Far‐Infrared Spectra of Ring Compounds. IX. Far‐Infrared Spectrum and Hindered Pseudorotation in Cyclopentanone

1972 ◽  
Vol 56 (9) ◽  
pp. 4450-4466 ◽  
Author(s):  
Tatsuya Ikeda ◽  
R. C. Lord
Keyword(s):  
Infrared Spectrum ◽  
Infrared Spectra ◽  
Far Infrared ◽  
Ring Compounds ◽  
Hindered Pseudorotation ◽  
Far Infrared Spectra

ChemInform Abstract: Far-Infrared Spectra and Hindered Pseudorotation of 1,3-Oxathiolane.

ChemInform ◽  
2010 ◽  
Vol 23 (34) ◽  
pp. no-no
Author(s):  
S. J. LEIBOWITZ ◽  
J. LAANE ◽  
R. JUN. VERASTEGUI ◽  
J. R. VILLARREAL
Keyword(s):  
Infrared Spectra ◽  
Far Infrared ◽  
Hindered Pseudorotation ◽  
Far Infrared Spectra

The Far Infrared Spectra of Partially Orientationally Ordered Water Molecules: Hexamethylenetetramine Hexahydrate at 95 K

1975 ◽  
Vol 53 (17) ◽  
pp. 2642-2645 ◽  
Author(s):  
John E. Bertie ◽  
Marco Solinas
Keyword(s):  
Infrared Spectrum ◽  
Infrared Spectra ◽  
Far Infrared ◽  
Clathrate Hydrate ◽  
Factor Group ◽  
Water Molecules ◽  
Disordered Solids ◽  
Ordered Water ◽  
Far Infrared Spectra ◽  
Three Phases

The far infrared spectra of four isotopic modifications of the partially orientationally ordered clathrate hydrate hexamethylenetetramine hexahydrate at 95 K are reported. The spectra are assigned to absorption allowed under the diffraction factor group, and to disorder-allowed absorption, following the theory for absorption by translational vibrations in orientationally disordered solids. Three phases formed primarily by hydrogen-bonded water molecules are known to be significantly, but only partially, orientationally ordered, hexamethylenetetramine hexahydrate, ice V, and ice VI. Of these phases, only ice VI fails to show sharp absorption in its far infrared spectrum in addition to the broad, disorder-allowed absorption.

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