Synthesis and Characterization of Monohaloalkoxyarsoranes Bearing a Novel Tridentate Ligand Occupying One Apical and Two Equatorial Sites
作者:Hideaki Yamamichi、Shiro Matsukawa、Yohsuke Yamamoto
DOI:10.1080/10426501003772003
日期:2010.5.27
A series of pentavalent organoarsenic monohalides (F, Cl, and Br) were synthesized using a rigid tridentate ligand with a 2,2,2-trifluoro-1,1-diphenylethanol skeleton. The chloro derivative (4) could not be isolated due to its sensitivity to air, whereas the fluoro (5) and bromo derivatives (6) were isolated as crystalline solids. The X-ray crystallography of 5 and 6 revealed that both compounds adopted
使用具有 2,2,2-三氟-1,1-二苯基乙醇骨架的刚性三齿配体合成了一系列五价有机砷单卤化物(F、Cl 和 Br)。氯衍生物 (4) 由于对空气敏感而无法分离,而氟 (5) 和溴衍生物 (6) 作为结晶固体被分离出来。5 和 6 的 X 射线晶体学显示,这两种化合物在砷原子上均采用五配位,具有共价砷 - 卤素键,而不是四配位离子形式。5 和 6 砷原子周围的固态结构几乎是理想的三角双锥 (TBP) 几何结构。NMR 测量表明 4、5 和 6 即使在溶液中也处于五配位状态。