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This content will become publicly available on October 9, 2018

Title: Liquid metal–organic frameworks

Metal–organic frameworks (MOFs) are a family of chemically diverse materials, with applications in a wide range of fields, covering engineering, physics, chemistry, biology and medicine. Until recently, research has focused almost entirely on crystalline structures, yet now a clear trend is emerging, shifting the emphasis onto disordered states, including ‘defective by design’ crystals, as well as amorphous phases such as glasses and gels. Here we introduce a strongly associated MOF liquid, obtained by melting a zeolitic imidazolate framework. We combine in situ variable temperature X-ray, ex situ neutron pair distribution function experiments, and first-principles molecular dynamics simulations to study the melting phenomenon and the nature of the liquid obtained. We demonstrate from structural, dynamical, and thermodynamical information that the chemical configuration, coordinative bonding, and porosity of the parent crystalline framework survive upon formation of the MOF liquid.
Authors:
ORCiD logo [1] ;  [2] ;  [3] ; ORCiD logo [3] ; ORCiD logo [4] ; ORCiD logo [5] ; ORCiD logo [6]
  1. PSL Research Univ., Paris (France). Inst. de Recherche de Chimie Paris; Air Liquide, Saclay, Jouy-en-Josas, Paris (France). Centre de Recherche Paris
  2. Air Liquide, Saclay, Jouy-en-Josas, Paris (France). Centre de Recherche Paris
  3. Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
  4. Science and Technology Facilities Council (STFC), Oxford (United Kingdom). Rutherford Appleton Lab., ISIS Neutron Source
  5. Univ. of Cambridge (United Kingdom). Dept. of Materials Science and Metallurgy
  6. PSL Research Univ., Paris (France). Inst. de Recherche de Chimie Paris
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Nature Materials
Additional Journal Information:
Journal Volume: 16; Journal Issue: 11; Journal ID: ISSN 1476-1122
Publisher:
Nature Publishing Group
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
United Kingdom Science and Technology Facilities Council; USDOE Office of Science - Office of Basic Energy Sciences - Scientific User Facilities Division
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
OSTI Identifier:
1415474