NMR-spektroskopische untersuchungen an borverbindungen III. 1H-NMR-spektren von methyl- und äthylboranen
作者:H. Nöth、H. Vahrenkamp
DOI:10.1016/s0022-328x(00)90894-5
日期:1968.4
1H NMR spectra of 71 methyl- and ethylboranes R3−nBXn (R = Me. Et; X =NMe2, OMe, F, SMe, Cl, Br, I) and derivatives thereof are reported. From the chemical shifts the electronegativity of boron in these compounds has been estimated and the inductive effect, π-bonding and neighbour anisotropy effect of the substituents X on the spectra are discussed. The conclusions arrived at are further substantiated
报道了71个甲基和乙基硼烷R 3- n BX n(R = Me。Et; X = NMe 2,OMe,F,SMe,Cl,Br,I)及其衍生物的1 H NMR光谱。根据化学位移,估计了这些化合物中硼的电负性,并讨论了取代基X在光谱上的感应效应,π键和邻域各向异性效应。通过取代基X = NMe 2,OMe和SMe的1 H NMR数据以及与11 B化学位移的比较进一步证实了得出的结论。