${\mathrm{C}}_{28}:$ A possible room temperature organic superconductor

The electron-phonon coupling in fullerene ${\mathrm{C}}_{28}$ has been calculated from first principles. The value of the associated coupling constant $\lambda /N\left(0\right)\mathrm{}$ is found to be a factor 3.4 larger than that associated with ${\mathrm{C}}_{60}.$ Assuming similar values of the density of levels at the Fermi surface $N\left(0\right)\mathrm{}$ and of the Coulomb pseudopotential ${\mu }^{*}$ for ${\mathrm{C}}_{28}$-based solids as those associated with alkali doped fullerides $A_3{\mathrm{C}}_{60},$ one obtains $T_c\left({\mathrm{C}}_{28}\right)\approx {8T}_c\left({\mathrm{C}}_{60}\right).\mathrm{}$