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The structure and spectroscopy of cyanate and bicarbonate ions. Astrophysical implications

AutorMoreno, Miguel Ángel ; Maté, Belén ; Rodríguez Lazcano, Yamilet; Gálvez, Óscar ; Gómez, Pedro C. ; Herrero, Víctor J. ; Escribano, Rafael
Fecha de publicación2013
EditorAmerican Chemical Society
CitaciónThe journal of physical chemistry, A, Molecules, spectroscopy, kinetics, environment & general theory 117: 9564- 9573 (2013)
ResumenCyanate and bicarbonate are two ions that play active roles in many fields of physics and chemistry, including biological sciences and astrochemistry. We present here a comprehensive study of these species covering a range of phases and methodologies. We have performed theoretical calculations on the isolated ions and their hydrates with one to four water molecules, and in clusters with 15 water molecules. The predicted infrared spectra are compared with observed spectra from experiments where liquid droplets of their solutions are frozen at 14 K on a substrate, to mimic some astrophysical conditions. Crystals of cyanate and bicarbonate sodium and potassium salts are also studied experimental and theoretically. As well, the spontaneous decomposition of cyanate into bicarbonate is documented from the spectra of an aged solution. Finally, the possible astrophysical observation of bicarbonate in water-containing particles is discussed. © 2013 American Chemical Society.
Identificadoresdoi: 10.1021/jp3122616
issn: 1089-5639
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