在XeF+/H2O系统上:氧化酸阴离子的合成和表征,FXeOXeFXeF+
Michael Gerken1, Matthew D Moran, Hélène P A Mercier
1Department of Chemistry, McMaster University, Hamilton ON L8S 4M1, Canada.
Journal of the American Chemical Society
|August 28, 2009
概括
这项研究重新调查了H(2) OF(+) 的合成,并发现了复杂的平衡. 描述了新的 (Xenon) 化合物[Xe(3) OF(3) ][PnF(6) ]和[H(3) O][PnF(6) ] x 2 XeF(2),反驳了H(2) OF(+) 阴离子的合成.
科学领域:
- 无机化学 无机化学 有机化学
- 化学 的化学
- 异化学 异化学
背景情况:
- 之前的研究声称合成了H(2) OF(+) 离子.
- 据报道,这种阳离子是通过氧化化水由[XeF][PnF(6) ]在HF溶液中形成的.
研究的目的:
- 重新调查报告中的H(2) OF(+) 电离子的合成.
- 描述H(2) O,[XeF][PnF(6) ]和HF反应系统中形成的产物.
主要方法:
- 单晶X射线衍射用于结构确定.
- 振动光谱 (红外和拉曼) 用于化合物表征.
- 量子化学计算用于理论分析和光谱分配.
- (18) O 和 (2) D 振动分析的丰富性研究.
主要成果:
- 对H(2) OF(+) 的合成进行了反驳;相反,观察到复杂的平衡.
- 两种新的 (Xenon) 化合物被分离和鉴定:[Xe) 3OF) 3][PnF) 6]和[H) 3O][PnF) 6]×2XeF) 2).
- [Xe{3}OF{3}][PnF{6}]盐含有新型Z形FXeOXeFXeF{+}离子,这是第一个被分离的Xe{2}氧化化物.
结论:
- 原来关于H(2) OF(+) 阳离子合成的说法被驳斥了.
- 这项研究确定和结构性地表征了新的 (Xenon) 化合物及其相关的阳离子.
- 计算研究支持观察到的结构和建议的反应途径,确定FXeOH和FXeOH(2)(+) 作为潜在的中间体.
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