Photodissociation dynamics of O3− at 523 nm

Garner, M. C.; Sherwood, Christopher R.; Hanold, K.; Continetti, Robert E.

doi:10.1016/0009-2614(95)01303-2

Cited by 12 publications

(5 citation statements)

References 27 publications

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“…The estimated uncertainty in the N ( E T ,eKE) peak positions is ±0.03 eV. The contours extend over the maximum translational energy limit for ν = 0, indicating the production of some internally excited O 3 - in the ion source 4 …”

Section: Resultsmentioning

confidence: 87%

“…The contours extend over the maximum translational energy limit for ν ) 0, indicating the production of some internally excited O 3 -in the ion source. 31 There are four prominent peaks evident in the contours of the correlation spectra (Figure 4). In the horizontal polarization (Figure 4A) the three peaks (a-c, see Table 1) are arrayed along the translational energy limit corresponding to ground-state products.…”

Section: Correlation Spectramentioning

confidence: 99%

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Stability and Dissociation Dynamics of the Low-Lying Excited States of Ozone

et al. 1997

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This paper reports an investigation of the stability and dissociation dynamics of the low-lying singlet and triplet states of ozone (O3) using coincident photoelectron and photofragment translational spectroscopy. These experiments provide an upper limit of 0.5 μs for the lifetime of the low-lying excited states of O3. The 3A2 and 3B2 states dissociate with nearly all available energy appearing in translation. Dissociation of the higher-lying 3B1 and 1A2 states produces rotationally and possibly vibrationally excited O2 products. The product translational energy distributions indicate that the 3B1 state dissociates nonadiabatically to ground-state O(3P) + O2(3Σg -) products.

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Section: Resultsmentioning

confidence: 87%

Section: Correlation Spectramentioning

confidence: 99%

Stability and Dissociation Dynamics of the Low-Lying Excited States of Ozone

et al. 1997

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“…A brief description of photofragmentation studies with this apparatus has been previously published. 27 The fast-beam photofragment translational spectrometer is similar to that used by Neumark and co-workers to study the photodissociation of neutral-free radicals. 28…”

Section: Methodsmentioning

confidence: 99%

Translational spectroscopy studies of the photodissociation dynamics of O−4

Sherwood

Hanold

Garner

et al. 1996

The Journal of Chemical Physics

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An investigation of the photodissociation dynamics of the dimer anion O 4 Ϫ at 523.6, 349.0, and 261.8 nm is reported. Product translational energy and angular distributions have been obtained using photofragment translational spectroscopy in a fast ion beam. At all wavelengths photodissociation ͑O 4 Ϫ ϩh→O 2 ϩO 2 Ϫ ͒ is observed to proceed via a rapid parallel electronic transition, with the photofragment angular distribution strongly peaked along the laser electric vector. The lowest energy photodissociation channel produces O 2 (a 1 ⌬ g) and ground state O 2 Ϫ (X 2 ⌸ g), indicating that O 4 Ϫ is a doublet anion. The partitioning of energy in the dissociation reveals a complicated wavelength dependence.

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“…2 As such, numerous experimental and theoretical efforts have focused on characterizing the photochemistry of O 3 − in both gaseous [3][4][5][6][7][8] and aqueous 9, 10 environments. Recently, the interactions of ozonide with water and other species important in the troposphere have been implicated in models as a possibly significant contributor to ion-induced nucleation leading to the formation of atmospheric aerosols.…”

Section: Introductionmentioning

confidence: 99%

Visible spectrum photofragmentation of O3−(H2O)n, n ≤ 16

Lehman

Lineberger

2014

The Journal of Chemical Physics

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Photofragmentation of ozonide solvated in water clusters, O3(-)(H2O)n, n ≤ 16, has been studied as a function of photon energy as well as the degree of solvation. Using mass selection, the effect of the presence of the solvent molecule on the O3(-) photodissociation process is assessed one solvent molecule at a time. The O3(-) acts as a visible light chromophore within the water cluster, namely the O3(-)(H2O) total photodissociation cross-section exhibits generally the same photon energy dependence as isolated O3(-) throughout the visible wavelength range studied (430-620 nm). With the addition of a single solvent molecule, new photodissociation pathways are opened, including the production of recombined O3(-). As the degree of solvation of the parent anion increases, recombination to O3(-)-based products accounts for close to 40% of photoproducts by n = 16. The remainder of the photoproducts exist as O(-)-based; no O2(-)-based products are observed. Upper bounds on the O3(-) solvation energy (530 meV) and the O(-)-OO bond dissociation energy in the cluster (1.06 eV) are derived.

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Photodissociation dynamics of O3− at 523 nm

Cited by 12 publications

References 27 publications

Stability and Dissociation Dynamics of the Low-Lying Excited States of Ozone

Stability and Dissociation Dynamics of the Low-Lying Excited States of Ozone

Translational spectroscopy studies of the photodissociation dynamics of O−4

Visible spectrum photofragmentation of O3−(H2O)n, n ≤ 16

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