Induced infrared spectra of H2 adsorbed on alkali halide surfaces: separation of ortho- and para-H2 by desorption

1995 ◽  
Vol 331-333 ◽  
pp. 1473-1478 ◽  
Author(s):  
J. Heidberg ◽  
N. Gushanskaya ◽  
O. Schönekäs ◽  
R. Schwarte
Keyword(s):  
Infrared Spectra ◽  
Alkali Halide

Infrared spectra of nitric oxide adsorbed on evaporated alkali halide films

1971 ◽  
Vol 75 (19) ◽  
pp. 2930-2935 ◽  
Author(s):  
A. J. Woodward ◽  
Neville Jonathan
Keyword(s):  
Nitric Oxide ◽  
Infrared Spectra ◽  
Alkali Halide ◽  
Halide Films

Diffuse reflectance infrared spectra of kaolinite and kaolinite/alkali halide mixtures. Curve-fitting of the OH stretching region

1991 ◽  
Vol 69 (11) ◽  
pp. 1786-1790 ◽  
Author(s):  
K. H. Michaelian ◽  
W. I. Friesen ◽  
S. Yariv ◽  
A. Nasser
Keyword(s):  
Infrared Spectra ◽  
Curve Fitting ◽  
Alkali Halide ◽  
Diffuse Reflectance ◽  
Alkali Halides ◽  
Hydroxyl Groups ◽  
Caesium Chloride ◽  
Inner Surface ◽  
Structural Hydroxyl ◽  
Diffuse Reflectance Infrared

Diffuse reflectance infrared spectra of kaolinite and binary mixtures of this clay with alkali halides have been analysed using curve-fitting and deconvolution. For caesium chloride and caesium bromide, decomposition of the hydroxyl stretching region has made it possible to correlate the positions and intensities of bands due to structural hydroxyl groups of kaolinite, or to intercalated water, with the degree of intercalation. One of these bands, arising from uncoupled inner surface OH stretching in kaolinite, is not identifiable in spectra of the uncomplexed clay or mixtures where intercalation did not occur. A new band revealed by curve-fitting spectra of intercalated samples is attributed either to water at the interface between the clay and the alkali halide, or to an FeO—H impurity in the kaolinite. Key words: kaolinite, infrared, curve-fitting.

Infrared Spectra of the Azide Ion in Alkali‐Halide Lattices

1962 ◽  
Vol 37 (5) ◽  
pp. 1069-1077 ◽  
Author(s):  
James I. Bryant ◽  
George C. Turrell
Keyword(s):  
Infrared Spectra ◽  
Alkali Halide ◽  
Azide Ion

Infrared Spectra of MnO4− Ion in Alkali Halide Matrices

1969 ◽  
Vol 51 (4) ◽  
pp. 1484-1488 ◽  
Author(s):  
P. Manzelli ◽  
G. Taddei
Keyword(s):  
Infrared Spectra ◽  
Alkali Halide

Conformational Isomerism and Oriented Polycrystal Formation of Dimethyl Carbonate

1974 ◽  
Vol 52 (10) ◽  
pp. 1994-1996 ◽  
Author(s):  
J. E. Katon ◽  
Mark D. Cohen
Keyword(s):  
Liquid Phase ◽  
Infrared Spectra ◽  
Alkali Halide ◽  
Dimethyl Carbonate ◽  
Conformational Equilibrium ◽  
Equilibrium Mixture ◽  
Polycrystalline Film ◽  
Conformational Isomerism ◽  
Enthalpy Difference ◽  
Oriented Polycrystalline

It has been found that dimethyl carbonate exists in the liquid phase as a conformational equilibrium mixture. The conformers differ by rotation about the C—O bonds. The enthalpy difference of the two conformers is found experimentally to be 2.6 ± 0.5 kcal/mol. Dimethyl carbonate crystallizes in contact with alkali halide windows as an oriented polycrystalline film, as shown by polarized infrared spectra.

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