A CASSCF/CSAPT2 Study on the Reaction Pathways From HOSS to HSSO Radicals Haifeng Zhang, Jiubo Cui, Weiwei Pei and Dongfang Wang E3S Web Conf., 165 (2020) 05025 Published online: 01 May 2020 DOI: 10.1051/e3sconf/202016505025