Besides the elastic constants calculated to infer the mechanical stabilities and hardness, further calculations of phonon dispersion curves were also carried out to verify the dynamic stability of new carbon allotropes. In the present work, the phonon modes were computed considering the harmonic approximation via finite displacements of the atoms around their equilibrium positions to obtain the forces from the summation over the different configurations. The phonon dispersion curves along the direction of the Brillouin zone are subsequently obtained using "Phonopy" interface code based on Python language . Thermodynamic properties such as the Helmholtz free energy, the heat capacity C v and the entropy S, were calculated as functions of temperature.