The molecular structure and conformation of per-alkylated cyclohexanes Part I. 4,4,8,8,12,12-Hexamethyltrispiro [2,1,2,1,2,1] dodecane
作者:M. Traetteberg、P. Bakken、R. Seip、L. Fitjer、H.J. Scheuermann
DOI:10.1016/0022-2860(87)80051-0
日期:1987.7
Abstract The molecular structure and conformation of 4,4,8,8,12,12-hexamethyltrispiro [2,1,2,1,2,1] dodecane has been studied by gas electron diffraction, and by force field as well as by molecular mechanics (MM2) calculations. The experimental data are in agreement with a molecular model in twist-boat conformation. The MM2 calculations support these results. The most noticeable geometrical parameters
摘要 4,4,8,8,12,12-六甲基三螺[2,1,2,1,2,1]十二烷的分子结构和构象已经通过气体电子衍射、力场以及分子力学 (MM2) 计算。实验数据与扭船构象的分子模型一致。MM2 计算支持这些结果。最显着的几何参数如下:甲基取代基中非常长的 CC 键 (ra = 1.590(8) A),小的 H 3 CCCH 3 价角 (98.2 (1.8)°) 和交替的 C CC的价角约为。环己烷环中的 109° 和 119°。