5-, 6-, 7- and 8-trimethylsilylquinolines and their methiodides as well as some 2-silyl-alkylquinolines were obtained by lithium synthesis in order to elucidate intramolecular donor-acceptor interactions between nitrogen and silicon atoms. 1H, 13C, 14N, 15N and 29Si NMR spectra of the compounds were studied and quantum-chemical calculation of charges on individual atoms in the unsubstituted quinoline
通过
锂合成获得2-,3-,4-,5-,6-,7-和8-三甲基甲
硅烷基
喹啉及其甲
硫醚以及一些2-甲
硅烷基烷基
喹啉,以阐明氮与氮之间的分子内供体-受体相互作用。
硅原子。1 H,13 C,14 N,15 N和29研究了化合物的Si NMR谱,并对未取代的
喹啉和三甲基甲
硅烷基
喹啉分子中单个原子上的电荷进行了量子
化学计算。计算了各种键的总系统能量的两个中心部分。这些发现表明2-三甲基甲
硅烷基
喹啉中氮与
硅原子之间的供体-受体相互作用降低了氮原子上的电子密度。在8-三甲基甲
硅烷基
喹啉中观察到明显较弱的相互作用。