## Abstract __meso__‐and __dl__‐Diastereomers of a number of α,α′‐disubstituted succinic acids have been shown to give different ^13^C NMR chemical shifts. The results can be satisfactorily explained on the basis of their conformational analyses. A discussion of the observed chemical shifts is pres
High-field carbon-13 and proton NMR analysis of α,α-disubstituted poly(β-propiolactones)
✍ Scribed by Spassky, Nicolas; Leborgne, Alain; Hull, William E.
- Book ID
- 127277919
- Publisher
- American Chemical Society
- Year
- 1983
- Tongue
- English
- Weight
- 935 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0024-9297
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A ^13^ C NMR spectral study of 29 arylporphyrin derivatives is presented. In all of the tetrasubstituted and trisubstituted compounds examined the α- and β-carbons exhibited the expected broadened signals. In complete contrast, the diphenylporphyrins all showed sharp α- and β-carbon peaks which faci
In the above paper the following was omitted: Acknowledgements: The authors wish to thank the Wellcome Trust (049704) for financial support, and EPSRC Mass Spectrometry Service Swansea for analyses. SJS also thanks EPSRC for a studentship.