Single crystal X-ray diffraction studies of carbon dioxide and fuel-related gases adsorbed on the small pore scandium terephthalate metal organic framework, Sc 2(O 2CC 6H 4CO 2) 3

Miller, S.R.;Wright, P.A.;Devic, T.;Serre, C.;Filinchuk, Yaroslav;et.al.
(2009) Langmuir : the A C S journal of surfaces and colloids — Vol. 25, n° 6, p. 3618-3626 (2009)

Files

No attached file found for this publication.

Details

Authors
  • Miller, S.R.
    Author
  • Wright, P.A.
    Author
  • Devic, T.
    Author
  • Serre, C.
    Author
  • Filinchuk, YaroslavUCLouvain
    Author
Show more
Abstract
The adsorption behavior of the microporous scandium terephthalate Sc 2(O 2CC 6H 4CO 2) 3 for small fuel-related molecules has been measured. The structure shows an adsorption capacity for N 2 and CO 2 of 6.5 mmol g -1 and is able to take up straight chain hydrocarbons. The mechanism of adsorption of CO 2, CH 4, and C 2H 6 has been determined by single crystal synchrotron X-ray diffraction at ̃230 K. Adsorption of CO 2 at 235 K and 1 bar pressure and H 2 at 80 K and 0.25 bar results in each case in a symmetry change from orthorhombic Fddd to monoclinic C2/c through tilts in the terephthalate linkers. CO 2 molecules take up different sites in the two symmetrically different channels that result from this symmetry change. The structure remains orthorhombic in 9 bar of CH 4 and 5 bar of C 2H 6, and the adsorption sites are located. CH 4 and C 2H 6 are observed to adopt sites within the channels, and C 2H 6 is also observed to adopt adsorption sites between phenyl groups in the channel walls, suggesting that the structure is sufficiently flexible to allow diffusion of small molecules between adjacent channels. © 2009 American Chemical Society.
Affiliations
  • ESRF, Grenoble (France)Chimie

Citations

  • APA
  • Chicago
  • FWB

Miller, S. R., Wright, P. A., Devic, T., Serre, C., Férey, G., Llewellyn, P. L., Denoyel, R., Gaberova, L., & Filinchuk, Y. (2009). Single crystal X-ray diffraction studies of carbon dioxide and fuel-related gases adsorbed on the small pore scandium terephthalate metal organic framework, Sc 2(O 2CC 6H 4CO 2) 3. Langmuir : the A C S journal of surfaces and colloids, 25(6), 3618-3626. https://doi.org/10.1021/la803788u (Original work published 2009)