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GTRS and 2D-NMR studies of alpha and gamma linolenic acids each containing the same H2C14-(H–C[dbnd]C–H)–C11H2–(H–C[dbnd]C–H)–C8H2 moiety.
- Source :
-
Journal of Molecular Structure . Nov2019, Vol. 1196, p258-270. 13p. - Publication Year :
- 2019
-
Abstract
- Image 1 • C14H2 -(H–C13 = C12–H)– C11H2 -(H–C10 = C9–H)– C8H2 is exactly the same structure in both Linolenic Acid isomers. • In γ-LN, chemical shifts for sites C14H2 and C8H2 are the same (1H = 2.65 ppm; 13C = 24.9 ppm). • In α-LN, 1H chemical shifts for sites C14H2 and C8H2 are the same (2.65 ppm) whereas the 13C chemical shifts are discretely different (24.9 ppm versus 24.7 ppm). • Chemical shifts for C11H2 are similar and unequal (1H = 0.78 ppm, 13C = 13.3 ppm α-LN; 1H = 0.72 ppm 13C = 13.5 ppm γ-LN). • Chemical shifts for C2H2 are similar and unequal (1H = 2.12 ppm, 13C = 33.4 ppm α-LN; 1H = 2.11 ppm 13C = 33.2 ppm γ-LN). • Moiety C17H2-(H–C16 = C15–H) is molecular site among redundant structures in α-LN at which spectroscopic differences are the most different and most important. [ABSTRACT FROM AUTHOR]
- Subjects :
- *OMEGA-6 fatty acids
*UNSATURATED fatty acids
*OMEGA-3 fatty acids
Subjects
Details
- Language :
- English
- ISSN :
- 00222860
- Volume :
- 1196
- Database :
- Academic Search Index
- Journal :
- Journal of Molecular Structure
- Publication Type :
- Academic Journal
- Accession number :
- 138292178
- Full Text :
- https://doi.org/10.1016/j.molstruc.2019.06.046