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Absolute Intensities of the Infrared Bands of Gaseous Acrylonitrile
1LISA (Laboratoire Interuniversitaire des Systèmes Atmosphériques), UMR 7583 du CNRS, 61 Av. du Géneral de Gaulle, Créteil Cedex, 94010, France
Abstract:
Laboratory spectral data (peak positions and integrated band intensities) of the infrared bands of acrylonitrile (CH2CHCN) gas in the region 4000-220 cm-1 are presented. Even though CH2CHCN has not yet been identified in Titan's atmosphere, it is among the possible photochemical and cosmic irradiation products of CH4 + N2 chemistry in the atmosphere of Titan. Laboratory simulations of Titan's atmospheric chemistry also give CH2CHCN as a product species. The results of our evaluation of the infrared intensity data provide an upper limit of the stratospheric abundance of CH2CHCN. Copyright 1999 Academic Press.