Spectroscopic identification and conversion rate of gaseous guest-loaded hydroquinone clathrates

Jong Won Lee, Ki Jong Choi, Yongjae Lee, Ji Ho Yoon

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The formation of hydroquinone clathrates with CO 2, CH 4, N 2, and H 2 was investigated using X-ray diffraction, Raman spectroscopy, and solid-state 13C NMR spectroscopy. Of the hydroquinones prepared at 5.0 MPa, the CH 4- and CO 2-loaded hydroquinones show complete conversion to β-form hydroquinone clathrates while the N 2-loaded hydroquinone shows only partial conversion; there is no indication of the formation of hydroquinone clathrate with H 2. The CO 2-loaded hydroquinone is fully converted to the β-form hydroquinone clathrate even at 1.0 MPa. Solid-state 13C NMR measurements of the hydroquinone clathrate samples prepared at different pressures reveal that the conversion rate for the formation of clathrate compounds from CH 4 and N 2 decreases with decreasing pressure.

Original languageEnglish
Pages (from-to)34-38
Number of pages5
JournalChemical Physics Letters
Volume528
DOIs
Publication statusPublished - 2012 Mar 1

Fingerprint

clathrates
Carbon Monoxide
Hydroquinones
methylidyne
solid state
nuclear magnetic resonance
hydroquinone
indication
Nuclear magnetic resonance spectroscopy
Raman spectroscopy
Nuclear magnetic resonance
X ray diffraction
diffraction
spectroscopy
x rays

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

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abstract = "The formation of hydroquinone clathrates with CO 2, CH 4, N 2, and H 2 was investigated using X-ray diffraction, Raman spectroscopy, and solid-state 13C NMR spectroscopy. Of the hydroquinones prepared at 5.0 MPa, the CH 4- and CO 2-loaded hydroquinones show complete conversion to β-form hydroquinone clathrates while the N 2-loaded hydroquinone shows only partial conversion; there is no indication of the formation of hydroquinone clathrate with H 2. The CO 2-loaded hydroquinone is fully converted to the β-form hydroquinone clathrate even at 1.0 MPa. Solid-state 13C NMR measurements of the hydroquinone clathrate samples prepared at different pressures reveal that the conversion rate for the formation of clathrate compounds from CH 4 and N 2 decreases with decreasing pressure.",
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Spectroscopic identification and conversion rate of gaseous guest-loaded hydroquinone clathrates. / Lee, Jong Won; Choi, Ki Jong; Lee, Yongjae; Yoon, Ji Ho.

In: Chemical Physics Letters, Vol. 528, 01.03.2012, p. 34-38.

Research output: Contribution to journalArticle

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AB - The formation of hydroquinone clathrates with CO 2, CH 4, N 2, and H 2 was investigated using X-ray diffraction, Raman spectroscopy, and solid-state 13C NMR spectroscopy. Of the hydroquinones prepared at 5.0 MPa, the CH 4- and CO 2-loaded hydroquinones show complete conversion to β-form hydroquinone clathrates while the N 2-loaded hydroquinone shows only partial conversion; there is no indication of the formation of hydroquinone clathrate with H 2. The CO 2-loaded hydroquinone is fully converted to the β-form hydroquinone clathrate even at 1.0 MPa. Solid-state 13C NMR measurements of the hydroquinone clathrate samples prepared at different pressures reveal that the conversion rate for the formation of clathrate compounds from CH 4 and N 2 decreases with decreasing pressure.

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