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A one‐dimensional selective version of the INADEQUATE experiment for determining carbon—carbon connectivities. Analysis of multi‐pulse experiments by a vectorial representation
Author(s) -
Canet D.,
Brondeau J.,
Boubel J. C.,
Retournard A.
Publication year - 1987
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260250912
Subject(s) - chemistry , pulse sequence , representation (politics) , pulse (music) , polarization (electrochemistry) , nucleus , sequence (biology) , carbon fibers , resonance (particle physics) , biological system , analytical chemistry (journal) , nuclear magnetic resonance , algorithm , atomic physics , optics , physics , chromatography , computer science , biochemistry , detector , politics , composite number , political science , law , biology , microbiology and biotechnology
The simple pulse sequence (π/2) x ‐τ‐(π/2) ‐x (π/2)φ( Acq )ψ allows selective polarization transfer from a nucleus A (on resonance) towards any nucleus X, J coupled to A, provided that τ is properly varied around ½ J with coaddition of the relevant FIDs. With an appropriate phase cycling, parent signals in a natural abundance 13 C spectrum are eliminated. This consequently leads to the unambiguous determination of all carbons coupled to A. A universal vectorial representation aimed at multi‐pulse sequence analysis is proposed and applied to the present experiment.