Item type |
デフォルトアイテムタイプ_(フル)(1) |
公開日 |
2023-03-18 |
タイトル |
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タイトル |
Effects of dipole interaction and solvation on the C=O stretching band of N,N-dimethylacetamide in nonpolar solutions: Infrared, isotropic and anisotropic Raman measurements |
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言語 |
en |
作成者 |
Katsumoto, Yukiteru
Tanaka, Takeyuki
Ozaki, Yukihiro
Hosoi, Shinzo
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アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
権利情報 |
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権利情報 |
Copyright (c) 2008 Elsevier B.V. |
主題 |
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主題Scheme |
Other |
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主題 |
N,N-Dimethylacetamide |
主題 |
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主題Scheme |
Other |
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主題 |
Infrared spectroscopy |
主題 |
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主題Scheme |
Other |
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主題 |
Isotropic and anisotropic Raman spectra |
主題 |
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主題Scheme |
Other |
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主題 |
Noncoincidence effects |
主題 |
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主題Scheme |
Other |
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主題 |
C=O stretching band |
主題 |
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主題Scheme |
Other |
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主題 |
Nonpolar solvents |
主題 |
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主題Scheme |
NDC |
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主題 |
430 |
内容記述 |
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内容記述 |
The concentration dependence of the C=O stretching (nu(C=O)) band of N,N-dimethylacetamide (NdMA) in cyclohexane, n-hexane, and CCl4 has been investigated by infrared (IR) and polarized Raman spectroscopy. For the neat liquid of NdMA, the noncoincidence of the aniso- and isotropic Raman wavenumbers is evident. In the 0.47 M cyclohexane solution of NdMA, the noncoincidence effect almost disappears and the nu(C=O) envelopes in both the Raman and IR spectra are asymmetric to the low-wavenumber side. When the concentration of NdMA decreases from 0.33 to 0.023 M. the peak of these bands slightly shifts to a higher wavenumber and the band shape becomes symmetric. The shape of the nu(C=O) envelope does not show any significant change below 0.023 M. These results Suggest that the asymmetric shape of the nu(C=O) band observed for the 0.33 M cyclohexane solution is associated with the intermolecular interaction among NdMA molecules, which vanishes at around 0.02 M. Spectral changes for the CCl4 solution of NdMA show a similar tendency. However, the shape and peak wavenumber of the nu(C=O) band observed in a highly diluted CCl4 solution (<= 0.023 M) indicate that the solvation effect of CCl4 is more complicated than those of cyclohexane and n-hexane. The analyses of the nu(C=O) band, which is sensitive to the intermolecular interaction between Solutes and between Solute and solvent for NdMA dissolved in nonpolar solvents. Would serve to clarify the electronic property of the molecule in a solution. |
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言語 |
en |
出版者 |
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出版者 |
Elsevier Science BV |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
出版タイプ |
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出版タイプ |
AO |
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出版タイプResource |
http://purl.org/coar/version/c_b1a7d7d4d402bcce |
関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
10.1016/j.vibspec.2008.11.009 |
関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
http://dx.doi.org/10.1016/j.vibspec.2008.11.009 |
収録物識別子 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0924-2031 |
収録物識別子 |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA10787250 |
開始ページ |
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開始ページ |
119 |
書誌情報 |
Vibrational Spectroscopy
Vibrational Spectroscopy
巻 51,
号 1,
p. 119-124,
発行日 2009-09-18
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旧ID |
28885 |