✦ LIBER ✦
Polymer electrolyte poly(ethylene oxide)/LiCF3SO3 studied by solid-state 13C NMR spectroscopy and ab initio calculations
✍ Scribed by Jiří Spěváček; Jiří Dybal
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 100 KB
- Volume
- 20
- Category
- Article
- ISSN
- 1022-1336
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✦ Synopsis
Solid-state 13 C NMR spectra and ab initio calculations of 13 C NMR chemical shifts show that poly(ethylene oxide) (PEO) carbons in complex with LiCF 3 SO 3 (both in crystalline and amorphous phase) are more shielded in comparison with neat PEO, due to the coordination to the Li + cation. The results obtained from 13 C NMR cross-polarization dynamics are in agreement with the published X-ray crystal structure of the PEO/LiCF 3 SO 3 complex. The mobility of PEO in the crystalline complex is lower than in neat crystalline PEO.