Polarity and Conformational Analysis of Tri(1-naphthyl)phosphine, Tri(2-naphthyl)phosphine, and Their Chalcogenides
作者:A. A. Kuznetsova、D. V. Chachkov、N. A. Belogorlova、V. A. Kuimov、S. F. Malysheva、Ya. A. Vereshchagina
DOI:10.1134/s1070428021080030
日期:2021.8
structure of tri(1- or 2-naphthyl)phosphines and their chalcogenides were determined by the methods of dipole moments, IR spectroscopy, and DFT quantum-chemical calculations at the B3PW91/6-311++G(df,p) level of theory. In solution, tri(1-naphthyl)phosphine prefers a single conformer with a gauche,gauche,gauche orientation of the substituents at the phosphorus. Tri(2-naphthyl)phosphine, as well as both
摘要 在B3PW91/6-311++G(df,p ) 理论水平。在溶液中,三(1-萘基)膦更喜欢单一的构象异构体,在磷上的取代基具有gauche , gauche , gauche取向。三(2-萘基)膦以及两种膦硫属元素化物均以多种形式的平衡混合物存在,取代基呈螺旋桨式排列,C sp 2 ‒ C sp 2 呈顺式或斜纹取向 和 P=X (X = LEP, O, S, Se) 键。