Tetrahedral approximation in normal coordinate calculations of high polymers
β Scribed by C.G. Opaskar; S. Krimm
- Publisher
- Elsevier Science
- Year
- 1965
- Weight
- 140 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0371-1951
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π SIMILAR VOLUMES
Norm&coordinate calculations are carried out on a simple model of a cross link in trans-polyacetylene (P-4)\_ The results indicate the need for a reanalysis of the presently accepted vibrational assignment of trans-PA and suzest the need for a more tborougb chemical study of purposely cross-linked P
## Manganese(V)do crystals of Bas(PO,)sCl (apatite structure) and Ca,VO,CI (spodiosite structure) exhibit highly resolved photoluminescence in the near-infrared. It is assigned to intraconfigurational 'E -+'A2 (Td notation) transitions, and the vibrational sideband structure is interpreted in term