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- W2488921391 abstract "Resinites derived from labdatriene structures (Class I) are ubiquitous throughout the geosphere. A soluble polylabdanoid material has been isolated by sequential extraction with organic solvents. Solid- and liquid-state NMR spectroscopy, and Py-GC-MS, indicate that at least for immature resinites, the extractable polymer is representative of the insoluble, polylabdanoid material, which constitutes the bulk of most Class I resinites. With increasing maturity, the dominant chemical transformation that occurs in these materials is the {open_quotes}loss{close_quotes} of exomethylene structures and depletion of olefinic character from {approximately}two to {approximately}one olefin per monomer unit. To investigate the fate of olefinic structures and to determine the nature of the residual olefin distribution in these materials, two-dimensional NMR correlation spectroscopies (COSY and HMQC) and nuclear Overhauser experiments (NOESY) have been undertaken. Results from these analyses and their implications to the maturation of Class-I resinites will be discussed." @default.
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- W2488921391 date "1996-10-01" @default.
- W2488921391 modified "2023-09-26" @default.
- W2488921391 title "Investigation of olefinic structures in class I resinites by isolation and characterization of soluble polylabdanoids" @default.
- W2488921391 hasPublicationYear "1996" @default.
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