The C61H2 fulleroid is treated by means of the AM1 quantum-chemical me
thod. Full geometry optimization of its C2v structure is performed tog
ether with vibrational harmonic analysis. The computed length of the C
-C bond between two cage-hexagons bridged by the tetrahedral C atom is
1.579 angstrom. Vibrational frequencies and their IR intensities are
reported.