<prompt> Yini engaphelele? Njengoba kunikezwe umbuzo odlule, bhala umongo onempendulo yawo. Kungaba imisho engu-1 kuya kwengu-20. Umongo:  <response>: Lokhu kuhlanganiswa kokukhansela kanye nokugqagqana kwe-σ ne-π kuholela ekutheni i-dioxygen ibe nesibopho esiphindwe kabili futhi isebenze, kanye nesimo esiyisisekelo se-triple electronic. Ukuhlelwa kwama-electron ngama-electron amabili angahlanganisiwe njengoba atholakala ku-dioxygen bheka ama-orbitals e-π agcwalisiwe esithombeni, ama-orbitals anamandla alinganayo, okungukuthi, i-degenerate, ukuhlelwa okubizwa ngokuthi isimo se-spin triplet. Ngakho-ke, isimo esiyisisekelo se-molecule ye-O2 sibizwa ngokuthi i-oxygen kathathu. Amandla aphakeme kakhulu, ama-orbitals agcwele ngokwengxenye yi-antibonding, ngakho-ke ukugcwaliswa kwawo kubuthaka i-bond order kusuka kokuthathu kuya kokubili. Ngenxa yama-electron ayo angahlangene, i-oxygen enama-triplets isabela kancane kuphela kuma-molecule amaningi aphilayo, anama-electron spin ahlangene; lokhu kuvimbela ukusha okuzenzakalelayo. 