The search for protonated dihydrogen trioxide (HOOOH): insights from theory and experiment

Tell Tuttle, Janez Cerkovnik, Joze Koller, Bozo Plesnicar

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Protonated dihydrogen trioxide (HOOOH) has been postulated in various forms for many years. Protonation can occur at either the terminal (HOOO(H)H+) or central (HOOH(OH)+) oxygen atom. However, to date there has been no definitive evidence provided for either of these species. In the current work we have employed ab initio methods, CCSD(T) and MP2, with a large basis set (6-311++G(3df,3pd)) to determine the relative stabilities of these species. It is shown that the terminally protonated species is strongly favored relative to the centrally protonated species (ΔE ) 15.8 kcal/mol, CCSD(T)//MP2). The mechanism of formation of HOOO(H)H+ was determined to occur with a low barrier with the H3O+ occurring in a thermoneutral reaction (ΔE)-0.3 kcal/mol, CCSD(T)//MP2). Although HOOO(H)H+ exists as a stable intermediate, it is extremely short-lived and rapidly decomposes (ΔE* ) 8.6 kcal/mol, MP2) to H3O+ and O2(1Δg). The decomposition reaction is stabilized by solvent water molecules. The short-lived nature of the intermediate implies that the
intermediate species can not be observed in 17O NMR spectra, which has been demonstrated experimentally.
LanguageEnglish
Pages8003-8008
Number of pages6
JournalJournal of Physical Chemistry A
Volume114
Issue number30
Early online date9 Jul 2010
DOIs
Publication statusPublished - 2010

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Protonation
Nuclear magnetic resonance
Oxygen
Decomposition
Atoms
Molecules
Water
oxygen atoms
Experiments
decomposition
nuclear magnetic resonance
water
molecules
dihydrogen trioxide

Keywords

  • NMR chemical shifts
  • molecular-orbital methods
  • low temperature ozonation
  • gaussian basis sets
  • hydrogen trioxide

Cite this

Tuttle, Tell ; Cerkovnik, Janez ; Koller, Joze ; Plesnicar, Bozo. / The search for protonated dihydrogen trioxide (HOOOH) : insights from theory and experiment. In: Journal of Physical Chemistry A. 2010 ; Vol. 114, No. 30. pp. 8003-8008.
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The search for protonated dihydrogen trioxide (HOOOH) : insights from theory and experiment. / Tuttle, Tell; Cerkovnik, Janez; Koller, Joze; Plesnicar, Bozo.

In: Journal of Physical Chemistry A, Vol. 114, No. 30, 2010, p. 8003-8008.

Research output: Contribution to journalArticle

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