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High temperature expulsion of thermolabile groups for pore-space expansion in metal-organic frameworks

Journal Article


Abstract


  • Direct radiative heating at 200 °C quantitatively converts sulfoxide-tags to desirable vinyl groups on a porous zinc(ii) metal-organic framework analogue of IRMOF-9. The transformation results in an expansion of the pore volume of the framework and a higher surface area. The framework topology and crystallinity are preserved during thermolysis, as established by powder X-ray diffraction, thermal analysis and computational studies. Importantly, the volatile by-product is chemically benign and escapes without damaging the framework. In this way, the post-synthetic thermolysis yields a material with identical properties to that prepared by direct synthesis. This work expands the repertoire of post-synthetic thermochemistry for MOFs and demonstrates that high-temperature processes can be compatible with the retention of important framework properties.

UOW Authors


  •   Bryant, Macguire (external author)
  •   Ablott, Timothy (external author)
  •   Telfer, Shane (external author)
  •   Liu, Lujia (external author)
  •   Richardson, Christopher

Publication Date


  • 2019

Citation


  • Bryant, M. R., Ablott, T. A., Telfer, S. G., Liu, L. & Richardson, C. (2019). High temperature expulsion of thermolabile groups for pore-space expansion in metal-organic frameworks. CrystEngComm, 21 (1), 60-64.

Scopus Eid


  • 2-s2.0-85058858423

Number Of Pages


  • 4

Start Page


  • 60

End Page


  • 64

Volume


  • 21

Issue


  • 1

Place Of Publication


  • United Kingdom

Abstract


  • Direct radiative heating at 200 °C quantitatively converts sulfoxide-tags to desirable vinyl groups on a porous zinc(ii) metal-organic framework analogue of IRMOF-9. The transformation results in an expansion of the pore volume of the framework and a higher surface area. The framework topology and crystallinity are preserved during thermolysis, as established by powder X-ray diffraction, thermal analysis and computational studies. Importantly, the volatile by-product is chemically benign and escapes without damaging the framework. In this way, the post-synthetic thermolysis yields a material with identical properties to that prepared by direct synthesis. This work expands the repertoire of post-synthetic thermochemistry for MOFs and demonstrates that high-temperature processes can be compatible with the retention of important framework properties.

UOW Authors


  •   Bryant, Macguire (external author)
  •   Ablott, Timothy (external author)
  •   Telfer, Shane (external author)
  •   Liu, Lujia (external author)
  •   Richardson, Christopher

Publication Date


  • 2019

Citation


  • Bryant, M. R., Ablott, T. A., Telfer, S. G., Liu, L. & Richardson, C. (2019). High temperature expulsion of thermolabile groups for pore-space expansion in metal-organic frameworks. CrystEngComm, 21 (1), 60-64.

Scopus Eid


  • 2-s2.0-85058858423

Number Of Pages


  • 4

Start Page


  • 60

End Page


  • 64

Volume


  • 21

Issue


  • 1

Place Of Publication


  • United Kingdom