Raman Studies of Molecular Dynamics and Interactions in Liquids

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In order to explore the N-H stretching region of aliphatic amines, we performed a study of the Raman spectrum of n-propylamine at various concentrations in cyclohexane. Statistical analysis provided evidence of a second symmetric stretching vibration, which we were able to assign to nonhydrogen bonded NH2 groups. To obtain additional evidence on the existence of monomers in n-propylamine and to further study hydrogen bonding and Fermi resonance in aliphatic amines, we extended the investigation to the analysis of the Raman spectrum of this compound over an extended range of temperature in the neat liquid phase. This study corroborated our finding ... continued below

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v, 108 leaves : ill.

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Friedman, Barry R. (Barry Richard) May 1984.

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  • Friedman, Barry R. (Barry Richard)

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In order to explore the N-H stretching region of aliphatic amines, we performed a study of the Raman spectrum of n-propylamine at various concentrations in cyclohexane. Statistical analysis provided evidence of a second symmetric stretching vibration, which we were able to assign to nonhydrogen bonded NH2 groups. To obtain additional evidence on the existence of monomers in n-propylamine and to further study hydrogen bonding and Fermi resonance in aliphatic amines, we extended the investigation to the analysis of the Raman spectrum of this compound over an extended range of temperature in the neat liquid phase. This study corroborated our finding that the peak previously assigned to the symmetric stretching mode of hydrogen bonded amines is actually composed of two bands. Furthermore, trends in both the resolved band parameters and the Fermi resonance analysis were tabulated, allowing one to monitor the change in the N-H valence region with concentration and temperature.

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v, 108 leaves : ill.

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  • May 1984

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  • Aug. 22, 2014, 6 p.m.

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  • Feb. 2, 2018, 9:41 a.m.

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Friedman, Barry R. (Barry Richard). Raman Studies of Molecular Dynamics and Interactions in Liquids, dissertation, May 1984; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc332034/: accessed April 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .