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Anisotropic nuclear spin interactions in H2O@C60 determined by solid-state NMR.
Concistrè, M; Mamone, S; Denning, M; Pileio, G; Lei, X; Li, Y; Carravetta, M; Turro, N J; Levitt, M H.
Afiliação
  • Concistrè M; School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, UK. mariac@soton.ac.uk
Philos Trans A Math Phys Eng Sci ; 371(1998): 20120102, 2013 Sep 13.
Article em En | MEDLINE | ID: mdl-23918716
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.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Philos Trans A Math Phys Eng Sci Assunto da revista: BIOFISICA / ENGENHARIA BIOMEDICA Ano de publicação: 2013 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Philos Trans A Math Phys Eng Sci Assunto da revista: BIOFISICA / ENGENHARIA BIOMEDICA Ano de publicação: 2013 Tipo de documento: Article