Premium
13 C Chemical shifts and conformational equilibria in quaternary piperidinium salts
Author(s) -
Sugiura Makiko,
Takao Narao
Publication year - 1982
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.1270200110
Subject(s) - conformational isomerism , chemical shift , chemistry , molecule , ring flip , ring (chemistry) , spectral line , carbon fibers , crystallography , nuclear magnetic resonance , computational chemistry , stereochemistry , materials science , organic chemistry , physics , astronomy , composite number , composite material
Carbon‐13 nuclear magnetic resonance spectra of a series of N ‐methyl‐ N ‐alkylpiperidinium salts have been measured, and the observed chemical shifts analysed in terms of the stereochemical and conformational properties of the molecules. Furthermore, the differences of the free energy (Δ G °) between two conformers on ring inversion have been estimated.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom