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Carbon‐13 nuclear magnetic resonance spectra. XVI —lanthanide induced signal shifts of diastereotopic 13 C nuclei as a probe for a conformational equilibrium
Author(s) -
Duddeck Helmut,
Wiskamp Volker
Publication year - 1981
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270150409
Subject(s) - conformational isomerism , lanthanide , nuclear magnetic resonance , spectral line , isopropyl , chemistry , carbon fibers , carbon 13 , physics , materials science , molecule , nuclear physics , medicinal chemistry , organic chemistry , ion , astronomy , composite number , composite material
The 13 C NMR signals of the two methyl groups in 4‐hydroxy‐1‐isopropyl‐2‐oxaadamantane are anisochronous in the presence of Yb(fod) 3 . This is interpreted in terms of the different populations of three rotational conformers.