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Increased resolution in proton detected heteronuclear NMR experiments by folding in the hetero‐dimension
Author(s) -
Schmieder P.,
Zimmer S.,
Kessler H.
Publication year - 1991
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.1260290415
Subject(s) - heteronuclear molecule , chemistry , pulse sequence , folding (dsp implementation) , anisotropy , heteronuclear single quantum coherence spectroscopy , dimension (graph theory) , nuclear magnetic resonance , two dimensional nuclear magnetic resonance spectroscopy , spectral line , nuclear magnetic resonance spectroscopy , proton , resolution (logic) , phase (matter) , spectroscopy , molecular physics , analytical chemistry (journal) , physics , stereochemistry , quantum mechanics , chromatography , combinatorics , mathematics , organic chemistry , artificial intelligence , computer science , electrical engineering , engineering
Limited resolution in indirect detected frequency dimensions (evolution periods) in multi‐dimensional spectroscopy is a common problem, especially in the carbon dimension of heteronuclear experiments. Folding of signals in empty regions can overcome these problems. To record the spectra in a pure phase certain conditions have to be fulfilled to account for unavoidable deviations from zero time of the zero increment. A new slight variation of inverse heteronuclear correlation pulse sequences is proposed to allow pure phase spectra. Practical applications are given.