Now showing items 31-35 of 35
Tetrahedral approximation in normal coordinate calculations of high polymers
(Elsevier, 1965-06)
A complete general valence force field for secondary chlorides
(Elsevier, 1973-12)
A general valence force field for secondary chlorides has been refined which includes torsional force constants based on assignments of low frequency modes in model compounds. This force field also incorporates force ...
Vibrational analysis of crystalline diketopiperazine--I. Raman and i.r. spectra
(Elsevier, 1984)
Raman and i.r. spectra have been obtained of diketopiperazine and five of its isotopic derivatives: (CONDCH2)2, (CONHCD2)2, (CONDCD2)2, (13CONHCH2)2 and (13CONDCH2)2. In addition to solution spectra and powder spectra at ...
Assignment of torsion and low frequency bending vibrations of secondary chlorides
(Elsevier, 1973-10)
Far infrared and Raman spectra of 2-chloropropane, 2-chlorobutane and dl- and meso-2,4-dichloropentane have been analyzed in order to assign the torsional force constants in the valence force field for secondary chlorides. ...
Vibrational spectra in the C---H stretching region and the structure of the polymethylene chain
(Elsevier, 1978)
The C---H stretching regions of both the Raman and i.r. spectra of the extended polymethylene chain have broad secondary maxima. In the case of the Raman spectrum, line shapes are dependent on the environment of the chain, ...