Proton NMR study of two tetradehydrocyclodecabiphenylenes
β Scribed by Wilcox, Charles F.; Weber, Karl A.
- Book ID
- 126058671
- Publisher
- American Chemical Society
- Year
- 1986
- Tongue
- English
- Weight
- 886 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0022-3263
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π SIMILAR VOLUMES
## Abstract The scalar coupled proton NMR spectra of many organic molecules possessing more than one phenyl ring are generally complex due to degeneracy of transitions arising from the closely resonating protons, in addition to several shortβ and longβrange couplings experienced by each proton. Ana
Sequence length of ethylene oxide and the amount of end groups in polyacetal copolymers were determined using proton NMR. Peaks from ethylene oxide usually appear in the region from 3.5 to 3.8 ppm, when tetramethylsilane was used as the internal standard. These peaks were divided into three triad se