二氧基盐
二氧基盐指含有二氧基阳离子（O2）的一类不多见的化合物，氧的氧化态为+1/2。该离子由氧气失电子得到：
- O2 → O2 + e
以上的反应需要很大的能量，约为1165kJ/mol，即氧气分子的电离能。
Dioxygenyl
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Dioxygenyl 二氧基盐
The dioxygenyl ion, O+
2, is a rarely-encountered oxycation in which both oxygen atoms have a formal oxidation state of +⁄2. It is formally derived from oxygen by the removal of an electron:
The energy change for this process is called the ionization energy of the oxygen molecule. Relative to most molecules, this ionization energy is very high at 1175 kJ/mol. As a result, the scope of the chemistry of O+
2 is quite limited, acting mainly as a 1-electron oxidiser.
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