Photochemistry of sulfur dioxide and the origin of mass-independent isotope fractionation in Earth's atmosphere

S Ono - Annual Review of Earth and Planetary Sciences, 2017 - annualreviews.org
Archean sulfide and sulfate minerals commonly exhibit anomalous ratios among four stable
sulfur isotopes, 32S, 33S, 34S, and 36S. These anomalous relationships, referred to as …

[HTML][HTML] Photodissociation and photoionisation of atoms and molecules of astrophysical interest

AN Heays, AD Bosman, EF Van Dishoeck - Astronomy & Astrophysics, 2017 - aanda.org
A new collection of photodissociation and photoionisation cross sections for 102 atoms and
molecules of astrochemical interest has been assembled, along with a brief review of the …

Vacuum ultraviolet photodissociation of sulfur dioxide and its implications for oxygen production in the early Earth's atmosphere

Y Chang, Y Fu, Z Chen, Z Luo, Y Zhao, Z Li… - Chemical …, 2023 - pubs.rsc.org
The emergence of molecular oxygen (O2) in the Earth's primitive atmosphere is an issue of
major interest. Although the biological processes leading to its accumulation in the Earth's …

Contribution of isotopologue self‐shielding to sulfur mass‐independent fractionation during sulfur dioxide photolysis

S Ono, AR Whitehill, JR Lyons - Journal of Geophysical …, 2013 - Wiley Online Library
Signatures of sulfur mass‐independent fractionation (S‐MIF) are observed for sulfur
minerals in Archean rocks, and for modern stratospheric sulfate aerosols (SSA) deposited in …

SO2 photolysis as a source for sulfur mass-independent isotope signatures in stratospehric aerosols

AR Whitehill, B Jiang, H Guo… - Atmospheric Chemistry and …, 2015 - acp.copernicus.org
Signatures of sulfur isotope mass-independent fractionation (S-MIF) have been observed in
stratospheric sulfate aerosols deposited in polar ice. The S-MIF signatures are thought to be …

Vibronic origin of sulfur mass-independent isotope effect in photoexcitation of SO2 and the implications to the early earth's atmosphere

AR Whitehill, C ** simulations
S Mai, P Marquetand, L González - The Journal of Chemical Physics, 2014 - pubs.aip.org
The importance of triplet states in the photorelaxation dynamics of SO 2 is studied by mixed
quantum-classical dynamics simulations. Using the SHARC method, standing for Surface …

[HTML][HTML] A chirped-pulse Fourier-transform microwave/pulsed uniform flow spectrometer. II. Performance and applications for reaction dynamics

C Abeysekera, LN Zack, GB Park, B Joalland… - The Journal of …, 2014 - pubs.aip.org
This second paper in a series of two reports on the performance of a new instrument for
studying chemical reaction dynamics and kinetics at low temperatures. Our approach …

Excitation band dependence of sulfur isotope mass-independent fractionation during photochemistry of sulfur dioxide using broadband light sources

AR Whitehill, S Ono - Geochimica et Cosmochimica Acta, 2012 - Elsevier
Ultraviolet photolysis of sulfur dioxide (SO2) is hypothesized to be the source of the sulfur
isotope mass-independent fractionation (S-MIF) observed in Archean sulfate and sulfide …