Measurements of molecular fragment alignment and orientation in the UV photodissociation of NO2 and O-3
REMPI-TOF studies of the UV photodissociation of NO2 and O 3 at 320 nm and 270 nm respectively have allowed both the orientation and alignment parameters of the molecular photofragments to be determined. The orientation parameter, β02(21), for the NO(X2Π, ν = 0) fragment is found to be essentially t...
| Główni autorzy: | , , , |
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| Format: | Journal article |
| Język: | English |
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2003
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| _version_ | 1826281431352999936 |
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| author | Hancock, G Pearson, P Ritchie, G Tibbetts, D |
| author_facet | Hancock, G Pearson, P Ritchie, G Tibbetts, D |
| author_sort | Hancock, G |
| collection | OXFORD |
| description | REMPI-TOF studies of the UV photodissociation of NO2 and O 3 at 320 nm and 270 nm respectively have allowed both the orientation and alignment parameters of the molecular photofragments to be determined. The orientation parameter, β02(21), for the NO(X2Π, ν = 0) fragment is found to be essentially the same for the three quantum states, N = 29, 30 and 40 with a value of 0.24 ± 0.04 (2σ), as probed via (1 + 1′) REMPI, on the A 2Σ+ (ν = 0) ← X2Π Ω (ν = 0) transition. The O2 (a 1Δg ν = 0 J = 20) fragment shows a markedly larger orientation parameter, for example β02(21) = 0.55 ± 0.04, measured on the S(20) transition. These orientation parameters and the accompanying alignment parameters which describe the fragments' angular momentum polarisation have been used to confirm spectral assignments within the highly perturbed (2 + 1) d 1Π g(ν = 2) ←← a 1Δg (ν = 0) REMPI spectrum of O2. |
| first_indexed | 2024-03-07T00:28:42Z |
| format | Journal article |
| id | oxford-uuid:7f0825a5-975a-4ab4-9e13-723628f1884f |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:28:42Z |
| publishDate | 2003 |
| record_format | dspace |
| spelling | oxford-uuid:7f0825a5-975a-4ab4-9e13-723628f1884f2022-03-26T21:14:03ZMeasurements of molecular fragment alignment and orientation in the UV photodissociation of NO2 and O-3Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7f0825a5-975a-4ab4-9e13-723628f1884fEnglishSymplectic Elements at Oxford2003Hancock, GPearson, PRitchie, GTibbetts, DREMPI-TOF studies of the UV photodissociation of NO2 and O 3 at 320 nm and 270 nm respectively have allowed both the orientation and alignment parameters of the molecular photofragments to be determined. The orientation parameter, β02(21), for the NO(X2Π, ν = 0) fragment is found to be essentially the same for the three quantum states, N = 29, 30 and 40 with a value of 0.24 ± 0.04 (2σ), as probed via (1 + 1′) REMPI, on the A 2Σ+ (ν = 0) ← X2Π Ω (ν = 0) transition. The O2 (a 1Δg ν = 0 J = 20) fragment shows a markedly larger orientation parameter, for example β02(21) = 0.55 ± 0.04, measured on the S(20) transition. These orientation parameters and the accompanying alignment parameters which describe the fragments' angular momentum polarisation have been used to confirm spectral assignments within the highly perturbed (2 + 1) d 1Π g(ν = 2) ←← a 1Δg (ν = 0) REMPI spectrum of O2. |
| spellingShingle | Hancock, G Pearson, P Ritchie, G Tibbetts, D Measurements of molecular fragment alignment and orientation in the UV photodissociation of NO2 and O-3 |
| title | Measurements of molecular fragment alignment and orientation in the UV photodissociation of NO2 and O-3 |
| title_full | Measurements of molecular fragment alignment and orientation in the UV photodissociation of NO2 and O-3 |
| title_fullStr | Measurements of molecular fragment alignment and orientation in the UV photodissociation of NO2 and O-3 |
| title_full_unstemmed | Measurements of molecular fragment alignment and orientation in the UV photodissociation of NO2 and O-3 |
| title_short | Measurements of molecular fragment alignment and orientation in the UV photodissociation of NO2 and O-3 |
| title_sort | measurements of molecular fragment alignment and orientation in the uv photodissociation of no2 and o 3 |
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