Investigation of olefinic structures in class I resinites by isolation and characterization of soluble polylabdanoids
- Argonne National Lab., IL (United States); and others
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.
- OSTI ID:
- 370460
- Report Number(s):
- CONF-960376-; TRN: 96:003805-0512
- Resource Relation:
- Conference: Spring national meeting of the American Chemical Society (ACS), New Orleans, LA (United States), 24-28 Mar 1996; Other Information: PBD: 1996; Related Information: Is Part Of 211th ACS national meeting; PB: 2284 p.
- Country of Publication:
- United States
- Language:
- English
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