Add time:08/02/2019         Source:sciencedirect.com

Raman spectra were obtained from the natural crystalline (evenkite) and amorphous (OZOKERITE (cas 12198-93-5) and hatchetin) hydrocarbons, originating from volcanic and sedimentary rocks from several sites (Merník, Evenki, Zastávka). Raman spectra of all materials investigated confirm their exclusively aliphatic character. Vibrational assignments are proposed and compared with pure synthetic compounds and the differences in Raman spectra obtained from materials from different sites are discussed. Monoclinic evenkite corresponds to n-tetratracosane (C24H50). Noncrystalline waxy ozokerite and hatchetine contain several degradation products in addition to higher paraffins.

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