| Autor: |
M, Concistrè, S, Mamone, M, Denning, G, Pileio, X, Lei, Y, Li, M, Carravetta, N J, Turro, M H, Levitt |
| Rok vydání: |
2013 |
| Zdroj: |
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences. 371(1998) |
| ISSN: |
1364-503X |
| Popis: |
We report a solid-state NMR study of the anisotropic nuclear spin interactions in H₂O@C₆₀ at room temperature. We find evidence of significant dipole-dipole interactions between the water protons, and also a proton chemical shift anisotropy (CSA) interaction. The principal axes of these interaction tensors are found to be perpendicular. The magnitude of the CSA is too large to be explained by a model in which the water molecules are partially aligned with respect to an external axis. The evidence indicates that the observed CSA is caused by a distortion of the geometry or electronic structure of the fullerene cages, in response to the presence of the endohedral water. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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