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NMR Spectroscopy of Organolithium Compounds, XV [1] . Two‐Dimensional 6 Li, 1 H‐NMR Shift Correlation by Multiple Quantum Spectroscopy and Polarization Transfer: New Tools for Structural Research in the Field of Organolithium Compounds
Author(s) -
Mons HansEgbert,
Günther Harald,
Maercker Adalbert
Publication year - 1993
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19931261226
Subject(s) - chemistry , nuclear magnetic resonance spectroscopy , spectroscopy , polarization (electrochemistry) , transverse relaxation optimized spectroscopy , fluorine 19 nmr , stereochemistry , physics , quantum mechanics
Sizable scalar 6 Li, 1 H spin‐spin coupling constants have been observed for the new dilithio compound ( Z )‐2‐lithio‐1‐( o ‐lithiophenyl)ethene ( 3 ) which allow an assignment of the two non‐equivalent 6 Li resonance signals measured for the dimer of 3 . Two‐dimensional 6 Li, 1 H shift correlation experiments based on multiple quantum spectroscopy as well as on polarization transfer are introduced as new tools for structural research in the field of organolithium compounds.