𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Orbital Interactions and Their Effects on 13 C NMR Chemical Shifts for 4,6-Disubstituted-2,2-dimethyl-1,3-dioxanes. A Theoretical Study

✍ Scribed by Tormena, Cláudio F.; Dias, Luiz C.; Rittner, Roberto


Book ID
120586570
Publisher
American Chemical Society
Year
2005
Tongue
English
Weight
110 KB
Volume
109
Category
Article
ISSN
1089-5639

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


Substituent effects on 15N and 13C NMR c
✍ J. Hodge Markgraf; Lu Hong; David P. Richardson; Mark H. Schofield 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 110 KB

## Abstract The synthesis and assignment of ^15^N and ^13^C NMR signals of the 1,3,4‐oxathiazol‐2‐one ring in a series of __para__‐substituted 5‐phenyl derivatives are reported. DFT calculations of ^15^N and ^13^C chemical shifts correspond closely to observed values. Substituent effects are interp

The role of ?-type nonbonding orbitals f
✍ Kaupp, Martin; Malkina, Olga L.; Malkin, Vladimir G. 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 246 KB 👁 2 views

type nonbonding orbitals on heavy halogen or related substituents are largely responsible for significantly shielding spin᎐orbit-induced Ž . heavy-atom effects on nuclear magnetic resonance NMR chemical shifts of the neighboring atoms. This suggestion has been examined and confirmed by Ž . 13 densi