NMR SPECTROSCOPY OF ORGANOLITHIUM COMPOUNDS .15. 2-DIMENSIONAL LI-6,H-1-NMR SHIFT CORRELATION BY MULTIPLE-QUANTUM SPECTROSCOPY AND POLARIZATION TRANSFER - NEW TOOLS FOR STRUCTURAL RESEARCH IN THE FIELD OF ORGANOLITHIUM COMPOUNDS

被引:23
|
作者
MONS, HE [1 ]
GUNTHER, H [1 ]
MAERCKER, A [1 ]
机构
[1] UNIV SIEGEN,FACHBEREICH 8,D-57068 SIEGEN,GERMANY
关键词
POLYLITHIUM COMPOUNDS; NMR; LI-6; SHIFT CORRELATION;
D O I
10.1002/cber.19931261226
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Sizable scalar Li-6,H-1 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 nonequivalent Li-6 resonance signals measured for the dimer of 3. Two-dimensional Li-6,H-1 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.
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页码:2747 / 2751
页数:5
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