Ultraviolet photochemistry of ethane: implications for the atmospheric chemistry of the gas giants.
Ultraviolet photochemistry of ethane: implications for the atmospheric chemistry of the gas giants.
复制标题
乙烷的紫外光化学：对气态巨行星大气化学的影响
DOI：
10.1039/d0sc01746a
复制
发表时间：
2020-04-29
期刊：
影响因子：
8.4
通讯作者：
Hansen CS
中科院分区：
文献类型：
--
作者：
Chang Y;Yang J;Chen Z;Zhang Z;Yu Y;Li Q;He Z;Zhang W;Wu G;Ingle RA;Bain M;Ashfold MNR;Yuan K;Yang X;Hansen CS
Chemical processing in the stratospheres of the gas giants is driven by incident vacuum ultraviolet (VUV) light. Ethane is an important constituent in the atmospheres of the gas giants in our solar system. The present work describes translational spectroscopy studies of the VUV photochemistry of ethane using tuneable radiation in the wavelength range 112 ≤ λ ≤ 126 nm from a free electron laser and event-triggered, fast-framing, multi-mass imaging detection methods. Contributions from at least five primary photofragmentation pathways yielding CH2, CH3 and/or H atom products are demonstrated and interpreted in terms of unimolecular decay following rapid non-adiabatic coupling to the ground state potential energy surface. These data serve to highlight parallels with methane photochemistry and limitations in contemporary models of the photoinduced stratospheric chemistry of the gas giants. The work identifies additional photochemical reactions that require incorporation into next generation extraterrestrial atmospheric chemistry models which should help rationalise hitherto unexplained aspects of the atmospheric ethane/acetylene ratios revealed by the Cassini–Huygens fly-by of Jupiter.
登录
查看更多内容
影响因子：
4.4
作者：
HAMPSON, RF;MCNESBY, JR;TANAKA, I
通讯作者：
TANAKA, I
影响因子：
3.2
作者：
Hue, V.;Hersant, E.;Sinclair, J. A.
通讯作者：
Sinclair, J. A.
影响因子：
3.2
作者：
Hue, V.;Greathouse, T. K.;Hersant, F.
通讯作者：
Hersant, F.
影响因子：
4.4
作者：
Jackson, WM;Price, RJ;Suits, AG
通讯作者：
Suits, AG
影响因子：
3.3
作者：
Jacovella, U.;Stein, C. J.;Merkt, F.
通讯作者：
Merkt, F.