С21n‑alkylbenzene and 1‑n‑alklylnaphthalene in Oils: Isotope Effect during Cyclization/Aromatization?

—Carbon isotope composition was analyzed in С 21 n ‑alkylbenzene and n ‑alklylnaphthalene from five Upper Devonian oils of the Timan–Pechora Basin. In spite of the variations in carbon isotope composition, the difference in δ 13 C between n ‑alkylbenzene and n ‑alklylnaphthalene is relatively consta...

Full description

Saved in:
Bibliographic Details
Published in:Geochemistry international 2020, Vol.58 (1), p.61-65
Main Authors: Bushnev, D. A., Burdel’naya, N. S., Valyaeva, O. V.
Format: Article
Language:English
Subjects:
Aliphatic compounds
Carbon
Carbon cycle
Carbon isotopes
Chemical composition
Devonian
Earth and Environmental Science
Earth Sciences
Fractionation
Geochemistry
Isotope composition
Isotope effect
Isotope fractionation
Isotopes
Oils & fats
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:—Carbon isotope composition was analyzed in С 21 n ‑alkylbenzene and n ‑alklylnaphthalene from five Upper Devonian oils of the Timan–Pechora Basin. In spite of the variations in carbon isotope composition, the difference in δ 13 C between n ‑alkylbenzene and n ‑alklylnaphthalene is relatively constant and accounts for, on average, 2.7‰. It is generally accepted that these compounds were derived from a common source. Thus, the revealed carbon isotope fractionation is related to the cyclization and aromatization of aliphatic chain.
ISSN:0016-7029
1556-1968
DOI:10.1134/S0016702920010036