TEMPORAL CHANGE OF RAMAN SPECTRA OF CARBON TETRACHLORIDE UNDER LASER-DRIVEN SHOCK COMPRESSION

2008 ◽  
Author(s):  
K. Wakabayashi ◽  
T. Matsumura ◽  
Y. Nakayama ◽  
E. Yamada ◽  
M. Koshi ◽  
...  
Keyword(s):  
Carbon Tetrachloride ◽  
Raman Spectra ◽  
Shock Compression ◽  
Temporal Change

Application of Raman Spectroscopy to the Study of Adsorption Effects at Liquid-Solid Interfaces

1982 ◽  
Vol 36 (4) ◽  
pp. 471-473 ◽  
Author(s):  
Klaus Witke
Keyword(s):  
Raman Spectroscopy ◽  
Carbon Tetrachloride ◽  
Adsorption Isotherm ◽  
Minimal Surface ◽  
Linear Relationship ◽  
Surface Area ◽  
Long Range ◽  
Raman Spectra ◽  
Sample Cell ◽  
Minimal Surface Area

A sample cell for investigating suspensions or emulsions by Raman spectroscopy in the optically favorable 90° scattering arrangement is described. The Raman spectra of pyridine in a suspension of Aerosil 200 in carbon tetrachloride are recorded. The adsorption isotherm of pyridine is determined from the intensities of the Raman lines at 1008 and 990 cm−1. Over a long range of coverage a linear relationship exists between reciprocal concentrations of chemisorbed and dissolved molecules. The minimal surface area that is occupied by a chemisorbed molecule is determined to be approximately 0.75 nm2.

The structures and vibrational spectra of methyl chloroformate and dimethyl carbonate

1966 ◽  
Vol 19 (9) ◽  
pp. 1637 ◽  
Author(s):  
B Collingwood ◽  
H Lee ◽  
JK Wilmshurst
Keyword(s):  
Carbon Tetrachloride ◽  
Raman Spectra ◽  
Infrared Spectra ◽  
Vibrational Spectra ◽  
Dimethyl Carbonate ◽  
Carbon Disulphide ◽  
Vapour Phase ◽  
Carboxylate Group ◽  
Infrared Band

The infrared spectra of methyl chloroformate and dimethyl carbonate in the vapour phase and as solutions in carbon disulphide and carbon tetrachloride have been obtained from 4000 to 400 cm-1 together with the Raman spectra of the liquids. The infrared band contours for both molecules are consistent with a cis configuration of the carboxylate group and the spectra may be interpreted satisfactorily on this basis.

Observation of Hot Bands in the Raman Spectra of Cl2 Gas and CCl4 Vapor

1971 ◽  
Vol 25 (3) ◽  
pp. 360-362 ◽  
Author(s):  
G. Hochenbleicher ◽  
H. W. Schrötter
Keyword(s):  
Raman Spectrum ◽  
Carbon Tetrachloride ◽  
Absorption Spectra ◽  
Raman Spectra ◽  
Atmospheric Pressure ◽  
Anharmonicity Constant ◽  
Band Contour ◽  
Good Agreement

Hot bands were resolved in the vibrational Raman spectrum of chlorine at atmospheric pressure. The anharmonicity constant is in good agreement with the value obtained from absorption spectra. In carbon tetrachloride vapor the hot bands contributing the the ν1 band contour were investigated from 25° to 130°C.

In Situ Raman Spectroscopic Studies of Liquid Carbon Tetrachloride (CCl4) Under Static and Laser-Driven Shock Compression

2019 ◽  
Vol 73 (12) ◽  
pp. 1420-1427
Author(s):  
Usha Rao ◽  
Shivanand Chaurasia ◽  
C. D. Sijoy ◽  
Vinayak Mishra ◽  
M. N. Deo
Keyword(s):  
Carbon Tetrachloride ◽  
Shock Compression ◽  
Spectroscopic Studies ◽  
Raman Signal ◽  
Time Resolved ◽  
Raman Spectroscopic ◽  
Bending Mode ◽  
Raman Modes ◽  
Diamond Anvil ◽  
The One

High pressure (up to ∼2.2 GPa) Raman scattering studies were performed in carbon tetrachloride (CCl4) under static and dynamic compressions using diamond anvil cell (DAC) and laser-driven shock methods, respectively, and their results are compared. The laser-driven shock experiments were conducted in a glass-confined target geometry. The symmetric stretching mode ν1, symmetric bending mode ν2, and asymmetric bending mode ν4 blueshifts with pressure. Mode Gruneisen parameters were obtained for the above Raman modes. Time-resolved Raman spectroscopic (TRRS) studies were performed under laser-driven shock compression at different delay times. Shock velocity deduced from the intensity ratios of Raman signal scattered from unshocked and shocked regions of symmetric stretching mode is in agreement with the one obtained from one-dimensional hydrodynamic simulations.

THE RAMAN SPECTRA OF LIQUID SULPHUR TRIOXIDE AND SOLUTIONS OF SULPHUR TRIOXIDE IN INERT SOLVENTS

1961 ◽  
Vol 39 (11) ◽  
pp. 2189-2200 ◽  
Author(s):  
R. J. Gillespie ◽  
E. A. Robinson
Keyword(s):  
Carbon Tetrachloride ◽  
Raman Spectra ◽  
Sulphur Dioxide ◽  
Monomeric Form ◽  
Polymeric Form ◽  
Cyclic Trimer ◽  
Low Concentrations ◽  
Polymeric Species ◽  
Liquid Sulphur ◽  
Sulphur Trioxide

The Raman spectra of liquid sulphur trioxide and of sulphur trioxide dissolved in a number of "inert" solvents have been investigated. A detailed analysis of the spectrum of liquid sulphur trioxide supports the earlier suggestion of Gerding and Nijveld that the main polymeric species in liquid sulphur trioxide is the cyclic trimer. Frequencies are assigned for all the Raman active vibrations of the cyclic trimer. These assignments differ substantially from those given previously by Gerding and Nijveld.The spectra of dilute solutions of sulphur trioxide in sulphur dioxide, sulphuryl chloride, carbon tetrachloride, tetrachlorethylene, and trichlorfluormethane (Freon 11) show that the sulphur trioxide is present mainly in the monomeric form at low concentrations while at higher concentrations a polymeric form, which is very probably the trimer, is also present.

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