 |
| Titel |
Ultraviolet Spectroscopy of 32S, 33S, 34S and 36S Sulphur Dioxide: Absorption Cross Sections in the 250-330 nm and the isotopic fractionations of the SO2* reaction. |
| VerfasserIn |
Sebastian Danielache, Shohei Hattori, Matthew Johnson, Yuichiro Ueno, Naohiro Yoshida |
| Konferenz |
EGU General Assembly 2011
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250049719
|
|
|
|
|
|
| Zusammenfassung |
| We present the measurement of the ultraviolet absorption cross sections of 32SO2,
33SO2,34SO2 and the first measurements of the 36SO2 isotopologue recorded between 40,000
and 30,300 cm-1 (250 to 330 nm) at 293 K with a resolution of 8 cm-1. The measured
spectrum replicates our previous data and also spectra in the literature for the 32S
isotopologue. The main source of error is the standard deviation of the measurements
themselves while the root-mean-square of other sources of error is in average less than 10%.
The rich vibrational structure and the positions and widths of the peaks change with
isotopic substitution in a complex fashion but reproduces our previously published
measurements.
The results imply that the total accumulated energy of the formed SO2* fragment is not
mass dependent and therefore the subsequent chemistry may produce previously unexpected
mass independent fractionations. |
|
|
|
|
|
|