Infrared absorption line shapes in the classical limit: A comparison of the classical dipole and fluctuating frequency approximations

2008 ◽  
Vol 128 (18) ◽  
pp. 184504 ◽  
Author(s):  
J. R. Schmidt ◽  
S. A. Corcelli
Keyword(s):  
Absorption Line ◽  
Infrared Absorption ◽  
Classical Limit ◽  
Line Shapes

On the role of molecular clustering on infrared absorption line shapes of acetylene in a supersonic expansion

2008 ◽  
Vol 463 (4-6) ◽  
pp. 345-348 ◽  
Author(s):  
K. Didriche ◽  
C. Lauzin ◽  
P. Macko ◽  
W.J. Lafferty ◽  
R.J. Saykally ◽  
...  
Keyword(s):  
Absorption Line ◽  
Infrared Absorption ◽  
Supersonic Expansion ◽  
Line Shapes ◽  
Molecular Clustering

scholarly journals Production and Characterization of Oxyhydroxyapatites

2018 ◽  
Vol 762 ◽  
pp. 48-53
Author(s):  
Liene Pluduma ◽  
Karlis Agris Gross ◽  
Christian Rey ◽  
Arnolds Ubelis ◽  
Astrida Berzina
Keyword(s):  
Fourier Transform ◽  
Detailed Analysis ◽  
Absorption Line ◽  
Infrared Absorption ◽  
Fourier Transform Infrared ◽  
Peak Shift ◽  
Ion Absorption ◽  
Hydroxyl Ion

The amount and alignment of hydroxyl ions influence the bioactivity of hydroxyapatite. Hydroxyl ions in hydroxyapatite are the most mobile and upon heating are the first to leave the lattice to form oxyhydroxyapatite. This work describes a method for producing hydroxyapatite with different amounts of hydroxyl ions, and reports on the changes in Fourier transform infrared absorption at increasing level of dehydroxylation. Detailed analysis of spectra in the 500 – 700 cm-1 range showed a peak shift for the hydroxyl ion absorption line at 632 cm-1 to 637 cm-1 and an increase in the wavenumber for the phosphate line at 575 cm-1.

Comment on the Calculation of Absorption Line Shapes for Mixed-Valence Dimers

1994 ◽  
Vol 98 (43) ◽  
pp. 11230-11232 ◽  
Author(s):  
Mary Jo Ondrechen ◽  
Alessandro Ferretti ◽  
Alessandro Lami ◽  
Giovanni Villani
Keyword(s):  
Absorption Line ◽  
Mixed Valence ◽  
Line Shapes

Line Shapes in Infrared Absorption by Solids and by Atomic or Molecular Species Embedded in Solids

2010 ◽  
Vol 114 (27) ◽  
pp. 7353-7358 ◽  
Author(s):  
Miguel Lagos ◽  
Felipe A. Asenjo ◽  
Roberto Hauyón ◽  
Denisse Pastén ◽  
Pablo S. Moya
Keyword(s):  
Infrared Absorption ◽  
Molecular Species ◽  
Line Shapes
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