Sulfur and Hydrogen Isotope Anomalies in Meteorite Sulfonic Acids | Zendy

George Cooper | Zendy; M. H. Thiemens | Zendy; T. Jackson | Zendy; Sherwood Chang | Zendy

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Sulfur and Hydrogen Isotope Anomalies in Meteorite Sulfonic Acids

Author(s) -

George Cooper,

M. H. Thiemens,

T. Jackson,

Sherwood Chang

Publication year - 1997

Publication title -

science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 12.556

H-Index - 1186

eISSN - 1095-9203

pISSN - 0036-8075

DOI - 10.1126/science.277.5329.1072

Subject(s) - murchison meteorite , sulfur , chemistry , meteorite , hydrogen , deuterium , carbon fibers , hydrogen sulfide , carbonaceous chondrite , isotope , isotopes of carbon , inorganic chemistry , chondrite , environmental chemistry , organic chemistry , astrobiology , materials science , total organic carbon , physics , composite material , quantum mechanics , composite number

Intramolecular carbon, hydrogen, and sulfur isotope ratios were measured on a homologous series of organic sulfonic acids discovered in the Murchison meteorite. Mass-independent sulfur isotope fractionations were observed along with high deuterium/hydrogen ratios. The deuterium enrichments indicate formation of the hydrocarbon portion of these compounds in a low-temperature environment that is consistent with that of interstellar clouds. Sulfur-33 enrichments observed in methanesulfonic acid could have resulted from gas-phase ultraviolet irradiation of a precursor, carbon disulfide. The source of the sulfonic acid precursors may have been the reactive interstellar molecule carbon monosulfide.

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