The Raman spectra of the vanadium oxytrihalides in the vapour, dissolved, and solid states, and of the mixed oxytrihalides

1972 ◽  
pp. 2429 ◽  
Author(s):  
R. J. H. Clark ◽  
P. D. Mitchell
Keyword(s):  
Raman Spectra ◽  
Solid States

The infra-red absorption bands associated with the COOH and COOD groups in dimeric carboxylic acids. I. The region from 1500 to 500 cm -1

1953 ◽  
Vol 216 (1125) ◽  
pp. 247-266 ◽  
Keyword(s):  
Carboxylic Acids ◽  
Raman Spectra ◽  
Crystalline Solid ◽  
Cooh Group ◽  
Absorption Bands ◽  
Solid States ◽  
Infra Red ◽  
Out Of Plane ◽  
Stretching Vibrations ◽  
Skeletal Deformation

The infra-red spectra of a considerable number of carboxylic acids and their COOD derivatives have been investigated between 1500 and 500 cm -1, as dimeric units in the liquid or crystalline solid states. Under these conditions the COOH group is shown usually to give rise to strong absorption bands in the regions 1420 ±20, 1300 ± 15 and 935 ± 15 cm -1 . The first two of these are found to correspond to closely coupled OH deformation and C—O stretching vibrations occurring in the plane of the (COOH) 2 dimeric ring; the latter is caused by the out-of-plane OH deformation vibration. COOD groups have absorption bands in the ranges 1350 ±50, 1050 ± 10 and 675 ±25 cm -1 , which can be assigned respectively to the C—O stretching mode and the in-plane and out-of-plane OD deformation vibrations. Less constant absorption bands of the COOH group between 700 and 575 cm -1 are attributed to O—C = O skeletal deformation vibrations, and the corresponding bands are found at slightly lower frequencies in the spectra of the COOD derivatives. The results of the infra-red investigation are compared with the Raman spectra of such acids and with related infra-red and Raman frequencies of other molecules. Infra-red spectra of some equimolecuiar mixtures of acids with water have also been studied.

Raman spectra and structure of B2F4in the gaseous and solid states

1973 ◽  
Vol 58 (12) ◽  
pp. 5339-5343 ◽  
Author(s):  
J. R. Durig ◽  
J. W. Thompson ◽  
J. D. Witt ◽  
J. D. Odom
Keyword(s):  
Raman Spectra ◽  
Solid States

The infrared and Raman spectra of 1,2-dibromotetrafluoroethane

1976 ◽  
Vol 54 (14) ◽  
pp. 2220-2227 ◽  
Author(s):  
H. F. Shurvell ◽  
F. Cahill ◽  
V. Devarajan ◽  
D. W. James
Keyword(s):  
Force Field ◽  
Raman Spectra ◽  
Trans Isomer ◽  
Infrared And Raman Spectra ◽  
Polycrystalline Solid ◽  
Solid States

Infrared and Raman spectra of 1,2-dibromotetrafluoroethane have been recorded in vapour, liquid, and polycrystalline solid states. Assignments have been made to trans and gauche isomers. A force field has been obtained for the trans isomer and used to predict the frequencies of the gauche form.

Infrared and Raman Spectra of 1,2-Dichloroethane and its Deuterium Compound in the Gaseous, Liquid, and Solid States

1975 ◽  
Vol 53 (19) ◽  
pp. 2085-2094 ◽  
Author(s):  
S. Mizushima ◽  
T. Shimanouchi ◽  
I. Harada ◽  
Y. Abe ◽  
H. Takeuchi
Keyword(s):  
Internal Rotation ◽  
Raman Spectra ◽  
Mechanical Treatment ◽  
Quantum Mechanical ◽  
Infrared And Raman Spectra ◽  
Normal Coordinate ◽  
Solid States ◽  
Quantum Mechanical Treatment ◽  
Wide Range ◽  
Free Molecules

The infrared and Raman spectra of 1,2-dichloroethane and its deuterium compound in the gaseous, liquid, and solid states have been remeasured in the wide range of wavelength by the experimental techniques developed recently. Normal coordinate treatments have been made for crystals as well as for free molecules by use of computer programs made by us, and all the vibrational frequencies observed for free molecules and crystals have been assigned satisfactorily. Our previous conclusions of the existence of the trans and gauche forms have been confirmed spectroscopically and, furthermore, supported theoretically by the quantum mechanical treatment of the internal rotation.

