XeF<sub>2</sub> Coordination to a Halogen Center; Raman Spectra (<i>n</i> = 1, 2) and X-ray Crystal Structures (<i>n</i> = 2) of [BrOF<sub>2</sub>][AsF<sub>6</sub>]·<i>n</i>XeF<sub>2</sub> and [XOF<sub>2</sub>][AsF<sub>6</sub>] (X = Cl, Br)
作者:David S. Brock、Jonathan J. Casalis de Pury、Hélène P. A. Mercier、Gary J. Schrobilgen、Bernard Silvi
DOI:10.1021/ic100712y
日期:2010.7.19
The syntheses and structural characterizations of the [XOF2][AsF6] (X = Cl, Br) salts and the XeF2 adduct-salts, [BrOF2][AsF6]·nXeF2 (n = 1, 2), are described. Although the [XOF2][AsF6] salts have been known for some time, their crystal structures had not been reported until the present study. The crystal structure of [BrOF2][AsF6] shows a positional disorder among the oxygen atom and the fluorine
[XOF 2 ] [AsF 6 ](X = Cl,Br)盐和XeF 2加合物盐[BrOF 2 ] [AsF 6 ]· n XeF 2(n = 1,2)的合成和结构表征进行说明。尽管[XOF 2 ] [AsF 6 ]盐已经知道了一段时间,但直到本研究之前,尚未报道它们的晶体结构。[BrOF 2 ] [AsF 6 ]的晶体结构显示氧原子和氟原子之间的位置无序。ClOF 2 +和BrOF 2 +有选自由氧原子和两个氟原子和由三个长接触到不同的ASF的氟原子的第二配位球的主要三足配位球伪八面体配位6 -的阴离子。[XOF 2 ] [AsF 6 ]的低温拉曼光谱已根据晶体结构并借助[XOF 2 ] [AsF 6 ] 3 2-作为模型的量子化学计算进行了分配。XOF 2 +的晶体学环境。XeF 2的几个示例通过氟配位到过渡金属中心是已知的,但是没有知道与氙以外的非金属中心配位的XeF 2的晶体学表征的例子。合成了复杂的阳离子盐[BrOF