Homotropylidene and its bridge derivatives (e.g.bullvalene(l)) make a Cope rearrangement in a thermal process."s Recently much attention has been focused on these compounds from dynamic NMR spectroscopy 4,5 as well as synthetic and photochemical standpoints. 627 Moreover, in a theoretical field, th
Hydration state of gelatine studied by time domain nuclear magnetic resonance (TD-NMR): a preliminary study
β Scribed by M.C. Vachier; D.N. Rutledge
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 765 KB
- Volume
- 57
- Category
- Article
- ISSN
- 0308-8146
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High-resolution, solid-state "C-n.m.r. spectra of agarose, and kappa-and iota-carrageenans were recorded for various states, including anhydrous and hydrated powder, film, gel, and lyophilized gel. The "C-n.m.r. spectra varied substantially with the extent of hydration. Fully hydrated samples, as in