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Title:
Laboratory Investigations on the Infrared Absorptions of Germanium-bearing Molecules-Directing the Identification of Organo-Germanium Molecules in the Atmospheres of Jupiter and Saturn
Authors:
Carrier, William; Osamura, Yoshihiro; Zheng, Weijun; Kaiser, Ralf I.
Affiliation:
AA(Department of Chemistry, University of Hawai'i at Manoa, Honolulu, HI 96822; .), AB(Department of Chemistry, Rikkyo University, Tokyo, 171-8501, Japan.), AC(Department of Chemistry, University of Hawai'i at Manoa, Honolulu, HI 96822; .), AD(Department of Chemistry, University of Hawai'i at Manoa, Honolulu, HI 96822; .)
Publication:
The Astrophysical Journal, Volume 654, Issue 1, pp. 687-692. (ApJ Homepage)
Publication Date:
01/2007
Origin:
UCP
ApJ Keywords:
Molecular Data, Planets and Satellites: Individual: Jupiter, Planets and Satellites: Individual: Saturn
Abstract Copyright:
(c) 2007: The American Astronomical Society
DOI:
10.1086/507441
Bibliographic Code:
2007ApJ...654..687C

Abstract

Germanium-bearing molecules of the formula Ge2Hx (x=2-6) are plausible candidates for organometallic molecules present in the atmospheres of Jupiter and Saturn. Combining low-temperature spectroscopy with computed vibrational spectra of these molecules, we have observed strong fundamentals of seven germanium-bearing molecules GeH3 (germyl radical), Ge2H6 (digermane), Ge2H5 (digermyl radical), H2GeGeH2 (digermene), HGeGeH3 (digermanylidene), HGeGeH2 (digermenyl radical), and GeH2Ge (di-μ-hydrodigermanium) via infrared spectroscopy in the laboratory. These bands were confirmed in D4-germane matrices. Our data can guide the search for hydrogen-deficient germanium-carrying molecules in the atmospheres of Jupiter and Saturn, where the germane (GeH4) precursor molecule is present.
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