✦ LIBER ✦

Studies based on deuterium isotope effect on 13C chemical shifts

✍ Scribed by T. Dziembowska; P.E. Hansen; Z. Rozwadowski

Book ID: 108246263
Publisher: Elsevier Science
Year: 2004
Tongue: English
Weight: 669 KB
Volume: 45
Category: Article
ISSN: 0079-6565
DOI: 10.1016/j.pnmrs.2004.04.001

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Studies Based on Deuterium Isotope Effec

Studies Based on Deuterium Isotope Effect on 13C Chemical Shifts

✍ T. Dziembowska; P. E. Hansen; Z. Rozwadowski 📂 Article 📅 2005 🏛 John Wiley and Sons ⚖ 58 KB 👁 1 views

Proton transfer equilibrium in Schiff ba

Proton transfer equilibrium in Schiff bases derived from 5-nitrosalicylaldehyde. a study of deuterium isotope effects on 13C NMR chemical shifts

✍ Zbigniew Rozwadowski; Teresa Dziembowska 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 102 KB 👁 2 views

The proton transfer equilibrium in series of Schi † bases derived from 5-nitrosalicylaldehyde and aliphatic amines was investigated by means of variable-temperature NMR spectra and the deuterium isotope e †ect on 13C NMR chemical shifts.

NMR study of proton transfer equilibrium

NMR study of proton transfer equilibrium in Schiff bases derived from 2-hydroxy-1-naphthaldehyde and 1-hydroxy-2-acetonaphthone. Deuterium isotope effects on 13C and 15N chemical shifts

✍ T. Dziembowska; Z. Rozwadowski; A. Filarowski; P. E. Hansen 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 170 KB

Deuterium isotope effects on 13C chemica

Deuterium isotope effects on 13C chemical shifts of nitromalonamide

✍ Poul Erik Hansen 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 154 KB

## Abstract The OH chemical shift of the enol form of nitromalonamide is found at 18.9 ppm both in DMSO‐__d__~6~ and in DMF‐__d__~7~ indicating a very strong hydrogen bond. The OH chemical shift is insensitive to temperature changes. Contrary to the large OH chemical shift, a small two‐bond deuteri

Deuterium Isotope Effects on 13C Chemica

Deuterium Isotope Effects on 13C Chemical Shifts in cis-Stilbene

✍ Z. Meić; P. Novak; D. Vikić-Topić; V. Smrećki 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 574 KB

Over 100 isotope effects on "C chemical shifts were determined in a series of deuteriated cis-stilbene isotopomers. The magnitude and sign of these effects depend on the position and the number of deuterium atoms in the molecule. The variations in two-and three-bond effects were rationalized by ste

Deuterium Isotope Effects on13C NMR Chem

Deuterium Isotope Effects on13C NMR Chemical Shifts of Amides

✍ Ronald M. Jarret; Ny Sin; Matthew Dintzner 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 46 KB

Exchange of amide protons with deuterium results in changes of 13 C chemical shifts for carbon atoms near the site of substitution (CH{N and N{C|O). There is a measurable decrease in the isotopic shifts of CH{N for cycloalkylacetamides as ring size increases from 3 to 8 and for lactams as ring size