Ultrasonic relaxation and internal rotation in butyl formate (L)
S. Z. MirzaevHeat Physics Department, Uzbekistan Academy of Sciences, Katartal 28, Tashkent 700135, UzbekistanZ. BakaevaHeat Physics Department, Uzbekistan Academy of Sciences, Katartal 28, Tashkent 700135, UzbekistanP. K. KhabibullaevHeat Physics Department, Uzbekistan Academy of Sciences, Katartal 28, Tashkent 700135, UzbekistanВ. С. КононенкоHeat Physics Department, Uzbekistan Academy of Sciences, Katartal 28, Tashkent 700135, Uzbekistan
ABI
Abstract
The acoustic spectra of liquid butyl formate have been investigated in the frequency range from 0.1 to 150 MHz and at the temperatures 20 °C, 50 °C, and 80 °C. The ultrasonic spectra of pure butyl formate show a single relaxation term in the frequency range between 200 kHz and 2 MHz. The relaxation process has been assigned to the cis and trans molecular conformations.
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