Photochemical dehydration of acetamide in a cryogenic matrix

Fabrice Duvernay; Pascal Chatron-Michaud; Fabien Borget; David M. Birney; Thierry Chiavassa

doi:10.1039/b617586d

Photochemical dehydration of acetamide in a cryogenic matrix

Fabrice Duvernay, Pascal Chatron-Michaud, Fabien Borget, David M. Birney, Thierry Chiavassa

Chemistry and Biochemistry

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Abstract

Vacuum ultraviolet (VUV) irradiation of acetamide has been monitored by Fourier transform infrared spectroscopy in argon matrix at 10 K. Several primary photoproducts, including HNCO : CH₄ and CO : CH₃NH ₂ molecular complexes, and acetimidic acid, which is reported for the first time, were characterized. The acetimidic acid identification was based on comparison between the experimental and theoretical (B3LYP) infrared spectra. Acetimidic acid is found in argon matrix in the (s-Z)-(E) and (s-Z)-(Z) configurations. It is also an intermediate in the VUV decomposition process, its dehydration leads to the formation of CH₃CN : H₂O molecular complex. The assignment of the complex was achieved by co-depositing the pairs of respective species and by ab initio calculation. This journal is

Original language	English
Pages (from-to)	1099-1106
Number of pages	8
Journal	Physical Chemistry Chemical Physics
Volume	9
Issue number	9
DOIs	https://doi.org/10.1039/b617586d
State	Published - 2007

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abstract = "Vacuum ultraviolet (VUV) irradiation of acetamide has been monitored by Fourier transform infrared spectroscopy in argon matrix at 10 K. Several primary photoproducts, including HNCO : CH4 and CO : CH3NH 2 molecular complexes, and acetimidic acid, which is reported for the first time, were characterized. The acetimidic acid identification was based on comparison between the experimental and theoretical (B3LYP) infrared spectra. Acetimidic acid is found in argon matrix in the (s-Z)-(E) and (s-Z)-(Z) configurations. It is also an intermediate in the VUV decomposition process, its dehydration leads to the formation of CH3CN : H2O molecular complex. The assignment of the complex was achieved by co-depositing the pairs of respective species and by ab initio calculation. This journal is",

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T1 - Photochemical dehydration of acetamide in a cryogenic matrix

AU - Duvernay, Fabrice

AU - Chatron-Michaud, Pascal

AU - Borget, Fabien

AU - Birney, David M.

AU - Chiavassa, Thierry

PY - 2007

Y1 - 2007

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AB - Vacuum ultraviolet (VUV) irradiation of acetamide has been monitored by Fourier transform infrared spectroscopy in argon matrix at 10 K. Several primary photoproducts, including HNCO : CH4 and CO : CH3NH 2 molecular complexes, and acetimidic acid, which is reported for the first time, were characterized. The acetimidic acid identification was based on comparison between the experimental and theoretical (B3LYP) infrared spectra. Acetimidic acid is found in argon matrix in the (s-Z)-(E) and (s-Z)-(Z) configurations. It is also an intermediate in the VUV decomposition process, its dehydration leads to the formation of CH3CN : H2O molecular complex. The assignment of the complex was achieved by co-depositing the pairs of respective species and by ab initio calculation. This journal is

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Photochemical dehydration of acetamide in a cryogenic matrix

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