Resonances in low-energy electron elastic scattering from Fullerenes C$_{\mathrm{60}}$ through C$_{\mathrm{92}}$

The electron affinity (EA) provides a stringent test of theory when the calculated and measured EAs are compared. A strong motivation for the fundamental investigations of low-energy electron elastic scattering from the selected fullerenes C$_{\mathrm{60}}$, C$_{\mathrm{70}}$, C$_{\mathrm{74}}$, C$_{\mathrm{80}}$, C$_{\mathrm{82}}$, C$_{\mathrm{84}}$ and C$_{\mathrm{92}}$ is the availability of high quality measured EAs [1, 2]. The Regge pole calculated electron elastic total cross sections for these fullerenes are found to be characterized generally by Ramsauer--Townsend (R-T) minima, shape resonances and dramatically sharp resonances manifesting stable negative ion formation. The extracted binding energies for the resultant anions agree excellently with the measured EAs of the fullerenes listed above, giving great credence to the Regge pole method and confirming that fullerenes behave like ``big atoms'' [3]. Common among all these fullerenes is the appearance of their ground state negative ions at their second R-T minima, similarly to the atomic Au case. 1. D.-L. Huang \textit{et al}, J. Chem. Phys. \textbf{140}, 224315 (2014) 2. O. V. Boltalina \textit{et al}, Rapid Commun. Mass Spectrom. \textbf{7}, 1009 (1993) 3. M. Ya Amusia, Chem. Phys. \textbf{414}, 168 (2013)