Identification of overlapping features in the sum frequency generation vibrational spectra of air/ethanol interface

Wei Gan; Zhen Zhang; Ran ran Feng; Hong fei Wang

doi:10.1016/j.cplett.2006.03.084

Identification of overlapping features in the sum frequency generation vibrational spectra of air/ethanol interface

Wei Gan
, Zhen Zhang
, Ran ran Feng
, Hong fei Wang^*

^*Corresponding author for this work

CAS - Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

The stretching vibrations of the -CH₃ and -CH₂- groups not only overlap but also interfere with each other in the Sum-Frequency Generation (SFG) vibrational spectra of the air/ethanol interface. Using deuterated ethanol samples, i.e., CH₃CD₂OH and CD₃CH₂OH, the C-H stretching vibrational modes are clearly assigned for the SFG vibrational spectra of their air/liquid interfaces according to the polarization selection rules. It is found that the CH₃-ss and CH₂-ss modes overlap in the ∼2875 cm^-1 peak, the CH₃-as and CH₂-ss-Fermi modes overlap in the ∼2970 cm^-1 peak, and the ∼2930 cm^-1 peak belongs to the CH₃-ss-Fermi mode, respectively.

Original language	English
Pages (from-to)	261-265
Number of pages	5
Journal	Chemical Physics Letters
Volume	423
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2006.03.084
State	Published - 1 Jun 2006
Externally published	Yes

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10.1016/j.cplett.2006.03.084

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@article{2487c7567a3a48c9af3d96de18853e27,

title = "Identification of overlapping features in the sum frequency generation vibrational spectra of air/ethanol interface",

abstract = "The stretching vibrations of the -CH3 and -CH2- groups not only overlap but also interfere with each other in the Sum-Frequency Generation (SFG) vibrational spectra of the air/ethanol interface. Using deuterated ethanol samples, i.e., CH3CD2OH and CD3CH2OH, the C-H stretching vibrational modes are clearly assigned for the SFG vibrational spectra of their air/liquid interfaces according to the polarization selection rules. It is found that the CH3-ss and CH2-ss modes overlap in the ∼2875 cm-1 peak, the CH3-as and CH2-ss-Fermi modes overlap in the ∼2970 cm-1 peak, and the ∼2930 cm-1 peak belongs to the CH3-ss-Fermi mode, respectively.",

author = "Wei Gan and Zhen Zhang and Feng, \{Ran ran\} and Wang, \{Hong fei\}",

year = "2006",

month = jun,

day = "1",

doi = "10.1016/j.cplett.2006.03.084",

language = "英语",

volume = "423",

pages = "261--265",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

number = "4-6",

}

TY - JOUR

T1 - Identification of overlapping features in the sum frequency generation vibrational spectra of air/ethanol interface

AU - Gan, Wei

AU - Zhang, Zhen

AU - Feng, Ran ran

AU - Wang, Hong fei

PY - 2006/6/1

Y1 - 2006/6/1

N2 - The stretching vibrations of the -CH3 and -CH2- groups not only overlap but also interfere with each other in the Sum-Frequency Generation (SFG) vibrational spectra of the air/ethanol interface. Using deuterated ethanol samples, i.e., CH3CD2OH and CD3CH2OH, the C-H stretching vibrational modes are clearly assigned for the SFG vibrational spectra of their air/liquid interfaces according to the polarization selection rules. It is found that the CH3-ss and CH2-ss modes overlap in the ∼2875 cm-1 peak, the CH3-as and CH2-ss-Fermi modes overlap in the ∼2970 cm-1 peak, and the ∼2930 cm-1 peak belongs to the CH3-ss-Fermi mode, respectively.

AB - The stretching vibrations of the -CH3 and -CH2- groups not only overlap but also interfere with each other in the Sum-Frequency Generation (SFG) vibrational spectra of the air/ethanol interface. Using deuterated ethanol samples, i.e., CH3CD2OH and CD3CH2OH, the C-H stretching vibrational modes are clearly assigned for the SFG vibrational spectra of their air/liquid interfaces according to the polarization selection rules. It is found that the CH3-ss and CH2-ss modes overlap in the ∼2875 cm-1 peak, the CH3-as and CH2-ss-Fermi modes overlap in the ∼2970 cm-1 peak, and the ∼2930 cm-1 peak belongs to the CH3-ss-Fermi mode, respectively.

UR - https://www.scopus.com/pages/publications/33646564995

U2 - 10.1016/j.cplett.2006.03.084

DO - 10.1016/j.cplett.2006.03.084

M3 - 文章

AN - SCOPUS:33646564995

SN - 0009-2614

VL - 423

SP - 261

EP - 265

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4-6

ER -

Identification of overlapping features in the sum frequency generation vibrational spectra of air/ethanol interface

Abstract

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