Cosmic-ray-induced chemical processes in CH3OH, CH3NH2, and CH3OH:CH3NH2 ices - Conventional and novel IR spectroscopic analysis with VIZSLA

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Table 1

Molecules identified in the experiments conducted on pure CH₃OH ices.

Electron irradiated CH₃OH ice

Molecule	Previous studies			This work (ice)	This work (Ar matrix)
	Bennett et al. (2007)	Jheeta et al. (2013)	Sullivan et al. (2016)
H₂ĊOH	+	+	+	+	− −
H₂CO	+	+	+	+	− −
HĊO	+	−	−	+	− −
CO	+	+	+	+	+
CH₄	+	+	+	+	− −
CO₂	+	+	+	+	+
HOCH₂CH₂OH	+	−	+	+	+
HOCH₂CHO	+	−	−	+	−
CH₃OCHO	+	−	−	+	+
CH₃OCH₃	−	−	+	+	− −
HCOOH	−	−	−	−	+

Notes. A “+” indicates the identified molecules, “−” the species that remained absent during the experiments, and “− −” species that completely depleted in the ice by 175 K.

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