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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 by Yukiteru Katsumoto; Takeyuki Tanaka; Yukihiro Ozaki; Shinzo Hosoi is a Chemistry article available to read on EtoBox.

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The concentration dependence of the C O stretching (n C O ) band of N,N-dimethylacetamide (NdMA) in cyclohexane, n-hexane, and CCl 4 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 n C O envelopes in both the Raman and IR spectra are asymmetric to the lowwavenumber 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

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Author

Yukiteru Katsumoto; Takeyuki Tanaka; Yukihiro Ozaki; Shinzo Hosoi

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0924-2031)

Published

2009

Language

EN

Field

Chemistry (Physical Sciences)