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Selective detection of multiplets via double quantum coherence: A 19 F NMR study of perfluorodecalin
Author(s) -
Fung B. M.
Publication year - 1983
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/omr.1270210612
Subject(s) - coherence (philosophical gambling strategy) , cis–trans isomerism , quantum , chemistry , spectrum (functional analysis) , physics , stereochemistry , quantum mechanics
Commercially obtained perfluorodecalin (octadecafluorodecahydronaphthalene) contains a mixture of cis ‐ and trans ‐isomers, the 19 F NMR signals of which overlap. The spectrum can be simplified and assignments can be made by using techniques based on double quantum coherence. The INADEQUATE method eliminates peaks due to the cis ‐isomer, and the DOUBTFUL method selectively detects two quartets of the trans ‐isomer.