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Two-Dimensional Infrared Spectroscopy of Stearic Acid Methylene Scissoring Bond Vibration

HU Rui-shen

Abstract

Stearic acid methylene scissoring bond vibration(δCH2) of one-dimensional infrared spectroscopy,second derivative infrared spectroscopy and two-dimensional infrared spectroscopy were measured in the temperature range from 293 K to 393 K.The first key band frequencies and the unreported second key band frequencies were discovered in the band region from 1440 to 1480 cm-1.The temperature effect on band intensity and ordered change were discussed as well.The study demonstrated the key role of two-dimensional infrared spectroscopy in the analysis of material thermal denaturation.

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Key concepts: Infrared spectroscopy, Spectroscopy, Infrared, Materials science, Methylene, Stearic acid, Fourier transform infrared spectroscopy, Two-dimensional infrared spectroscopy