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A comparison of the Raman dispersion in different polyacetylenes with aromatic ring substituents

✍ Scribed by R.P. Millen; D.L.A. de Faria; M.L.A. Temperini


Book ID
116898027
Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
259 KB
Volume
156
Category
Article
ISSN
0379-6779

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Porphyrins exhibiting ideal symmetry show depolarization ratios of their Raman-active and D 4h A 1g , B 1g , B 2g A 2g type vibrations which are independent of the wavenumber of the exciting radiation, namely 0.125 for 0.75 for A 1g , and and inÐnite for modes. Symmetry-lowering distortions, which c