Interaction‐induced infrared spectra of H2 dissolved in water and in carbon tetrachloride

1990 ◽  
Vol 92 (12) ◽  
pp. 7576-7580
Author(s):  
Jorge Alvarez ◽  
Roberto Fernández Prini ◽  
María L. Japas
Keyword(s):  
Carbon Tetrachloride ◽  
Infrared Spectra

Infrared spectra of aqueous sodium benzoates and salicylates in the carboxyl-stretching region: chelation in aqueous sodium salicylates

1969 ◽  
Vol 47 (24) ◽  
pp. 4577-4588 ◽  
Author(s):  
G. E. Dunn ◽  
R. S. McDonald
Keyword(s):  
Salicylic Acid ◽  
Carbon Tetrachloride ◽  
Infrared Spectra ◽  
Aromatic Compounds ◽  
Deuterium Oxide ◽  
Substituent Effects ◽  
Good Evidence ◽  
Frequency Region ◽  
Aqueous Sodium ◽  
Substituent Constants

Infrared spectra in the frequency region 1300–1760 cm−1 are reported for 41 substituted sodium benzoates and 10 substituted sodium salicylates in deuterium oxide solution, and for 9 substituted salicylic acids in chloroform and carbon tetrachloride solutions. Carboxylate stretching frequencies of benzoates and salicylates correlate poorly with substituent constants, but the asymmetric frequencies of benzoates and salicylates correlate well with each other, and the asymmetric frequencies of benzoates correlate well with the asymmetric frequencies of the corresponding nitrobenzenes. It is suggested that, among substituted aromatic compounds, group vibrations which couple with the ring vibrations may correlate well with similar vibrations of other groups, but not with coupled vibrations of different symmetry, uncoupled vibrations, or substituent constants. Chelation in chloroform solutions of salicylic acid dimers can be detected by its influence on substituent effects, but infrared spectra provide no good evidence for chelation in aqueous sodium salicylates.

scholarly journals THE USE OF INFRARED SPECTROPHOTOMETRY FOR THE ESTIMATION OF SMALL QUANTITIES OF SOME HALOGENATED HYDROCARBONS

1953 ◽  
Vol 31 (4) ◽  
pp. 328-337 ◽  
Author(s):  
L. Breitman ◽  
E. W. R. Steacie
Keyword(s):  
Quantitative Analysis ◽  
Carbon Tetrachloride ◽  
Gas Phase ◽  
Infrared Spectra ◽  
Methyl Chloride ◽  
Ternary Mixtures ◽  
Halogenated Hydrocarbons ◽  
Infrared Spectrophotometry ◽  
Absorption Bands ◽  
Binary And Ternary Mixtures

The infrared spectra of chloral, carbon tetrachloride, and chloroform have been determined between 1500 and 650 cm.−1 over a range of pressures in the gas phase. Absorption bands suitable for the quantitative analysis of binary and ternary mixtures of the components have been selected and their peak intensities shown to obey Beer's Law over the range of pressures studied. Ternary mixtures have been analyzed from the spectra with an accuracy of about 20%.The spectra of dichloromethane and methyl chloride have also been measured under comparable conditions.

THE INFRARED CARBONYL STRETCHING BANDS OF RING SUBSTITUTED ACETOPHENONES

1957 ◽  
Vol 35 (5) ◽  
pp. 504-514 ◽  
Author(s):  
R. Norman Jones ◽  
W. F. Forbes ◽  
W. A. Mueller
Keyword(s):  
Carbon Tetrachloride ◽  
Infrared Spectra ◽  
Aromatic Nucleus ◽  
Carbon Tetrachloride Solution ◽  
Substituent Group ◽  
Acetophenone Derivatives

An examination has been made of the carbonyl stretching bands in the infrared spectra of acetophenone derivatives substituted in the aromatic nucleus. The positions, integrated absorption intensities, and widths of the bands have been measured in carbon tetrachloride solution. The variation of these quantities is discussed in relation to the nature and position of the substituent group.

THE INFRARED SPECTRA OF MALONATES AND OXALATES: TEMPERATURE EFFECT

1959 ◽  
Vol 37 (7) ◽  
pp. 1146-1152 ◽  
Author(s):  
R. A. Abramovitch
Keyword(s):  
Carbon Tetrachloride ◽  
Temperature Effect ◽  
Infrared Spectra ◽  
Temperature Effects ◽  
Liquid Films ◽  
Vibrational Coupling ◽  
Rotational Isomers ◽  
Acetonitrile Solutions ◽  
Definite Temperature

The infrared spectra of a number of malonates and oxalates (as liquid films) were examined at various temperatures and narrower slit widths than had previously been used. The absorption in the 5.8 μ region is very complex, at least four bands being observed in each case. Small but definite temperature effects were recorded for both types of esters. At somewhat wider slit widths only two bands were observed, these occasionally having indistinct shoulders. The spectra of some of the compounds were also measured in both carbon tetrachloride and acetonitrile solutions (two bands observed in each case) and the ratios of the intensities of the two bands compared. A possible explanation of the effects observed is that at least two rotational isomers can exist for each compound and that vibrational coupling of the carbonyl stretching frequencies can occur in each of the rotational isomers.

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.

Raman and far-infrared spectra of the monoclinic phase II of carbon tetrachloride

1985 ◽  
Vol 117 (3) ◽  
pp. 240-242 ◽  
Author(s):  
A. Anderson ◽  
H. Basista ◽  
B.H. Torrie ◽  
W.Y. Zeng
Keyword(s):  
Carbon Tetrachloride ◽  
Phase Ii ◽  
Infrared Spectra ◽  
Monoclinic Phase ◽  
Far Infrared ◽  
Far Infrared Spectra

THE EFFECTS OF CHAIN LENGTH ON THE INFRARED SPECTRA OF FATTY ACIDS AND METHYL ESTERS

1962 ◽  
Vol 40 (2) ◽  
pp. 321-333 ◽  
Author(s):  
R. Norman Jones
Keyword(s):  
Fatty Acids ◽  
Carbon Tetrachloride ◽  
Chain Length ◽  
Infrared Spectra ◽  
Comparative Studies ◽  
Carbon Disulphide ◽  
Methyl Esters ◽  
Straight Chain ◽  
Group Frequency ◽  
Chain Fatty Acids

The infrared spectra of straight-chain fatty acids and their methyl esters have been measured over the range 1500–650 cm−1 in carbon tetrachloride and carbon disulphide solution. The effects of the chain length on the peak intensities of the bands have been analyzed in relation to the group frequency assignments derived from comparative studies of deuterium-substituted methyl laurates.

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