The influence of different model intestinal phases (modelled on those likely to be produced in vivo after the digestion of commonly used formulation lipids) on the absorption profile of cinnarizine has been studied. Combinations of C8, C12, or C18:1 fatty acid and monoglyceride and simulated endogen
On the relation between a common gauge origin formulation and the GIAO formulation of the NMR shielding tensor
β Scribed by Georg Schreckenbach
- Publisher
- Springer
- Year
- 2002
- Tongue
- English
- Weight
- 136 KB
- Volume
- 108
- Category
- Article
- ISSN
- 1432-2234
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## Abstract In the acetylenic aldehyde oximes with substituents containing silicon and germanium, the ^13^C NMR signal of the Cβ2 carbon of triple bond is shifted by 3.5 ppm to lower frequency and that of the Cβ3 carbon is moved by 7 ppm to higher frequency on going from E to Z isomer. A greater lo
A general formulation for discrete-time quantum mechanics, based on Feynman's method in ordinary quantum mechanics, is presented. It is shown that the ambiguities present in ordinary quantum mechanics (due to noncommutativity of the operators), are no longer present here. Then the criteria for the u
This article deals with the calculation of the shielding tensor of nuclear magnetic Ε½ . resonance NMR spectroscopy based on a scalar relativistic two-component Pauli-type Hamiltonian. A complete formulation of the method within the framework of the gauge Ε½ . including atomic orbitals GIAO is given.