Anderson's method of incorporation of C 60 within the cages of a VPI-5 zeolite has been used as well as a chemical vapor deposition procedure. 129 Xe NMR has confirmed that, starting from an organic solution of fullerene, C 60 , was actually incorporated into the molecular cages of the inorganic matrix. Thermal analysis and X-ray diffraction showed that the treatment does not affect the integrity of the crystalline structure of VPI-5. Photoluminescence experiments gave similar results as those already mentioned by other authors indicating the probable confinement effect of the inorganic matrix on the C 60 isolated molecules.