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How a usual carbamate can become an unusual intermediate: a new chemical pathway to form glycinate in the interstellar medium
Author(s) -
Bossa JeanBaptiste,
Borget Fabien,
Duvernay Fabrice,
Theulé Patrice,
Chiavassa Thierry
Publication year - 2010
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/poc.1682
Subject(s) - methylamine , chemistry , reactivity (psychology) , carbamate , molecule , carbon dioxide , photochemistry , medicinal chemistry , organic chemistry , medicine , alternative medicine , pathology
Experiments on the thermal reactivity of carbon dioxide (CO 2 ) and methylamine (CH 3 NH 2 ) are reported and show methylammonium methylcarbamate (CH 3 NHCOO − CH 3 NH 3 + ) and methylcarbamic acid (CH 3 NHCOOH) are formed at low temperature in solid environment. The VUV ( λ > 120 nm) irradiation of carbamate induces the formation of methylammonium glycinate (MAG). Calculations have been performed to give an insight on the pathway for the formation of the methylcarbamic acid (MCA). These calculations show that the methylamine environment play an important role in the barrier and a cooperative effect of the methylamine molecules has to be taken into account. The implication on the interstellar reactivity is also discussed because this pathway to form glycinate can occur in interstellar ices. Copyright © 2010 John Wiley & Sons, Ltd.