Intrachain Force Field and Normal Vibrations of Polyethylene Glycol
Authors:
- 1 August 1968
- journal article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 41 (8) , 1798-1808
Abstract
Normal vibrations of polyethylene glycol and the perdeuterated species were treated. Intrachain force field was expressed in terms of local-symmetry coordinates. Force constants were adjusted by the method of least squares, with reference to observed infrared and Raman frequencies. A set of force constants was obtained, which reproduces the observed frequencies with an r. m. s. deviation of 0.9%. The values of the force constants thus refined were discussed in comparison with corresponding values of related molecules. Vibrational assignments of the observed infrared absorption bands and Raman lines were revised on the basis of potential-energy distributions refined in the present treatment.Keywords
This publication has 22 references indexed in Scilit:
- Infra-red spectra of polyethylene glycols and O-deuterated derivativesSpectrochimica Acta Part A: Molecular Spectroscopy, 1967
- General method for calculating helical parameters of polymer chains from bond lengths, bond angles, and internal‐rotation anglesBiopolymers, 1967
- Molecular vibrations and structure of high polymers. II. Helical parameters of infinite polymer chains as functions of bond lengths, bond angles, and internal rotation anglesJournal of Polymer Science, 1961
- Molecular Vibrations and Structures of High Polymers. I. General Method of Normal Coordinate Treatment by Internal Coordinates and Infrared Frequencies and Conformations of (—CH2—)n, (—CH2–O—)n, and (—CH2–O–CH2—)nThe Journal of Chemical Physics, 1961
- CH2 Rocking Frequencies of Ethylene Glycol and Its Derivatives in Relation to the Configuration of Polyethylene GlycolJournal of the American Chemical Society, 1960
- Infrared Spectra of High Polymers. III. Polytetrafluoroethylene and PolychlorotrifluoroethyleneThe Journal of Chemical Physics, 1956
- The vibration spectra of helical molecules: infra-red and Raman selection rules, intensities and approximate frequenciesProceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1953
- The Normal Vibrations of Polyatomic Molecules as Calculated by Urey-Bradley Field. III. A Table of Force ConstantsThe Journal of Chemical Physics, 1949
- The Normal Vibrations of Polyatomic Molecules as Calculated by Urey-Bradley Field. II. Vibrations of Polythene, Ethane, and Their Deuterium CompoundsThe Journal of Chemical Physics, 1949
- The Normal Vibrations of Polyatomic Molecules as Treated by Urey-Bradley FieldThe Journal of Chemical Physics, 1949