Influence of chemical exchange on the temperature dependence of Eu(fod)3-induced shifts
β Scribed by Yu. Yu. Samitov; Sh. S. Bikeev
- Publisher
- John Wiley and Sons
- Year
- 1975
- Tongue
- English
- Weight
- 270 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0749-1581
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Proton NMR data for a number of l-.IZ-4-Y-3,5-dimethylbenzenc?s and l-X-2-Y-4-Z-3,5-dimethylbenzenc?s are presented. The proton chemical shifts of the methyl groups at positions 3 and 5 are mainly affected by the ring current effect of the snbstituents. Thii conclusion was strongly supported by the