Solid-state formation of CO2 via the H2CO + O reaction

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Table 3

List of infrared features in the RAIR spectra shown in Figs. 4–6, and A.1.

Molecule	Mode	Wavenumber
		(cm^-1)

HCO	CO str	1733 ± 1 ^a
	CH₂ scis	1502 ± 1
	CH₂ rock	1247 ± 2
HCO	¹³CO str	1697
	¹³CH₂ scis	1502
	¹³CH₂ rock	1174
DCO	CO str	1680
	CD₂ a-scis	2154
O₃	O-O a-str	1047−1042^b
¹²CO₂	Anti str	2347 ± 2−2359 ^b
¹³CO₂	Anti str	2285

Notes.

^(a)

“±” considers the small shifts of the IR features during the same set of measurements;

^(b)

the two values refer to features in spectra obtained after O-atom irradiation of HCO and DCO, respectively.

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