Publication
Article Metrics
Citations
Online attention
Locating Gases in Porous Materials: Cryogenic Loading of Fuel-Related Gases Into a Sc-based Metal-Organic Framework under Extreme Pressures
Authors:
Jorge
Sotelo
(EaStCHEM School of Chemistry, Joseph Black Building, West Mains Road, Edinburgh)
,
Christopher
Woodall
(University of Edinburgh)
,
Dave
Allan
(Diamond Light Source)
,
Eugene
Gregoryanz
(School of Physics and Centre for Science at Extreme Conditions, The University of Edinburgh)
,
Ross
Howie
(University of Edinburgh)
,
Konstantin
Kamenev
(University of Edinburgh)
,
Mike
Probert
(Newcastle University)
,
Paul
Wright
(University of St Andrews)
,
Stephen
Moggach
(The University of Edinburgh)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Angewandte Chemie
, VOL 127 (45)
, PAGES 13530 - 13534
State:
Published (Approved)
Published:
November 2015

Abstract: An alternative approach to loading metal organic frameworks with gas molecules at high (kbar) pressures is reported. The technique, which uses liquefied gases as pressure transmitting media within a diamond anvil cell along with a single-crystal of a porous metal–organic framework, is demonstrated to have considerable advantages over other gas-loading methods when investigating host–guest interactions. Specifically, loading the metal–organic framework Sc2BDC3 with liquefied CO2 at 2 kbar reveals the presence of three adsorption sites, one previously unreported, and resolves previous inconsistencies between structural data and adsorption isotherms. A further study with supercritical CH4 at 3–25 kbar demonstrates hyperfilling of the Sc2BDC3 and two high-pressure displacive and reversible phase transitions are induced as the filled MOF adapts to reduce the volume of the system.
Journal Keywords: Gastrennung; Hochdruckphasen; Metall-Organische Gerüstverbindungen; Röntgenkristallographie; Strukturaufklärung
Subject Areas:
Chemistry
Instruments:
I19-Small Molecule Single Crystal Diffraction