Shock-Wave Compression of Carbonyl Compounds

Voskoboinikov, I. M.

doi:10.1023/b:cesw.0000007686.33452.1f

Cited by 7 publications

(4 citation statements)

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“…Trunin et al and Voskoboinikov have reported that under the high temperatures and pressures of shock compression, a deviation in the formic acid Hugoniot is seen at ~15 GPa [1,2]. These data indicate that a change in the density of the liquid occurs under shock, supporting reaction (possible polymerization).…”

Section: Introductionmentioning

confidence: 89%

Shock compression of formic acid

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Sheffield

Dattelbaum

et al. 2012

AIP Conference Proceedings

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Section: Introductionmentioning

confidence: 89%

Shock compression of formic acid

Manner

Sheffield

Dattelbaum

et al. 2012

AIP Conference Proceedings

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“…Surprisingly, there are only a limited number of shock-compression studies of formic acid. Trunin et al 33 and Voskoboinikov 34 have reported a deviation in the shock Hugoniot at approximately 15 GPa under high P–T conditions. These data indicate that a shock-driven change in the density occurs, as a result of possible polymerization.…”

Section: Introductionmentioning

confidence: 95%

High-Pressure Far-Infrared Spectroscopic Studies of Hydrogen Bonding in Formic Acid

et al. 2013

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Simple molecules such as HCOOH, or formic acid, are suggested to have played important roles in planetary physics due to their possibility for high pressure and temperature chemistry under impact conditions. In this study, we have investigated the effect of pressure (up to 50 GPa) on H-bonding and reactivity of formic acid using synchrotron far infrared spectroscopy. Based on the pressure-induced changes to H-bond ν(O-H···O) stretching and γ(O-H···O) deformations, we observe significant reorganization of H-bonding network beginning at ~20 GPa. This is in good agreement with reports of symmetrization of H-bonds reported at 16-21 GPa from X-ray diffraction and Raman spectroscopy studies as well as molecular dynamics simulations. With further increase in pressure, beyond 35 GPa, formic acid undergoes a polymerization process that is complete beyond 45 GPa. Remarkably, upon decompression, the polymeric phase reverts to the crystalline high-pressure phase at 8 GPa.

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“…According to Voskoboinikov [33] the conversion of liquid formic acid at post-shock temperatures starts above 1350 K (which corresponds to 13.5 GPa of shock pressure), while formic acid vapor quickly decomposes (0.01-0.1 ms) at temperatures above 2000 K (i.e. above 23 GPa).…”

Section: Set Of Covolumes Hmxmentioning

confidence: 99%