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Table 1

Fundamental infrared band positions (cm-1), for the species identified in the ice during the bombardment of HNCOabc.

Species νN–H νC–H νN=C=Oas νC O νC=O δN–Hs

HNCO 3554/3362/3231 2240
NH2CHO 3313/3169c 2886c 1685b 1385c
OCN−/• 2163a
CO 2136b
CO2 2344a

Notes. ν represents a stretching vibration, and δ a bending vibration.


Positively identified in the H-bombarded HNCO ice.


Tentatively identified in the H-bombarded HNCO ice.


Not identified in the H-bombarded HNCO ice.

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