N-(2,6-Dimethylphenyl)diphenylphosphinamine chalcogenides (S, Se) and a zirconium complex possessing phosphanylamide in the coordination sphere
作者:Kishor Naktode、Ravi K. Kottalanka、Tarun K. Panda
DOI:10.1039/c2nj40646b
日期:——
We report the syntheses of N-(2,6-dimethylphenyl)-P,P-diphenylphosphinothioic amide Ph2P(S)NH-(2,6-Me2C6H3)] (2) and N-(2,6-dimethylphenyl)-P,P-diphenylphosphinoselenoic amide Ph2P(Se)NH-(2,6-Me2C6H3)] (3) by the reaction of N-(2,6-dimethylphenyl)-P,P-diphenylphosphinamine [Ph2PNH-(2,6-Me2C6H3)] (1) with elemental sulphur and selenium respectively. When the phosphinamine compound 1 was treated with n-BuLi and subsequently with zirconocenedichloride in an equimolar ratio, the corresponding zirconium complex [η5-Cp2ZrCl(η2-N(2,6-Me2C6H3)PPh2}] (5) was obtained in good yield. The solid state structures of all the compounds were established by single crystal X-ray diffraction analysis. In zirconium complex 5, a highly strained three membered metallacycle was observed. In addition, the solid state structure of [Ph2P(O)NH(2,6-Me2C6H3)] (4) was also determined. In the solid state structure, compound 4 shows extensive intermolecular hydrogen bonding through oxygen atoms, whereas a lesser extent of intermolecular hydrogen bonding was noted in compound 2, due to the presence of the less electronegative sulphur atom.
我们报道了N-(2,6-二甲基苯基)-P,P-二苯基硫代膦酰胺Ph2P(S)NH-(2,6-Me2C6H3)] (2)和N-(2,6-二甲基苯基)-P的合成,P-二苯基膦硒酰胺Ph2P(Se)NH-(2,6-Me2C6H3)](3)由N-(2,6-二甲基苯基)-P,P-二苯基膦胺[Ph2PNH-(2,6-Me2C6H3)反应)] (1) 分别与元素硫和硒。当膦胺化合物1用n-BuLi处理,随后用等摩尔比的二氯二茂锆处理时,很好地得到了相应的锆络合物[η5-Cp2ZrCl(η2-N(2,6-Me2C6H3)PPh2}](5)通过单晶X射线衍射分析确定了所有化合物的固态结构,在锆络合物5中,观察到了高应变的三元金属环。此外,还观察到了[Ph2P(O)NH()的固态结构。 2,6-Me2C6H3)] (4) 在固态结构中,化合物 4 通过氧原子显示出广泛的分子间氢键,而由于存在 2,6-Me2C6H3)] (4),因此在化合物 2 中发现了较小程度的分子间氢键。电负性较小的硫原子。