Fig. 12

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Experimental IR spectra of ethanol, propanal and propanol compared to IRAS 2A spectrum in the range between 6.8–8.6 µm. The grey area is not considered in the fits, but it is shown here to highlight the C–H stretching mode of these molecules. For better readability of this figure, the gas-phase emission lines between 6.8–7.2 µm are masked.
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