Experimental Detection of Hydrogen Trioxide

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Science  02 Jul 1999:
Vol. 285, Issue 5424, pp. 81-82
DOI: 10.1126/science.285.5424.81

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Hydrogen trioxide (HO3) has long been postulated as a key intermediate in important atmospheric processes but has proved difficult to detect. The molecule was unequivocally detected in experiments based on neutralization-reionization and neutralization-reionization/collisionally activated dissociation mass spectrometry, using protonated ozone (HO3 +) as the charged precursor. Hydrogen trioxide is a relatively stable species and has a H-O-O-O connectivity and a lifetime exceeding 10–6 seconds at ambient temperature.

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