Chemical changes induced during heating of acetonitrile-rich ice pre-irradiated by X-rays and its implication in astrochemistry

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy（2022）

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摘要

•Acetonitrile-rich ice samples were produced and thermally processed.•Thermal desorption of acetonitrile was shown to be between 120 K and 200 K.•Thermal desorption of acetonitrile depends weakly on chemical vicinity.•Thermal processing of the sample produced new infrared features.•New features indicate the possible production of HCN, C2N2, NH3, CN and NH2CH2CN.

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关键词

Energetic processing,Acetonitrile ice,Infrared Spectroscopy,Astrophysical ices

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