DOI: 10.1063/1.453581. Two-photon photodissociation dynamics of state-selected NO2

Two-photon photodissociation dynamics of state-selected NO2

10.1063/1.453581

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

Quantum states of NO2 are selected and then photodissociated by resonant two-photon photoexcitation. The total photolysis energy is scanned over a region from 50 cm−1 below to 300 cm−1 above the threshold for production of NO(X̃ 2Π)+O(1D). This channel yielding excited oxygen is observed to dominate the production of vibrational ground state NO. Diatomic product J and Λ doublet state distributions are probed by resonant two-photon ionization. The photodissociation cross section for production of specific NO quantum states is found to be structured in the photolysis wavelength. This structure is assigned to intermediate resonance in the two-photon photolysis. Rotational structure is identified in this pattern, and confirmed by separate optical–UV–double resonance spectroscopy using the same intermediate states in combination with levels of the 3pσ 2Σ+u Rydberg state of NO2. Though photodissociation dynamics are found to be a very sensitive function of photolysis wavelength, different wavelengths that promote different transitions through the same intermediate state yield very similar dynamics. The existence and apparent patterns of photoselection in the product state dynamics are discussed in the light of recent theoretical developments incorporating electronic degrees of freedom in state-to-state photofragmentation.

Bibliography

Bigio, L., & Grant, E. R. (1987). Two-photon photodissociation dynamics of state-selected NO2. The Journal of Chemical Physics, 87(1), 360â369.

Authors 2

Laurence Bigio (first)
Edward R. Grant (additional)

References 54 Referenced 29

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Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 9:10 a.m.)
Deposited	1 year, 6 months ago (Feb. 10, 2024, 1:24 a.m.)
Indexed	1 year, 1 month ago (Aug. 2, 2024, 3:51 a.m.)
Issued	38 years, 2 months ago (July 1, 1987)
Published	38 years, 2 months ago (July 1, 1987)
Published Print	38 years, 2 months ago (July 1, 1987)

Funders 0

None

BibTeX

@article{Bigio_1987, title={Two-photon photodissociation dynamics of state-selected NO2}, volume={87}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.453581}, DOI={10.1063/1.453581}, number={1}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Bigio, Laurence and Grant, Edward R.}, year={1987}, month=jul, pages={360–369} }

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  "URL": "http://dx.doi.org/10.1063/1.453581",
  "relation": {},
  "ISSN": [
    "0021-9606",
    "1089-7690"
  ],
  "subject": [],
  "published-other": {
    "date-parts": [
      [
        1987,
        7,
        1
      ]
    ]
  },
  "published": {
    "date-parts": [
      [
        1987,
        7,
        1
      ]
    ]
  }
}