Vibrations of bromofullerene C60Br24: C60 cage confined into static bromine sphere

The IR and Raman spectra of the bromofullerene C60Br24 were thoroughly studied and assigned on the base of Hartree–Fock ab initio calculations. A complete interpretation of the spectra is proposed within a conventional potential energy distribution analysis as well as employing the projection technique to follow the genetic relationships of the carbon cage vibrations in C60Br24 molecule with those in parent C60. Such analysis has shown that the vast majority of bromofullerene vibrations could be regarded as the vibrations of its carbon skeleton stringed inside a motionless sphere of bromine atoms.