Synthetic, Structural, NMR, and Computational Study of a Geminally Bis(<i>peri</i>-substituted) Tridentate Phosphine and Its Chalcogenides and Transition-Metal Complexes
作者:Matthew J. Ray、Rebecca A. M. Randall、Kasun S. Athukorala Arachchige、Alexandra M. Z. Slawin、Michael Bühl、Tomas Lebl、Petr Kilian
DOI:10.1021/ic3024875
日期:2013.4.15
an NMR time scale, which leads to the anisochronicity of all three phosphorus nuclei at low temperatures. Strained bis- and tris(sulfides) 2 and 3 and the bis(selenide) 4 have been isolated from the reaction of 1 with sulfur and selenium, respectively. These chalcogeno derivatives display pronounced in-plane and out-of-plane distortions of the aromatic backbones, indicating the limits of their angular
通过在孪位的方式一个磷原子上的两个苊骨架的偶联得到所述第一偕双(迫取代)三齿膦1。芳族骨架的刚性性质和分子的整体拥挤导致相当不灵活的配体,三个磷原子形成了一个相对紧凑的三角形簇。磷化氢1在NMR时间尺度上显示出受限的动力学,这导致所有三个磷核在低温下均等时性。从1的反应中已分离出应变的二硫化物和三硫化物2和3以及二硫化硒4分别含硫和硒。这些硫属元素衍生物显示出芳香族骨架的明显的面内和面外变形,表明了它们的角度变形的极限。此外,我们报告了金属与四面体[(1)Cu(MeCN)] [BF 4 ](5),方形平面[(1)PtCl] [Cl](6),三角双锥体[(1)FeCl 2 ]的金属配合物。 (7)和八面体fac -[(1)Mo(CO)3 ](8)的几何形状。在所有这些络合物的三(膦)主链被扭曲,然而,以比在硫属化物中提到一个显著较小程度2 - 4。配合物5和8在31 P和1 H NMR中显示出通量。所有新的化合物1