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

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

doi:10.1016/j.cplett.2012.01.033

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

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

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15 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 language	English
Pages (from-to)	34-38
Number of pages	5
Journal	Chemical Physics Letters
Volume	528
DOIs	https://doi.org/10.1016/j.cplett.2012.01.033
Publication status	Published - 2012 Mar 1

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All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

Cite this

Lee, J. W., Choi, K. J., Lee, Y., & Yoon, J. H. (2012). Spectroscopic identification and conversion rate of gaseous guest-loaded hydroquinone clathrates. Chemical Physics Letters, 528, 34-38. https://doi.org/10.1016/j.cplett.2012.01.033

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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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N2 - 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.

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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10.1016/j.cplett.2012.01.033