Orientations of the principal components of electric field gradients and internal motions in dihydrogen ligands from the 2H T1 NMR relaxation data in solution
Copyright 2003 John Wiley & Sons, Ltd.
| Publié dans: | Magnetic resonance in chemistry : MRC. - 1985. - 42(2004), 1 vom: 15. Jan., Seite 66-70 |
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| Auteur principal: | |
| Format: | Article |
| Langue: | English |
| Publié: |
2004
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| Accès à la collection: | Magnetic resonance in chemistry : MRC |
| Sujets: | Journal Article Ligands Metals, Heavy Organometallic Compounds Solutions Hydrogen 7YNJ3PO35Z Deuterium AR09D82C7G |
| Résumé: | Copyright 2003 John Wiley & Sons, Ltd. The deuterium spin-lattice relaxation times in (D2) ligands of W, Ru and Os complexes are reviewed and analyzed in terms of the fast internal (D2) motions: free rotation, librations and 180 degrees jumps. The analysis was performed using quadrupolar coupling constant (DQCC) parameters taken from the solid-state 2H NMR spectra and density function theory calculations. It is shown that the calculated DQCC values can be corrected for further use in interpretations of deuterium relaxation times for Ru and Os dihydrogen complexes. The resulting data led to a criterion for using the relaxation data to distinguish fast-spinning dihydrogen ligands. It is shown that the principal components of electric field gradient tensors at D in the dihydrogen ligands are oriented closer to M-D directions |
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| Description: | Date Completed 11.04.2005 Date Revised 21.11.2013 published: Print Citation Status MEDLINE |
| ISSN: | 1097-458X |