抄録
In this work we present a study on the association of n-hexanol in cyclohexane using NMR and NIR spectroscopies. Abrupt changes on spectroscopic responses have been observed at low molar fractions of n-hexanol, which are related to hydrogen bond network formation that includes trace water. Molecular interactions are found to be dominated by dispersion forces, hydrogen bonding, and dipolar interactions, to different extents at different n-hexanol composition ranges. 1D, DOSY, and T1and T2relaxation time analyses by 1H-NMR allow understanding the dynamics of the mixtures. NIR allows verifying the formation of n-hexanol polymeric species. In addition, an n-hexanol/cyclohexane mixture with an alcohol molar fraction of 0.177 has been titrated with water, revealing the formation of a microemulsion containing water droplets that evolves to a bicontinuous microemulsion with increasing water content. Stable boundary water is detected at the microemulsion interface.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 301-308 |
| ページ数 | 8 |
| ジャーナル | Journal of Molecular Liquids |
| 巻 | 199 |
| DOI | |
| 出版物ステータス | Published - 2014 |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Spectroscopy
- Condensed Matter Physics
- Atomic and Molecular Physics, and Optics
- Electronic, Optical and Magnetic Materials
- Materials Chemistry
これを引用
N-Hexanol association in cyclohexane studied by NMR and NIR spectroscopies. / Flores, Mario E.; Shibue, Toshimichi; Sugimura, Natsuhiko; Nishide, Hiroyuki; Martínez, Francisco; Olea, Andrés F.; Moreno-Villoslada, Ignacio.
：: Journal of Molecular Liquids, 巻 199, 2014, p. 301-308.研究成果: Article
}
TY - JOUR
T1 - N-Hexanol association in cyclohexane studied by NMR and NIR spectroscopies
AU - Flores, Mario E.
AU - Shibue, Toshimichi
AU - Sugimura, Natsuhiko
AU - Nishide, Hiroyuki
AU - Martínez, Francisco
AU - Olea, Andrés F.
AU - Moreno-Villoslada, Ignacio
PY - 2014
Y1 - 2014
N2 - In this work we present a study on the association of n-hexanol in cyclohexane using NMR and NIR spectroscopies. Abrupt changes on spectroscopic responses have been observed at low molar fractions of n-hexanol, which are related to hydrogen bond network formation that includes trace water. Molecular interactions are found to be dominated by dispersion forces, hydrogen bonding, and dipolar interactions, to different extents at different n-hexanol composition ranges. 1D, DOSY, and T1and T2relaxation time analyses by 1H-NMR allow understanding the dynamics of the mixtures. NIR allows verifying the formation of n-hexanol polymeric species. In addition, an n-hexanol/cyclohexane mixture with an alcohol molar fraction of 0.177 has been titrated with water, revealing the formation of a microemulsion containing water droplets that evolves to a bicontinuous microemulsion with increasing water content. Stable boundary water is detected at the microemulsion interface.
AB - In this work we present a study on the association of n-hexanol in cyclohexane using NMR and NIR spectroscopies. Abrupt changes on spectroscopic responses have been observed at low molar fractions of n-hexanol, which are related to hydrogen bond network formation that includes trace water. Molecular interactions are found to be dominated by dispersion forces, hydrogen bonding, and dipolar interactions, to different extents at different n-hexanol composition ranges. 1D, DOSY, and T1and T2relaxation time analyses by 1H-NMR allow understanding the dynamics of the mixtures. NIR allows verifying the formation of n-hexanol polymeric species. In addition, an n-hexanol/cyclohexane mixture with an alcohol molar fraction of 0.177 has been titrated with water, revealing the formation of a microemulsion containing water droplets that evolves to a bicontinuous microemulsion with increasing water content. Stable boundary water is detected at the microemulsion interface.
KW - Alcohol self-association
KW - NIR
KW - NMR
KW - Water-in-oil microemulsions
UR - http://www.scopus.com/inward/record.url?scp=84907270805&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84907270805&partnerID=8YFLogxK
U2 - 10.1016/j.molliq.2014.09.012
DO - 10.1016/j.molliq.2014.09.012
M3 - Article
AN - SCOPUS:84907270805
VL - 199
SP - 301
EP - 308
JO - Journal of Molecular Liquids
JF - Journal of Molecular Liquids
SN - 0167-7322
ER -