nˈoʊ pˈiːks fɔːɹ ˌɛmˈɛn tˈuː plˈʌs ˈaɪɑːnz wɜːɹ əbzˈɜːvd æt sˈɪkshˈʌndɹɪd fˈoːɹɾi sˈɪkshˈʌndɹɪd fˈoːɹɾi wˈʌn ˈiː vˈiː, wˌɪtʃ kənfˈɜːmd ðə fɔːɹmˈeɪʃən ʌv ˈoʊnli ðɪ ˌɛmˈɛn fˈoːɹ plˈʌs ˌɑːksɪdˈeɪʃən stˈeɪt wɪð ɐ dˈiː θɹˈiː ᵻlɛktɹˈɑːnɪk kənfˌɪɡjɚɹˈeɪʃən.
No peaks for Mn2+ ions were observed at 640–641 eV, which confirmed the formation of only the Mn4+ oxidation state with a d3 electronic configuration.