The free acids and sodium salts of a series of sulphonated azobenzene dyestu โ s were examined in the solid and solution states by 13C and 15N NMR spectroscopy. In solution the spectra of both the free acids and salts are characteristic of trans-azobenzene structures, as are the spectra of the solid
โฆ LIBER โฆ
Nitrogen metabolism in Methanobacterium thermoautotrophicum: a solution and solid-state nitrogen-15 NMR study
โ Scribed by Choi, Byong Seok; Roberts, James E.; Evans, Jeremy N. S.; Roberts, Mary F.
- Book ID
- 127252116
- Publisher
- American Chemical Society
- Year
- 1986
- Tongue
- English
- Weight
- 695 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0006-2960
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A combination of XPS and solid-state N NMR have been used to characterize the nitrogen forms in a variety of different carbonaceous samples having high natural nitrogen abundance. It is currently difficult to unequivocally interpret and quantify individual 15 N NMR and XPS spectra. The advantages of