Tin complexes derived from nitrogen-based 1,3,5-heterocyclohexanes bearing 2-hydroxypropan-1-yl, 2-diphenylphosphitepropan-1-yl and 2-diphenylphosphinepropan-1-yl as pendant N-substituents
作者:Alfonso Xotlanihua-Flores、Tayde O. Villaseñor-Granados、Raúl Colorado-Peralta、Sonia A. Sánchez-Ruiz、Pedro Montes-Tolentino、Angelina Flores-Parra
DOI:10.1016/j.molstruc.2022.132368
日期:2022.4
studied compounds, the phosphorus atoms are strongly coordinated to tin atoms, whereas the intracyclic nitrogen atoms gave weak coordination bonds. The pnicogen bonds N→P found in ligands 3-5 were preserved in the coordination products. By coordination, hypervalent tetra- [Sn(II)]; penta- and hexacoordinate [Sn(IV)] tin atoms were obtained. It was found that Sn(II)Cl2 is a suitable Lewis acid with
一系列 Sn(IV)PhCl 3、Sn(IV)Ph 2 Cl 2、Sn(IV)Ph 3 Cl 或 Sn(II)Cl 2氮基 1,3,5-杂环己烷配合物:5-甲基-[1,3,5]-二噻嗪烷 ( 1 ), (R)-2-羟基-丙-1-基-[1,3,5]-二噻嗪烷 ( 2 ), (R)-2-二苯基亚膦酸酯-丙-1-基-[1,3,5]-二噻嗪烷 ( 3 ), 3,5-双((R)-2-二苯基膦丙基)-1,3,5-噻二嗪烷 ( 4 ) 1,3,5-三((R)-2-diphenylphosphinoprop-1-yl)-1,3,5-triazinane ( 5 ) 合成并在溶液中通过119 Sn, 31 P, 13 C 和1分析其结构H 和变温核磁共振实验。进行气相DFT计算以获得配合物的优选构象和锡原子的构型。配体1-5的共同点是杂环与轴向位置的 N-取代基处于构象平衡,但在赤道位置具有一个 NR的化合