𝔖 Bobbio Scriptorium
✦   LIBER   ✦

ChemInform Abstract: Empirical Investigation on the Reproducibility of 13C NMR Shift Values.

✍ Scribed by Michael Grzonka; Antony N. Davies

Publisher
John Wiley and Sons
Year
2010
Weight
27 KB
Volume
30
Category
Article
ISSN
0931-7597

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Diazanaphthalenes: A 13C NMR investigati
Diazanaphthalenes: A 13C NMR investigation on the site of protonation and pKa values
✍ Peter van de Weijer; Hans Thijsse; Douwe van der Meer 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 English ⚖ 472 KB

## Abstract The pH dependence of the ^13^C chemical shifts (δ) of the diazanaphthalenes has been recorded. From this dependence the p__K__~__a__~ values have been determined using the Henderson‐Hasselbach equation. The change in ^13^C chemical shifts under the influence of nitrogen protonation (Δδ)

Dependence of 13C NMR methoxy substituen
Dependence of 13C NMR methoxy substituent chemical shift values on π-bond orders of fused aromatic compounds
✍ Pedro Joseph-Nathan; Cirilo García-Martínez; Martha S. Morales-Ríos 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 314 KB

## Abstract The substituent chemical shift values induced by the methoxy group at the two __ortho__ positions of aromatic compounds which include naphthalenes, quinolines, indoles, coumarins, flavones and benzofurans were linearly correlated with π‐bond orders, affording the equation Δδ~__ortho__~(

Substituent effects on the 13C NMR chemi
Substituent effects on the 13C NMR chemical shifts of 1-hydroxyalkylphosphonic acids
✍ Zdzisław Glowacki; Maria Hoffmann 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 208 KB

## Abstract ^13^C chemical shifts and ^31^P,^13^C coupling constants are reported for nine 1‐hydroxyalkylphosphonic and two additional phosphonic acids. The α‐substituent‐induced chemical shifts (α‐SCS) of the phosphonate group were calculated and their non‐additivity was observed. Good linear corr