TY - JOUR
T1 - Laboratory evidence for a key intermediate in the Venus atmosphere
T2 - Peroxychloroformyl radical
AU - Pernice, Holger
AU - Garcia, Placido
AU - Willner, Helge
AU - Francisco, Joseph S.
AU - Mills, Franklin P.
AU - Allen, Mark
AU - Yung, Yuk L.
PY - 2004/9/28
Y1 - 2004/9/28
N2 - For two decades, the peroxychloroformyl radical, CIC(O)OO, has played a central role in models of the chemical stability of the Venus atmosphere. No confirmation, however, has been possible in the absence of laboratory measurements for CIC(O)OO. We report the isolation of CIC(O)OO in a cryogenic matrix and its infrared and ultraviolet spectral signatures. These experiments show that CIC(O)OO is thermally and photolytically stable in the Venus atmosphere. These experimental discoveries validate the existence of CIC(O)OO, confirm several longstanding model assumptions, and provide a basis for the astronomical search for this important radical species.
AB - For two decades, the peroxychloroformyl radical, CIC(O)OO, has played a central role in models of the chemical stability of the Venus atmosphere. No confirmation, however, has been possible in the absence of laboratory measurements for CIC(O)OO. We report the isolation of CIC(O)OO in a cryogenic matrix and its infrared and ultraviolet spectral signatures. These experiments show that CIC(O)OO is thermally and photolytically stable in the Venus atmosphere. These experimental discoveries validate the existence of CIC(O)OO, confirm several longstanding model assumptions, and provide a basis for the astronomical search for this important radical species.
UR - http://www.scopus.com/inward/record.url?scp=4644269049&partnerID=8YFLogxK
U2 - 10.1073/pnas.0405501101
DO - 10.1073/pnas.0405501101
M3 - Article
SN - 0027-8424
VL - 101
SP - 14007
EP - 14010
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
IS - 39
ER -