Isotopic quantum effects in the structure of liquid ethanol

B. Tomberli; C. J. Benmore; J. Neuefeind; P. A. Egelstaff

doi:10.1139/p02-076

Isotopic quantum effects in the structure of liquid ethanol

B. Tomberli, C. J. Benmore, J. Neuefeind, P. A. Egelstaff

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2 Scopus citations

Abstract

High-energy electromagnetic-radiation-scattering techniques have been used to measure the structural differences between five isotopic samples of ethanol (CH₃CH₂OH, CD₃CD₂OD, CD₃CH₂OH, CH₃CH₂OD, and CH₃CD₂OH) at room temperature and ambient pressure. The differences in the X-ray structure factors between several pairs of isotopes, ΔS_X(Q), are shown to have maximum amplitudes that are on the order of a few percent compared to the total structure factor for CH₃CH₂OH. Our uncertainties are an order of magnitude smaller than those of early gamma-ray measurements on methanol (C.J. Benmore and P.A. Egelstaff. J. Phys. Condens. Matter, 8, 9429 (1996)). These studies have shown that isotopic structural differences in room-temperature ethanol vary as a function of substitution site and are in qualitative agreement with similar differences found in liquid methanol.

Original language	English
Pages (from-to)	1059-1068
Number of pages	10
Journal	Canadian Journal of Physics
Volume	80
Issue number	9
DOIs	https://doi.org/10.1139/p02-076
State	Published - 2002
Externally published	Yes

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title = "Isotopic quantum effects in the structure of liquid ethanol",

abstract = "High-energy electromagnetic-radiation-scattering techniques have been used to measure the structural differences between five isotopic samples of ethanol (CH3CH2OH, CD3CD2OD, CD3CH2OH, CH3CH2OD, and CH3CD2OH) at room temperature and ambient pressure. The differences in the X-ray structure factors between several pairs of isotopes, ΔSX(Q), are shown to have maximum amplitudes that are on the order of a few percent compared to the total structure factor for CH3CH2OH. Our uncertainties are an order of magnitude smaller than those of early gamma-ray measurements on methanol (C.J. Benmore and P.A. Egelstaff. J. Phys. Condens. Matter, 8, 9429 (1996)). These studies have shown that isotopic structural differences in room-temperature ethanol vary as a function of substitution site and are in qualitative agreement with similar differences found in liquid methanol.",

author = "B. Tomberli and Benmore, {C. J.} and J. Neuefeind and Egelstaff, {P. A.}",

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T1 - Isotopic quantum effects in the structure of liquid ethanol

AU - Tomberli, B.

AU - Benmore, C. J.

AU - Neuefeind, J.

AU - Egelstaff, P. A.

PY - 2002

Y1 - 2002

N2 - High-energy electromagnetic-radiation-scattering techniques have been used to measure the structural differences between five isotopic samples of ethanol (CH3CH2OH, CD3CD2OD, CD3CH2OH, CH3CH2OD, and CH3CD2OH) at room temperature and ambient pressure. The differences in the X-ray structure factors between several pairs of isotopes, ΔSX(Q), are shown to have maximum amplitudes that are on the order of a few percent compared to the total structure factor for CH3CH2OH. Our uncertainties are an order of magnitude smaller than those of early gamma-ray measurements on methanol (C.J. Benmore and P.A. Egelstaff. J. Phys. Condens. Matter, 8, 9429 (1996)). These studies have shown that isotopic structural differences in room-temperature ethanol vary as a function of substitution site and are in qualitative agreement with similar differences found in liquid methanol.

AB - High-energy electromagnetic-radiation-scattering techniques have been used to measure the structural differences between five isotopic samples of ethanol (CH3CH2OH, CD3CD2OD, CD3CH2OH, CH3CH2OD, and CH3CD2OH) at room temperature and ambient pressure. The differences in the X-ray structure factors between several pairs of isotopes, ΔSX(Q), are shown to have maximum amplitudes that are on the order of a few percent compared to the total structure factor for CH3CH2OH. Our uncertainties are an order of magnitude smaller than those of early gamma-ray measurements on methanol (C.J. Benmore and P.A. Egelstaff. J. Phys. Condens. Matter, 8, 9429 (1996)). These studies have shown that isotopic structural differences in room-temperature ethanol vary as a function of substitution site and are in qualitative agreement with similar differences found in liquid methanol.

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JF - Canadian Journal of Physics

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Isotopic quantum effects in the structure of liquid ethanol

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