Spectra and Structure of Silicon-Containing Compounds. XII. Infrared and Raman Spectra of Trimethylvinylsilane and Trimethyl-D9-vinylsilane

1980 ◽  
Vol 34 (1) ◽  
pp. 60-65 ◽  
Author(s):  
J. R. Durig ◽  
W. J. Natter ◽  
M. Johnson-Streusand
Keyword(s):  
Internal Rotation ◽  
Raman Spectra ◽  
Infrared Spectra ◽  
Isotopic Substitution ◽  
Infrared And Raman Spectra ◽  
Vibrational Assignment ◽  
Infrared Band ◽  
Frequency Shifts ◽  
Solid States ◽  
Barriers To Internal Rotation

The Raman spectra (0 to 3300 cm−1) of (CH3)3Si(CHCH2) and (CD3)3Si(CHCH2) in the gaseous, liquid and solid states have been recorded. The infrared spectra (20 to 3300 cm−1) of the same two compounds in the gaseous and solid states have also been recorded. A vibrational assignment based upon depolarization ratios, frequency shifts with isotopic substitution, infrared band contours, and group frequencies is proposed. The SiC3 torsion was observed at 55 and 50 cm−1 for the “light” and “heavy” molecules, respectively, and the barriers to internal rotation were calculated to be 0.73 kcal/mol and 0.64 kcal/mol for the light and heavy compounds, respectively. These results are compared to the corresponding data for similar molecules.

Raman Spectra of Hydrogen and Deuterium Sulfides in the Gas, Liquid and Solid States

1938 ◽  
Vol 6 (8) ◽  
pp. 426-429 ◽  
Author(s):  
George M. Murphy ◽  
John E. Vance
Keyword(s):  
Raman Spectra ◽  
Solid States

Vibrational Spectra and Structure of Organophosphorous Compounds. XIX. Infrared and Raman Spectra and Structure of Methoxydifluorophosphine-D0 and -d3

1980 ◽  
Vol 34 (1) ◽  
pp. 65-71 ◽  
Author(s):  
J. R. Durig ◽  
B. J. Streusand
Keyword(s):  
Raman Spectra ◽  
Vibrational Spectra ◽  
Normal Modes ◽  
Isotopic Substitution ◽  
Infrared And Raman Spectra ◽  
Trans Conformation ◽  
Frequency Shifts ◽  
Solid States ◽  
A Value ◽  
Organophosphorous Compounds

The infrared spectra of CH3OPF2 and CD3OPF2 in the gaseous and solid states and the Raman spectra of the gaseous, liquid, and solid states have been recorded from 3200 to 40 cm−1. Seventeen of the 18 normal modes have been assigned through the use of group frequencies, depolarization values, band contours, and frequency shifts with isotopic substitution. The V3 term of the asymmetric potential function was calculated to have a value of 3.41 kcal/mol from the fundamental and first overtone of the methoxy torsion. The vibrational spectra support a trans conformation for this molecule.

ChemInform Abstract: RAMAN SPECTRA AND STRUCTURE OF B2F4 IN THE GASEOUS AND SOLID STATES

1973 ◽  
Vol 4 (36) ◽  
pp. no-no
Author(s):  
J. R. DURIG ◽  
J. W. THOMPSON ◽  
J. D. WITT ◽  
J. D. ODOM
Keyword(s):  
Raman Spectra ◽  
Solid States

RAMAN EFFECTS WITH LIQUID AND SOLID CARBON DIOXIDE

1932 ◽  
Vol 7 (6) ◽  
pp. 551-555 ◽  
Author(s):  
J. C. McLennan F.R.S. ◽  
H. D. Smith M.A.
Keyword(s):  
Carbon Dioxide ◽  
Raman Spectrum ◽  
Raman Spectra ◽  
Solid Carbon ◽  
Clear Liquid ◽  
Liquid Carbon ◽  
Solid Carbon Dioxide ◽  
Solid States ◽  
New Type ◽  
First Time

This paper describes in detail methods of obtaining clear liquid carbon dioxide and clear solid carbon dioxide in tubes suitable for light-scattering experiments. A description is given of the new type of mercury arc employed as a source of incident light.For the first time, Raman spectra of carbon dioxide in the liquid and solid states are obtained, and compared with the known Raman spectrum of the substance in the gaseous state.Carbon dioxide is the first substance for which Raman spectra have been obtained for all three states.

Single Crystal Raman Spectra of the Phase Transition in KTCNQ

1982 ◽  
Vol 85 (1) ◽  
pp. 297-303 ◽  
Author(s):  
A. D. Bandrauk ◽  
K. D. Truong ◽  
S. Jandl
Keyword(s):  
Phase Transition ◽  
Single Crystal ◽  
Raman Spectra
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