Temperature effects on the C–H symmetric stretching vibrational frequencies of guest hydrocarbon molecules in 5(12), 5(12)6(2) and 5(12)6(4) cages of sI and sII clathrate hydrates

C–H symmetric stretching vibrational frequencies of CH(4), C(2)H(4) and C(2)H(6) molecules encapsulated in 5(12), 5(12)6(2) and 5(12)6(4) cages of structures I (sI) and II (sII) clathrate hydrates measured by Raman spectroscopy in the temperature range of 93–183 K was analysed. The slopes of the sym...

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Autores principales: Fuseya, Go, Takeya, Satoshi, Hachikubo, Akihiro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9057130/
https://www.ncbi.nlm.nih.gov/pubmed/35521261
http://dx.doi.org/10.1039/d0ra06668k
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author Fuseya, Go
Takeya, Satoshi
Hachikubo, Akihiro
author_facet Fuseya, Go
Takeya, Satoshi
Hachikubo, Akihiro
author_sort Fuseya, Go
collection PubMed
description C–H symmetric stretching vibrational frequencies of CH(4), C(2)H(4) and C(2)H(6) molecules encapsulated in 5(12), 5(12)6(2) and 5(12)6(4) cages of structures I (sI) and II (sII) clathrate hydrates measured by Raman spectroscopy in the temperature range of 93–183 K was analysed. The slopes of the symmetric stretch vibrational frequencies under changing temperatures (Δv/ΔT) for CH(4), C(2)H(4) and C(2)H(6) molecules encapsulated in sII 5(12)6(4) cages were smaller than those for molecules in sI 5(12)6(2) cages, although sI 5(12)6(2) cages are smaller than sII 5(12)6(4) cages. We compared the results of Δv/ΔT in this study with the geometrical properties of each host water cage, and these comparisons suggest that the geometry of host water cages affects Δv/ΔT.
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spelling pubmed-90571302022-05-04 Temperature effects on the C–H symmetric stretching vibrational frequencies of guest hydrocarbon molecules in 5(12), 5(12)6(2) and 5(12)6(4) cages of sI and sII clathrate hydrates Fuseya, Go Takeya, Satoshi Hachikubo, Akihiro RSC Adv Chemistry C–H symmetric stretching vibrational frequencies of CH(4), C(2)H(4) and C(2)H(6) molecules encapsulated in 5(12), 5(12)6(2) and 5(12)6(4) cages of structures I (sI) and II (sII) clathrate hydrates measured by Raman spectroscopy in the temperature range of 93–183 K was analysed. The slopes of the symmetric stretch vibrational frequencies under changing temperatures (Δv/ΔT) for CH(4), C(2)H(4) and C(2)H(6) molecules encapsulated in sII 5(12)6(4) cages were smaller than those for molecules in sI 5(12)6(2) cages, although sI 5(12)6(2) cages are smaller than sII 5(12)6(4) cages. We compared the results of Δv/ΔT in this study with the geometrical properties of each host water cage, and these comparisons suggest that the geometry of host water cages affects Δv/ΔT. The Royal Society of Chemistry 2020-10-12 /pmc/articles/PMC9057130/ /pubmed/35521261 http://dx.doi.org/10.1039/d0ra06668k Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Fuseya, Go
Takeya, Satoshi
Hachikubo, Akihiro
Temperature effects on the C–H symmetric stretching vibrational frequencies of guest hydrocarbon molecules in 5(12), 5(12)6(2) and 5(12)6(4) cages of sI and sII clathrate hydrates
title Temperature effects on the C–H symmetric stretching vibrational frequencies of guest hydrocarbon molecules in 5(12), 5(12)6(2) and 5(12)6(4) cages of sI and sII clathrate hydrates
title_full Temperature effects on the C–H symmetric stretching vibrational frequencies of guest hydrocarbon molecules in 5(12), 5(12)6(2) and 5(12)6(4) cages of sI and sII clathrate hydrates
title_fullStr Temperature effects on the C–H symmetric stretching vibrational frequencies of guest hydrocarbon molecules in 5(12), 5(12)6(2) and 5(12)6(4) cages of sI and sII clathrate hydrates
title_full_unstemmed Temperature effects on the C–H symmetric stretching vibrational frequencies of guest hydrocarbon molecules in 5(12), 5(12)6(2) and 5(12)6(4) cages of sI and sII clathrate hydrates
title_short Temperature effects on the C–H symmetric stretching vibrational frequencies of guest hydrocarbon molecules in 5(12), 5(12)6(2) and 5(12)6(4) cages of sI and sII clathrate hydrates
title_sort temperature effects on the c–h symmetric stretching vibrational frequencies of guest hydrocarbon molecules in 5(12), 5(12)6(2) and 5(12)6(4) cages of si and sii clathrate hydrates
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9057130/
https://www.ncbi.nlm.nih.gov/pubmed/35521261
http://dx.doi.org/10.1039/d0ra06668k
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