We report a 13C DNP NMR study of the organic conductor fluoranthenyl (FA) radical cation salt (FA),f PF; We have been able to suppress the Knight shift by saturating the ESR line. Overhauser enhancements achieved were large enough to detect lOi carbons after 1 s of microwave saturation.
✦ LIBER ✦
13C knight shift saturation and 1H dynamic nuclear polarization in a polycrystalline sample of the organic conductor (fluoranthenyl)2PF6
✍ Scribed by Robert A. Wind; Herman Lock; Michael Mehring
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 477 KB
- Volume
- 141
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
It is demonstrated that the "C Knight shift in the organic conductor ( fluoranthenyl),PF, can be reduced by saturating the conduction electron ESR line with microwave irradiation. It is also found that microwave irradiation leads to a nuclear polarization enhancement due to the Overhauser effect. The measurements have been used to separate the "C Knight shift and the ordinary chemical shift.
📜 SIMILAR VOLUMES
High-resolution 13C DNP NMR and 13C knig
✍
W. Stöcklein; H. Seidel; D. Singel; R.D. Kendrick; C.S. Yannoni
📂
Article
📅
1987
🏛
Elsevier Science
🌐
English
⚖ 510 KB