节点文献
Double Ionization to CO2 Produces Molecular Oxygen: A Roaming Mechanism
【摘要】 <正>Abiotic oxygen formation predates photosynthesis,sustaining early chemical evolution,yet its elementary mechanisms remain contested.Here,we show the production pathways for molecular oxygen from doubly ionized carbon dioxide upon electron-impact.Through fragment ions and electron coincidence momentum imaging,we unambiguously determine the ionization mechanism by measuring the projectile energy loss in association withthe C++O2+channel.
【关键词】 coincidence；
elementary；
Oxygen；
photosynthesis；
projectile；
momentum；
doubly；
dioxide；
ionization；
【基金】 supported by the National Natural Science Foundation of China (Grant Nos. 12325406, 92261201, 12404305, and W2512072);the Shaanxi Province Natural Science Fundamental Research Project (Grant Nos. 2023JC-XJ-03 and23JSQ013);the China Postdoctoral Science Foundation (Grant Nos. BX20240286 and 2024M7625)
- 【文献出处】 Chinese Physics Letters ,中国物理快报(英文版) , 编辑部邮箱 ,2026年01期
- 【分类号】TQ116.14