Vibration Spectra and Normal Coordinate Treatment of Perfluorocyclobutane

1950 ◽  
Vol 18 (4) ◽  
pp. 543-551 ◽  
Author(s):  
Howard H. Claassen
Keyword(s):  
Normal Coordinate ◽  
Vibration Spectra ◽  
Coordinate Treatment

Vibration spectra of sulphur tetranitride

1981 ◽  
Vol 46 (11) ◽  
pp. 2613-2619 ◽  
Author(s):  
Jiří Toužín
Keyword(s):  
Solid State ◽  
Raman Spectra ◽  
Normal Coordinate Analysis ◽  
Infrared And Raman Spectra ◽  
Normal Coordinate ◽  
Vibration Spectra

Available data on infrared and Raman spectra of S4N4 in solid state and solutions have been verified and completed. On the basis of normal coordinate analysis an attempt has been made to define with more precision the interpretation of vibration spectra of this compound given in earlier reports.

Harmonic Force Field and Mean Amplitudes for C4Cl4 and C4F4 Compounds

1982 ◽  
Vol 37 (11) ◽  
pp. 1292-1294 ◽  
Author(s):  
G. Díaz
Keyword(s):  
Force Field ◽  
Vibrational Frequencies ◽  
Vibrational Assignment ◽  
Harmonic Force ◽  
Normal Coordinate ◽  
Coordinate Treatment

Normal coordinate treatment of C4F4 and C4Cl4 in the GVFF was performed using published vibrational frequencies. The vibrational assignment for these molecules is discussed. Calculated mean amplitudes for both molecules are reported.

Resonance Raman spectra

1979 ◽  
Vol 293 (1402) ◽  
pp. 287-302 ◽  
Keyword(s):  
Raman Spectra ◽  
Resonance Raman ◽  
Point Group ◽  
Group Symmetry ◽  
Normal Coordinate ◽  
Bond Lengths ◽  
Bending Force ◽  
Resonance Raman Spectra ◽  
Haem Proteins ◽  
Coordinate Treatment

Selection rules for resonance Raman spectra are given for several porphins of D 4h point group symmetry. A normal coordinate treatment is presented, based on a potential function for which stretching and bending force constants are related to bond lengths, and to the product of the bond lengths of the bonds defining the bending angle, respectively. The results can be correlated with the persistent frequencies observed in the resonance Raman spectra of haem proteins where the haem is an iron octasubstituted porphin.

Normal Coordinate Treatment of Dimethyldiacetylene

1955 ◽  
Vol 23 (3) ◽  
pp. 579-582 ◽  
Author(s):  
Alfons Weber ◽  
Salvador M. Ferigle
Keyword(s):  
Normal Coordinate ◽  
Coordinate Treatment

Vibrational spectra and normal-coordinate treatment of cyclopentadiene and its deuterated derivatives

1975 ◽  
Vol 31 (4) ◽  
pp. 451-461 ◽  
Author(s):  
E. Castellucci ◽  
P. Manzelli ◽  
B. Fortunato ◽  
E. Gallinella ◽  
P. Mirone
Keyword(s):  
Vibrational Spectra ◽  
Normal Coordinate ◽  
Coordinate Treatment
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