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The vibronic coupling constants of C$_{60}^-$ are derived from thephotoelectron spectrum measured by Wang {\it et al}. [X. B. Wang, H. K. Woo,and L. S. Wang, J. Chem. Phys., {\bf 123}, 051106 (2005).] at low temperaturewith high-resolutions. We find that the couplings of the Jahn-Teller modes ofC$_{60}^-$ are weaker than the couplings reported by Gunnarsson {\it et al}.[O. Gunnarsson, H. Handschuh, P. S. Bechthold, B. Kessler, G. Gantef{\"{o}}r,and W. Eberhardt, Phys. Rev. Lett., {\bf 74}, 1875 (1995).]. The totalstabilization energy after $h_g$ and $a_g$ modes is reduced with respect to theprevious derivation of Gunnarsson {\it et al}. by 30 \%. The computed vibroniccoupling constants using DFT with B3LYP functional agree well with the newexperimental constants, so the discrepancy between theory and experimentpersistent in the previous studies is basically solved.

Vibronic coupling in C$_{60}^-$ anion revisited: Precise derivations from photoelectron spectra and DFT calculations