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Lattice response of the porous coordination framework Zn(hba) to guest adsorption

Published online by Cambridge University Press:  02 August 2017

Josie E. Auckett ,
A. David Dharma ,
Marina P. Cagnes ,
Tamim A. Darwish ,
Brendan F. Abrahams ,
Ravichandar Babarao ,
Timothy A. Hudson ,
Richard Robson ,
Keith F. White  and
Vanessa K. Peterson
Josie E. Auckett
Affiliation:
Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, NSW 2234, Australia
A. David Dharma
Affiliation:
School of Chemistry, University of Melbourne, VIC 3010, Australia
Marina P. Cagnes
Affiliation:
National Deuteration Facility, Australian Nuclear Science and Technology Organisation, NSW 2234, Australia
Tamim A. Darwish
Affiliation:
National Deuteration Facility, Australian Nuclear Science and Technology Organisation, NSW 2234, Australia
Brendan F. Abrahams
Affiliation:
School of Chemistry, University of Melbourne, VIC 3010, Australia
Ravichandar Babarao
Affiliation:
School of Science, RMIT University, VIC 3000, Australia
Timothy A. Hudson
Affiliation:
School of Chemistry, University of Melbourne, VIC 3010, Australia
Richard Robson
Affiliation:
School of Chemistry, University of Melbourne, VIC 3010, Australia
Keith F. White
Affiliation:
School of Chemistry, University of Melbourne, VIC 3010, Australia
Vanessa K. Peterson*
Affiliation:
Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, NSW 2234, Australia
*
a) Author to whom correspondence should be addressed. Electronic mail: vanessa.peterson@ansto.gov.au
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Abstract

Analysis of in situ neutron powder diffraction data collected for the porous framework material Zn(hba) during gas adsorption reveals a two-stage response of the host lattice to increasing CO2 guest concentration, suggesting progressive occupation of multiple CO2 adsorption sites with different binding strengths. The response of the lattice to moderate CH4 guest concentrations is virtually indistinguishable from the response to CO2, demonstrating that the influence of host–guest interactions on the Zn(hba) framework is defined more strongly by the concentration than by the identity of the guests.

Keywords

gas sorptionmetal–organic frameworkneutron powder diffraction

Information

Type
Technical Articles
Information
Powder Diffraction , Volume 32 , Supplement S2 , December 2017 , pp. S49 - S53
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Copyright
Copyright © International Centre for Diffraction Data 2017 

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