Reactions between C-60 and FeCl3 were carried out with and without Cl-2 gas. Chlorinated C-60 was also produced. The product C-60(FeCl3)(2) formed with Cl-2 gas in the sample preparation was a black insulating powder inside and outside the dry box. Infrared (IR) spectroscopy showed that, when C-60(FeCl3)(2) is exposed to air, FeCl3 leaves the sample and C-60 remains. Coherent (Bragg) X-ray diffraction was not observed from C-60(FeCl3)(2) although polycrystalline C-60 was used in the reaction. For the product from the reaction between C-60 and FeCl3 without Cl-2 gas, only very weak IR absorption lines from C-Cl bonding were observed, and the X-ray diffraction pattern showed FeCl3 and C-60 peaks. This shows that C-60 does not react well with FeCl3 without Cl-2 gas in the sample preparation. Thus, Cl-2 gas enhances the reaction between C-60 and FeCl3, produces a noncrystalline product, and is not responsible for the conductivity in chlorinated C-60 compounds.