## Abstract The proton magnetic resonance spectrum of diethylmethylvinylammonium bromide, in which splittings due to ^14^N, ^1^H spin couplings are clearly observed as strongly perturbed secondโorder patterns, has been analysed and the difference in the substituent effect between a methyl and an et
14N-H spin couplings in pyrazine methiodides
โ Scribed by Toshio Goto; Minoru Isobe; Masako Ohtsuru; Kazuo Tori
- Book ID
- 104249569
- Publisher
- Elsevier Science
- Year
- 1968
- Tongue
- French
- Weight
- 171 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0040-4039
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๐ SIMILAR VOLUMES
## Abstract We report the determination of twoโ and threeโbond ^1^Hโ^15^N spinโspin couplings in the nmr spectra of a polypeptide. The ^1^Hโ and ^15^Nโnmr spectra of 99.2% ^15^Nโenriched alumichrome have been studied at 360 MHz and 10.1 MHz, repectively. While some ^2^__J__ and ^3^__J__ coupling ar
The intensity distribution in progressions of the big mode observed in phosphcrescence and phosphorescence-excitation spectra of p) mzine is interprered m terms of a model mvohin~ vrbronic couplin: in both singlet and triplet manifolds mediated by spin-orbit coupling. Pyrazine has been used repeated