Tripodal molecules derived from ethanoldithiazinanes centered on boron and phosphorus atoms. Structural analyses by NMR and HF/6-31G(d) calculations
作者:Raúl Colorado-Peralta、Alfonso Xotlanihua-Flores、Juan Carlos Gálvez-Ruíz、Sonia A. Sánchez-Ruíz、Rosalinda Contreras、Angelina Flores-Parra
DOI:10.1016/j.molstruc.2010.07.019
日期:2010.9
characterized by 1 H, 13 C, 11 B, 31 P, 77 Se, NMR and VT-NMR experiments. BH 3 , BCl 3 , pyridine and PPh 3 O adducts of boric esters as well as the BH 3 adducts of phosphites were synthesized. The molecular geometries were calculated by HF/6-31G(d). The modeled molecules indicated a preferred ligand conformation which led to the formation of cavities. The complex NMR spectra of isomers were interpreted by comparison
摘要 衍生自 2-(1,3,5-dithhiazinan-5-yl)-乙醇 ( 1 ), 2-(1,3,5-dithhiazinan-5- ) 的一系列硼酸酯、亚磷酸酯、磷酸酯、硫代磷酸酯和硒代磷酸酯报道了基)-1-甲基-乙醇(2)和2-(1,3,5-二噻嗪烷-5-基)-1-苯基乙醇(3)。对映纯化合物(C3 对称性)由 (R) 构型的 2 (-) 和 3 (-) 制备。新的三足分子是粘性液体,主要通过 1 H、 13 C、 11 B、 31 P、 77 Se、NMR 和 VT-NMR 实验表征。合成了硼酸酯的BH 3 、BCl 3 、吡啶和PPh 3 O加合物以及亚磷酸酯的BH 3 加合物。分子几何形状由HF/6-31G(d)计算。模拟分子表明优选的配体构象导致空腔的形成。