB2 3EQ, United Kingdom.
authors.forename: Giulio I
authors.initials: GI
authors.lastname: Lampronti
authors.affiliation: Department of Earth Sciences, University of Cambridge , Downing Street, Cambridge CB2 3EQ, United Kingdom.
authors.forename: Simon A T
authors.initials: SA
authors.lastname: Redfern
authors.affiliation: Department of Chemistry and Stephenson Institute for Renewable Energy, University of Liverpool , Crown Street, Liverpool L69 7ZD, United Kingdom.
authors.forename: Frédéric
authors.initials: F
authors.lastname: Blanc
authors.affiliation: Department of Chemistry and International Institute for Nanotechnology, Northwestern University , Evanston, Illinois 60208, United States.
authors.forename: Omar K
authors.initials: OK
authors.lastname: Farha
authors.affiliation: Department of Chemistry and International Institute for Nanotechnology, Northwestern University , Evanston, Illinois 60208, United States.
authors.forename: Joseph T
authors.initials: JT
authors.lastname: Hupp
authors.affiliation: Department of Materials Science and Metallurgy, University of Cambridge , 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom.
authors.forename: Anthony K
authors.initials: AK
authors.lastname: Cheetham
authors.affiliation: ISIS Facility, Rutherford Appleton Laboratory, Harwell Campus , Didcot, Oxon OX11 0QX, United Kingdom.
authors.forename: David A
authors.initials: DA
authors.lastname: Keen