The Vibrational Spectra and Vibrational Assignments of Isotactic Polybutene-1

Autor:	Minoru Ukita
Rok vydání:	1966
Předmět:	chemistry.chemical_compound Crystallography chemistry Force field (physics) Molecular vibration Tacticity Perpendicular Infrared spectroscopy Polybutene General Chemistry Molecular physics Hot band Symmetry (physics)
Zdroj:	Bulletin of the Chemical Society of Japan. 39:742-749
ISSN:	1348-0634 0009-2673
DOI:	10.1246/bcsj.39.742
Popis:	The polarized infrared spectra of isotactic polybutene-1 in a hexagonal form will be measured in the region from 4000 to 700 cm−1. The normal vibrations of this polymer, which takes a three-fold helical conformation, will be calculated by the use of the GF-matrix method, with the modified Urey-Bradley force field. It will be found that the parallel and perpendicular bands correspond reasonably well to the calculated frequaencies of the A and E(2π/3) symmetry species respectively. In accordance with these correspondences, the assignments of these bands will be made and their vibrational modes discussed.
Databáze:	OpenAIRE
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