DIAGNOSTIC OF SMALL WEAK INTERACTIONS IN GASOLINE BLENDS BY ATTENUATED TOTAL REFLECTION INFRARED SPECTROSCOPY

Twagirayezu, Sylvestre

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https://hdl.handle.net/2142/122526 Copy

Description

Title

DIAGNOSTIC OF SMALL WEAK INTERACTIONS IN GASOLINE BLENDS BY ATTENUATED TOTAL REFLECTION INFRARED SPECTROSCOPY

Author(s)

Twagirayezu, Sylvestre

Contributor(s)

• Zhao, Jianbao
• Billinghurst, Brant E.
• Smith , Joshua G

Issue Date

2023-06-20

Keyword(s)

Mini-symposium: Spectroscopy at Large-scale Facilities

Abstract

Attenuated Total Reflection Infrared Spectra of artificially-prepared gasoline blends have been recorded using the Far-infrared Beamline at Canadian Light Source in the 600-1200 cm−¹region. The CLS Far-infrared Beamline is a synchrotron facility equipped with a high-resolution FT-IR spectrometer and an attenuated total reflection instrument capable of offering a very stable bright light sources and spectral high resolution. The present vibrational spectra display multiple, but distinct, vibrational signatures of ethanol, isopropanol, and hydrocarbon. The analysis of OH bend, C-C and CO stretches by fitting the observed vibrational spectra to a Voigt profile allowed the determination of vibrational centers. For both gasoline blends, we noted significant vibrational shifts and attribute these to changes in force constants as a result of small weak interactions between hydrocarbons and polar component of gasoline blend.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

Text

Language

eng

Handle URL

https://hdl.handle.net/2142/122526

DOI

https://doi.org/10.15278/isms.2023.7001

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