Vibrational properties of two fullerene derivatives: C-60 TZ-OT-5 (1) and C60BTH-DH (2) have been studied using infrared absorption and Raman scattering spectroscopies. Additionally, quantum chemical calculations of the equilibrium geometry and normal mode vibrations of these functionalized fullerenes were performed. For comparison, characteristic vibrations of similar functionalized fullerenes studied previously has been analyzed. It was stated that despite of distinct structural differences between the investigated molecules, their experimental spectra are quite similar and correspond well with the calculated ones. (C) 2014 Elsevier B.V. All rights reserved.