1-ALKYNYLDIOXABOROLANES - DETERMINATION OF (1)J(C-13,B-11) FROM C-13 NMR-STUDIES AT 102-DEGREES-C

被引：4
|
作者：
CHEESMAN, BV
DELOUX, L
SREBNIK, M
机构：
[1] Department of Chemistry, University of Toledo, Toledo, Ohio
来源：
MAGNETIC RESONANCE IN CHEMISTRY | 1995年 / 33卷 / 09期
关键词：
NMR; B-11; C-13; (1)J(C-13; B-11) COUPLING CONSTANT; 1-ALKYNYLDIOXABOROLANES;
D O I：
10.1002/mrc.1260330906
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Broad C-13 resonances, as the result of partially relaxed scalar C-13-B-11 coupling, were observed for the C-1 and to a lesser extent C-2 carbons of 1-alkynyldioxaborolanes at 25 degrees C. Measurement of the C-13 spectra at 102 degrees C resulted in a slower B-11 quadrupolar relaxation rate and allowed the determination of (1)J(C-13,B-11) sealer coupling from the resulting quadruplets for the C-1 carbon.
引用
收藏
页码：724 / 728
页数：5
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