作者:Andrea Mazzanti、Lodovico Lunazzi、Susan Lepri、Renzo Ruzziconi、Manfred Schlosser
DOI:10.1002/ejoc.201101008
日期:2011.11
The torsional barriers of 2-substituted 2-arylpyridines have been probed experimentally (by using dynamic NMR spectroscopy) and computationally (by using density functional theory). Due to the compressibility of the lone pair, the torsional barriers of the arylpyridines are up to 4.2 kcal/mol smaller than those of the carba-analogous biphenyls. Furthermore, the ground states of the 2-arylpyridines
2-取代的 2-芳基吡啶的扭转势垒已经通过实验(通过使用动态核磁共振光谱)和计算(通过使用密度泛函理论)进行了探测。由于孤对的可压缩性,芳基吡啶的扭转势垒比类似卡巴的联苯小 4.2 kcal/mol。此外,2-芳基吡啶的基态更少