Mechanism of preferential adsorption of SO2 into two microporous paddle wheel frameworks M(bdc)(ted)0.5

Kui Tan, Pieremanuele Canepa, Qihan Gong, Jian Liu, Daniel H. Johnson, Allison Dyevoich, Praveen K. Thallapally, Timo Thonhauser, Jing Li, Yves J. Chabal

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

The selective adsorption of a corrosive gas, SO2, into two microporous pillared paddle-wheel frameworks M(bdc)(ted)0.5 [M = Ni, Zn; bdc =1,4-benzenedicarboxylate; ted = triethylenediamine] is studied by volumetric adsorption measurements and a combination of in situ infrared spectroscopy and ab initio density functional theory (DFT) calculations. The uptake of SO2 in M(bdc)(ted)0.5 at room temperature is quite significant, 9.97 mol/kg at 1.13 bar. The major adsorbed SO2 molecules contributing to the isotherm measurements are characterized by stretching bands at 1326 and 1144 cm-1. Theoretical calculations including van der Waals interactions (based on vdW-DF) suggest that two adsorption configurations are possible for these SO2 molecules. One geometry involves an SO2 molecule bonded through its sulfur atom to the oxygen atom of the paddle-wheel building unit and its two oxygen atoms to the C-H groups of the organic linkers by formation of hydrogen bonds. Such a configuration results in a distortion of the benzene rings, which is consistent with the experimentally observed shift of the ring deformation mode. In the other geometry, SO2 establishes hydrogen bonding with -CH2 group of the ted linker through its two oxygen atoms simultaneously. The vdW-DF-simulated frequency shifts of the SO2 stretching bands in these two configurations are similar and in good agreement with spectroscopically measured values of physisorbed SO2. In addition, the IR spectra reveal the presence of another minor species, characterized by stretching modes at 1242 and 1105 cm-1 and causing significant perturbations of MOFs vibrational modes (CHx and carboxylate groups). This species is more strongly bound, requiring a higher temperature (∼150 C) to remove it than for the main physisorbed species. The adsorption configurations of SO2 into M(bdc)(ted)0.5 derived by infrared spectroscopy and vdW-DF calculations provide the initial understanding to develop microporous metal organic frameworks materials based on paddlewheel secondary-building units for SO2 removal in industrial processes.

Original languageEnglish
Pages (from-to)4653-4662
Number of pages10
JournalChemistry of Materials
Volume25
Issue number23
DOIs
Publication statusPublished - Dec 10 2013

Fingerprint

Wheels
Stretching
Adsorption
Atoms
Oxygen
Molecules
Infrared spectroscopy
Hydrogen bonds
Caustics
Geometry
Benzene
Sulfur
Density functional theory
Isotherms
Gases
Metals
Temperature

Keywords

  • adsorption isotherm
  • DFT calculations
  • in situ infrared spectroscopy
  • metal organic frameworks
  • paddlewheel
  • sulfur dioxide

ASJC Scopus subject areas

  • Materials Chemistry
  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Tan, K., Canepa, P., Gong, Q., Liu, J., Johnson, D. H., Dyevoich, A., ... Chabal, Y. J. (2013). Mechanism of preferential adsorption of SO2 into two microporous paddle wheel frameworks M(bdc)(ted)0.5. Chemistry of Materials, 25(23), 4653-4662. https://doi.org/10.1021/cm401270b

Mechanism of preferential adsorption of SO2 into two microporous paddle wheel frameworks M(bdc)(ted)0.5. / Tan, Kui; Canepa, Pieremanuele; Gong, Qihan; Liu, Jian; Johnson, Daniel H.; Dyevoich, Allison; Thallapally, Praveen K.; Thonhauser, Timo; Li, Jing; Chabal, Yves J.

In: Chemistry of Materials, Vol. 25, No. 23, 10.12.2013, p. 4653-4662.

Research output: Contribution to journalArticle

Tan, K, Canepa, P, Gong, Q, Liu, J, Johnson, DH, Dyevoich, A, Thallapally, PK, Thonhauser, T, Li, J & Chabal, YJ 2013, 'Mechanism of preferential adsorption of SO2 into two microporous paddle wheel frameworks M(bdc)(ted)0.5', Chemistry of Materials, vol. 25, no. 23, pp. 4653-4662. https://doi.org/10.1021/cm401270b
Tan, Kui ; Canepa, Pieremanuele ; Gong, Qihan ; Liu, Jian ; Johnson, Daniel H. ; Dyevoich, Allison ; Thallapally, Praveen K. ; Thonhauser, Timo ; Li, Jing ; Chabal, Yves J. / Mechanism of preferential adsorption of SO2 into two microporous paddle wheel frameworks M(bdc)(ted)0.5. In: Chemistry of Materials. 2013 ; Vol. 25, No. 23. pp. 4653-4662.
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AU - Liu, Jian

AU - Johnson, Daniel H.

AU - Dyevoich, Allison

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AU - Chabal, Yves J.

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N2 - The selective adsorption of a corrosive gas, SO2, into two microporous pillared paddle-wheel frameworks M(bdc)(ted)0.5 [M = Ni, Zn; bdc =1,4-benzenedicarboxylate; ted = triethylenediamine] is studied by volumetric adsorption measurements and a combination of in situ infrared spectroscopy and ab initio density functional theory (DFT) calculations. The uptake of SO2 in M(bdc)(ted)0.5 at room temperature is quite significant, 9.97 mol/kg at 1.13 bar. The major adsorbed SO2 molecules contributing to the isotherm measurements are characterized by stretching bands at 1326 and 1144 cm-1. Theoretical calculations including van der Waals interactions (based on vdW-DF) suggest that two adsorption configurations are possible for these SO2 molecules. One geometry involves an SO2 molecule bonded through its sulfur atom to the oxygen atom of the paddle-wheel building unit and its two oxygen atoms to the C-H groups of the organic linkers by formation of hydrogen bonds. Such a configuration results in a distortion of the benzene rings, which is consistent with the experimentally observed shift of the ring deformation mode. In the other geometry, SO2 establishes hydrogen bonding with -CH2 group of the ted linker through its two oxygen atoms simultaneously. The vdW-DF-simulated frequency shifts of the SO2 stretching bands in these two configurations are similar and in good agreement with spectroscopically measured values of physisorbed SO2. In addition, the IR spectra reveal the presence of another minor species, characterized by stretching modes at 1242 and 1105 cm-1 and causing significant perturbations of MOFs vibrational modes (CHx and carboxylate groups). This species is more strongly bound, requiring a higher temperature (∼150 C) to remove it than for the main physisorbed species. The adsorption configurations of SO2 into M(bdc)(ted)0.5 derived by infrared spectroscopy and vdW-DF calculations provide the initial understanding to develop microporous metal organic frameworks materials based on paddlewheel secondary-building units for SO2 removal in industrial processes.

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