作者:Zhen-He Wang、Shuji Usui、Yoshimasa Fukazawa
DOI:10.1246/bcsj.66.1239
日期:1993.4
The title compound (1) was synthesized by desulfurization of 2,13-dithia[4.4]orthocyclophane. The molecular structure of 1 which has antiperiplanar arrangement of the two benzene rings was obtained by an X-ray crystallographic analysis. Molecular mechanics calculation using MM3 and our MMRS program has indicated that the anti structure found in crystal is the most stable conformer. Variable temperature 1H NMR measurement has disclosed that the contribution of the conformers other than the anti is negligible.
标题化合物(1)是通过对 2,13-二硫杂[4.4]邻环烷进行脱硫合成的。通过 X 射线晶体学分析,我们获得了 1 的分子结构,其中两个苯环呈反平行排列。利用 MM3 和我们的 MMRS 程序进行的分子力学计算表明,晶体中的反结构是最稳定的构象。变温 1H NMR 测量显示,除反结构外,其他构象的贡献微乎其微。