Proton transfer reactions between nitric acid and acetone, hydroxyacetone, acetaldehyde and benzaldehyde in the solid phase

Lasne, J.; Laffon, C.; Parent, P.

doi:10.1039/c2cp42033c

Cited by 2 publications

(2 citation statements)

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“…More recently, Lasne at al. 16,17 reported RAIRS studies of the interactions of acetone and other oxygenated volatile organic compounds with the surfaces of pure or nitric acid-containing ice films. Theoretical studies of this subject include molecular dynamics simulations by Picaud and Hoang, 18,19 force-field method calculations by Hammer and Schmidt, 20 and quantum chemical calculations by Marinelli and Allouche.…”

Section: Introductionmentioning

confidence: 99%

“…Souda examined the surface diffusion and hydration of acetone molecules on porous and nonporous ASW films, based on the results of time-of-flight secondary ion mass spectrometry and TPD experiments. More recently, Lasne at al. , reported RAIRS studies of the interactions of acetone and other oxygenated volatile organic compounds with the surfaces of pure or nitric acid-containing ice films. Theoretical studies of this subject include molecular dynamics simulations by Picaud and Hoang, , force-field method calculations by Hammer and Schmidt, and quantum chemical calculations by Marinelli and Allouche .…”

Section: Introductionmentioning

confidence: 99%

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Phase Transitions of Amorphous Solid Acetone in Confined Geometry Investigated by Reflection Absorption Infrared Spectroscopy

et al. 2014

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We investigated the phase transformations of amorphous solid acetone under confined geometry by preparing acetone films trapped in amorphous solid water (ASW) or CCl4. Reflection absorption infrared spectroscopy (RAIRS) and temperature-programmed desorption (TPD) were used to monitor the phase changes of the acetone sample with increasing temperature. An acetone film trapped in ASW shows an abrupt change in the RAIRS features of the acetone vibrational bands during heating from 80 to 100 K, which indicates the transformation of amorphous solid acetone to a molecularly aligned crystalline phase. Further heating of the sample to 140 K produces an isotropic solid phase, and eventually a fluid phase near 157 K, at which the acetone sample is probably trapped in a pressurized, superheated condition inside the ASW matrix. Inside a CCl4 matrix, amorphous solid acetone crystallizes into a different, isotropic structure at ca. 90 K. We propose that the molecularly aligned crystalline phase formed in ASW is created by heterogeneous nucleation at the acetone-water interface, with resultant crystal growth, whereas the isotropic crystalline phase in CCl4 is formed by homogeneous crystal growth starting from the bulk region of the acetone sample.

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