✍ Scribed by Martha S. Morales-Ríos; Humberto Cervantes-Cuevas; Irma Salgado-Escobar; Pedro Joseph-Nathan
No coin nor oath required. For personal study only.
The deuterium-induced 13C isotope shifts of 21 nitrogen-containing benzoheterocyclic systems labelled at the NH position were measured in
The compounds included bridged diphenylamines, ben-DMSO-d 6 . zolactams, 4-quinolinone, acridinones, carbazoles and indoles. The variations of two-bond isotope e †ects are discussed as a function of cross-conjugation of the NÈH(D) group and acidity of the NH proton.
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The secondary isotope shift in 13 C-nmr spectra in water was used to obtain information on the interactions of hydroxyl groups with their environment in polysaccharides. Specifically, the possibility of detecting the preference of intramolecular hydrogen bonding with respect to solvation was investi
Deuterium isotope effects on I3C nuclear shielding, "AC(OD), were investigated for a series of enolic /3-diketones at different temperatures. The investigated enolic B-diketones cover a broad range of tautomeric equilibrium constants (K). The equilibrium constants were estimated from ''0 and I3C che
## Abstract Unambiguous signal assignments in the ^13^C spectra of monodeuterated cyclooctanones derived from the lead tetraacetate or silver oxide/bromine oxidations of the corresponding 1‐monodeutero‐alcohols have been obtained from deuterium‐induced ^13^C isotope shifts and geminal and vicinal ^