✦ LIBER ✦
An Investigation of Charge Effects on NMR. Coupling Constants. The Charge Induced Variation of s-Densities at the Nucleus
✍ Scribed by Roland W. Kunz
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- German
- Weight
- 694 KB
- Volume
- 63
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
The dependence of the ns‐density at the nucleus, | ψ ~ns~ (0) | ^2^, on atomic number and charge is examined for the elements helium to radon. The validity of the widely used assumption of a constant valence s‐density at the nucleus, as well as the statement that metal‐phosphorus NMR. coupling constants, ^1^J (M,P), are strongly influenced by contraction of the phosphorus 3 s orbital is critisized. A possible explanation by rehybridisation within an MO‐framework is offered instead.