Abstraet~Conformational energy calculations have been performed on two crystalline polymorphic forms of syndiotactic polypropylene. A chain conformation having the helicoidal s(2/1)2 symmetry has been obtained for the form of the polymer having chain axis c = 7.40 A.. A chain conformation having the
β¦ LIBER β¦
Valence force calculation of the vibrational frequencies of two forms of crystalline syndiotactic polypropylene
β Scribed by J.H. Schachtschneider; R.G. Snyder
- Publisher
- Elsevier Science
- Year
- 1965
- Weight
- 759 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0371-1951
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UHk SCF ulculations with ZI medium-sized basis set of gaussian lobe functions have been performed on the ground state of the X0 Ladical. All the harmonic and the diagonal cubic force constants have been calculated by thb force method of Pulay. From the force constants, vibrational frequexies have be