S1 Doubly and Triply Charged Species Formed from Chlorobenzene Reveal Unusual C-Cl Multiple Bonding Felipe Fantuzzi 1 , Benedikt Rudek 2 , Wania Wolff 3,* , Marco A. C. Nascimento 1,* 1 Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-909, Brazil. 2 Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany. 3 Instituto de Física, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-972, Brazil. * email: wania@if.ufrj.br ; chaer01@gmail.com Phone: +55 21 3938.7563 Fax: +55 21 3938.7265 Supporting Information Energy, structure and vibrational frequencies of C 6 H 5 Cl 2+ and C 6 H 5 Cl 3+ isomers