Carbon tetrachloride under extreme conditions

Pravica, Michael; Sneed, Daniel; Wang, Yonggang; Smith, Quinlan; Subrahmanyam, Garimella

doi:10.1063/1.4876220

Carbon tetrachloride under extreme conditions

Journal Article · Wed May 21 00:00:00 EDT 2014 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4876220· OSTI ID:1454613

Pravica, Michael ^[1]; Sneed, Daniel ^[2]; Wang, Yonggang ^[2]; Smith, Quinlan ^[2]; Subrahmanyam, Garimella ^[3]

Univ. of Nevada, Las Vegas, NV (United States); UC Berkeley
Univ. of Nevada, Las Vegas, NV (United States)
Univ. of Saskatchewan, Saskatoon, SK (Canada)

We report on three experiments on carbon tetrachloride subjected to extreme conditions. In the first experiment, Raman spectra of CCl₄ were acquired up to 28 GPa. Evidence was observed for at least two new phases of CCl₄ above 14 GPa (phase VI) and above 22 GPa (phase VII). Decompression of the sample showed no evidence of pressure-induced decomposition. In the second experiment, a synchrotron x-ray diffraction study was performed up to 30 GPa verifying phase V and potential phases above 14 (VI) and 22 GPa (VII), respectively. In the third study, we examined irradiated CCl₄ using synchrotron infrared spectroscopy to reduce fluorescent contamination. Some sort of carbon allotrope appears as a byproduct suggesting the following reaction with hard x-rays: CCl₄+ hν → C + 2Cl₂.

Research Organization:: Nuclear Science and Security Consortium, Berkeley, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0000979

OSTI ID:: 1454613

Alternate ID(s):: OSTI ID: 22254855
OSTI ID: 1133209

Journal Information:: Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 19 Vol. 140; ISSN 0021-9606

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited By (1)

In Situ Raman Spectroscopic Studies of Liquid Carbon Tetrachloride (CCl ₄ ) Under Static and Laser-Driven Shock Compression Rao, Usha; Chaurasia, Shivanand; Sijoy, C. D. Applied Spectroscopy, Vol. 73, Issue 12 https://doi.org/10.1177/0003702819856372	journal	August 2019