Nuclear shieldings, including the Fermi-contact and pseudocontact terms, have been calculated with density functional theory (DFT) (nonrelativistic and relativistic) methods in several Ru(III) complexes, thereby predicting 1 H and 13 C paramagnetic shifts. A fair agreement with experimental values i
Predicting the NMR spectra of nucleotides by DFT calculations: cyclic uridine monophosphate
✍ Scribed by Alessandro Bagno; Federico Rastrelli; Giacomo Saielli
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 382 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0749-1581
- DOI
- 10.1002/mrc.2204
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
We present an experimental and quantum chemical NMR study of the mononucleotide cyclic uridine monophosphate in water. Spectral parameters (^1^H and ^13^C chemical shifts and ^1^H^1^H, ^13^C^1^H, ^31^P^13^C and ^31^P^1^H spin‐spin coupling constants) have been carefully obtained experimentally and calculated using DFT methods including the solvent effect and the conformational flexibility of the solute. This study confirms that the ^1^H and ^13^C spectra of polar, flexible molecules in aqueous solution can be predicted with a high level of accuracy, comparable to that obtained for less complex systems. Copyright © 2008 John Wiley & Sons, Ltd.
📜 SIMILAR VOLUMES
1H NMR chemical shifts and coupling constants for several aromatic and aliphatic organic molecules have been calculated with DFT methods. In some test cases (furan, o-dichlorobenzene and n-butyl chloride) the performance of several functionals and basis sets has been analyzed, and the various contri
## Abstract According to the ^1^H, ^13^C and ^15^N NMR spectroscopic data and DFT calculations, the __E__‐isomer of 1‐vinylpyrrole‐2‐carbaldehyde adopts preferable conformation with the __anti__‐orientation of the vinyl group relative to the carbaldehyde oxime group and with the __syn__‐arrangement