Solid state high resolution 13C NMR has been used to investigate the physical properties of pristine C60 after intercalation with molecular oxygen. By studying the dipolar and hyperfine interactions between Curie type paramagnetic oxygen molecules and 13C nuclei we have shown that neither chemical bonding nor charge transfer results from the intercalation. The O2 molecules diffuse inside the solid C60 and occupy the octahedral sites of the fcc crystal lattice. The presence of oxygen does not affect the fast thermal reorientation of the nearest C60 molecules. Using Magic Angle Spinning we were able to separate the dipolar and hyperfine contributions to 13C NMR spectra, corresponding to buckyballs adjacent to various numbers of oxygen molecules.
@article{arxiv.cond-mat/9504106,
title = {High Resolution 13C NMR study of oxygen intercalation in C60},
author = {P. Bernier and I. Luk'yanchuk and Z. Belahmer and M. Ribet and L. Firlej},
journal= {arXiv preprint arXiv:cond-mat/9504106},
year = {2009}
}
Comments
4 pages, revtex file, figures available upon request from [email protected]