作者:M.Emilia L. Saraiva、Carlos F.G. Geraldes、Victor M.S. Gil
DOI:10.1016/s0040-4020(01)85103-6
日期:1988.1
Several substituted salicylanilines (I) are studied by 1H (chemical shifts) and 13C (chemical shifts and T1 relaxation times) NMR in order to obtain information on molecular geometry changes and the transmission of the electronic effects due to substituents, as well as on the relative rates of the overall molecular tumbling and of the flipping of the phenyl rings. In particular, a good linear correlation
还通过1 H(化学位移)和13 C(化学位移和T 1弛豫时间)NMR研究了几种取代的水杨基苯胺(I),以便获得有关分子几何结构变化以及由于取代基引起的电子效应的传递的信息。总体分子翻滚和苯环翻转的相对速率。尤其是,发现了OH质子位移(受分子内氢键影响)与在苯胺部分中对位取代的Hammettσ常数具有良好的线性相关性。由于OH ... N相互作用和p取代而导致的环的刚度变化反映在苯基碳弛豫时间上。