Molecular motion in liquid benzene at high pressures

1980 ◽  
Vol 15 (5) ◽  
pp. 403-409 ◽  
Author(s):  
V. P. Arkhipov ◽  
N. K. Gaisin
Keyword(s):  
Molecular Motion ◽  
High Pressures ◽  
Liquid Benzene

scholarly journals Carbon clusters formed from shocked benzene

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
D. M. Dattelbaum ◽  
E. B. Watkins ◽  
M. A. Firestone ◽  
R. C. Huber ◽  
R. L. Gustavsen ◽  
...  
Keyword(s):  
High Pressures ◽  
Complex Mixture ◽  
Carbon Clusters ◽  
X Rays ◽  
Reaction Products ◽  
Ambient Conditions ◽  
X Ray Diffraction ◽  
X Ray ◽  
Liquid Benzene ◽  
X Ray Scattering

AbstractBenzene (C6H6), while stable under ambient conditions, can become chemically reactive at high pressures and temperatures, such as under shock loading conditions. Here, we report in situ x-ray diffraction and small angle x-ray scattering measurements of liquid benzene shocked to 55 GPa, capturing the morphology and crystalline structure of the shock-driven reaction products at nanosecond timescales. The shock-driven chemical reactions in benzene observed using coherent XFEL x-rays were a complex mixture of products composed of carbon and hydrocarbon allotropes. In contrast to the conventional description of diamond, methane and hydrogen formation, our present results indicate that benzene’s shock-driven reaction products consist of layered sheet-like hydrocarbon structures and nanosized carbon clusters with mixed sp2-sp3 hybridized bonding. Implications of these findings range from guiding shock synthesis of novel compounds to the fundamentals of carbon transport in planetary physics.

Molecular motion in solidH2at high pressures

1989 ◽  
Vol 40 (18) ◽  
pp. 12492-12498 ◽  
Author(s):  
Sam-Hyeon Lee ◽  
Mark S. Conradi ◽  
R. E. Norberg
Keyword(s):  
Molecular Motion ◽  
High Pressures

Phase equilibrium and metastability of liquid benzene at high pressures

2006 ◽  
Vol 124 (20) ◽  
pp. 204505 ◽  
Author(s):  
M. Azreg-Aïnou ◽  
A. Hüseynov ◽  
B. İbrahimoğlu
Keyword(s):  
Phase Equilibrium ◽  
High Pressures ◽  
Liquid Benzene

Brillouin scattering from liquid benzene at high pressures

1977 ◽  
Vol 66 (5) ◽  
pp. 1940-1942 ◽  
Author(s):  
F. D. Medina ◽  
D. C. O’Shea
Keyword(s):  
High Pressures ◽  
Brillouin Scattering ◽  
Liquid Benzene

Brillouin Scattering in Liquid Benzene Under High Pressure

1983 ◽  
Vol 38 (9) ◽  
pp. 980-986
Author(s):  
A. Asenbaum ◽  
H. D. Hochheimer
Keyword(s):  
Specific Heat ◽  
High Pressures ◽  
Cell Model ◽  
Transport Coefficients ◽  
Energy Relaxation ◽  
Constant Density ◽  
Sphere Diameter ◽  
Vibrational Modes ◽  
Relaxation Rates ◽  
Liquid Benzene

Abstract Brillouin spectra have been measured in liquid Benzene at high pressures up to 1300 bar and at the temperatures 298.15 K, 313.15 K, 323.15 K. and 343.15 K. From the experimental spectra the hypersound velocities and the energy relaxation times were determined. The total velocity dispersion ν2∞/ν20 due to the relaxation of the vibrational specific heat c, is found to be nearly density independent in the pressure interval under study. It follows further that the experimentally determined specific heat corresponds to the theoretical value calculated with the vibrational modes of the Benzene molecule. The energy relaxation time t, connected with all vibrational modes but the lowest decreases with increasing density at constant temperature, at constant density τ1 decreases with growing temperature. The relative relaxation rates were used to test the cell model (CM) with movable walls and the collision theory (HS) of Einwohner and Alder. Using a hard sphere diameter derived from ex-perimental transport coefficients the experimental results were predicted better by HS than by CM.

On a raman linewidth study of molecular motion in liquid benzene

1976 ◽  
Vol 15 (2) ◽  
pp. 195-200 ◽  
Author(s):  
M.N. Neuman ◽  
G.C. Tabisz
Keyword(s):  
Molecular Motion ◽  
Liquid Benzene

A first-principles Hartree-Fock description of MnO at high pressures

1998 ◽  
Vol 77 (4) ◽  
pp. 1063-1075
Author(s):  
W. C. Mackrodt, E.-A. Williamson, D. W
Keyword(s):  
First Principles ◽  
High Pressures ◽  
Hartree Fock
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