Electron spin density distribution in the polymer phase of CsC60: Assignment of the NMR spectrum

We present high resolution Cs-133-C-13 double resonance NMR data and C-13-C -13 NMR correlation spectra of C-13 enriched samples of the polymeric phase of CsC60. These data lead to a partial assignment of the lines in the C-13 NMR spectrum of CSC60 to the carbon positions on the C-60 molecule. A plau sible completion of the assignment can be made on the basis of an ab initio calculation, The data support the view that the conduction electron densit y is concentrated at the C60 "equator," away from the interfullerene bonds.