Identification and geochemical significance of cyclic di-and trisulphides with linear and acyclic isoprenoid carbon skeletons in immature sediments

Details Identification and geochemical significance of cyclic di-and trisulphides with linear and acyclic isoprenoid carbon skeletons in immature sediments Identification and geochemical significance of cyclic di-and trisulphides with linear and acyclic isoprenoid carbon skeletons in immature sediments

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991gecoa..55.3685k&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 55, Issue 12, pp.3685-3695

Computer Science

Scientific paper

Homologous series (C 15 -C 24 ) of novel 3- n -alkyl-1,2-dithianes and 3- n -alkyl-6-methyl-1,2-di-thianes have been identified in immature sediments. The identification of these compounds was based on comparison of mass spectra and Chromatographie data with those of synthesized 3-methyl-6-tridecyll, 2-dithiane. In addition, 4-methyl-3-(3,7,11-trimethyldodecyl)-1,2-dithiane, 4-(4,8,12-trimethyltridecyl)-1,2-dithiane, 5-methyl-4-(3,7,11-trimethyldodecyl)-1,2,3-trithiepane, and a 1,2-dithiane possessing a pentakishomohopane carbon skeleton were tentatively assigned on the basis of mass spectral characteristics, selective chemolysis, and desulphurisation. The occurrence of these cyclic di-and trisulphides with linear, acyclic isoprenoid and hopanoid carbon skeletons in thermally immature sediments indicates that inorganic polysulphides are incorporated into functionalised lipids during the early stages of diagenesis.

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