Synthesis of the Missing Oxide of Xenon, XeO2, and Its Implications for Earth’s Missing Xenon,Journal of the American Chemical Society

当前位置： X-MOL 学术 › J. Am. Chem. Soc. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Synthesis of the Missing Oxide of Xenon, XeO2, and Its Implications for Earth’s Missing Xenon
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2011-04-27 , DOI: 10.1021/ja110618g
David S. Brock ₁ , Gary J. Schrobilgen ₁

Affiliation

The missing Xe(IV) oxide, XeO(2), has been synthesized at 0 °C by hydrolysis of XeF(4) in water and 2.00 M H(2)SO(4(aq)). Raman spectroscopy and (16/18)O isotopic enrichment studies indicate that XeO(2) possesses an extended structure in which Xe(IV) is oxygen bridged to four neighboring oxygen atoms to give a local square-planar XeO(4) geometry based on an AX(4)E(2) valence shell electron pair repulsion (VSEPR) arrangement. The vibrational spectra of Xe(16)O(2) and Xe(18)O(2) amend prior vibrational assignments of xenon doped SiO(2) and are in accordance with prior speculation that xenon depletion from the Earth's atmosphere may occur by xenon insertion at high temperatures and high pressures into SiO(2) in the Earth's crust.

中文翻译：

氙的缺失氧化物 XeO2 的合成及其对地球缺失氙的影响

缺失的 Xe(IV) 氧化物 XeO(2) 已在 0 °C 下通过 XeF(4) 在水中和 2.00 MH(2)SO(4(aq)) 的水解合成。拉曼光谱和 (16/18)O 同位素富集研究表明 XeO(2) 具有扩展结构，其中 Xe(IV) 被氧桥接到四个相邻的氧原子上，从而给出基于AX(4)E(2) 价壳电子对排斥 (VSEPR) 排列。Xe(16)O(2) 和 Xe(18)O(2) 的振动光谱修正了氙掺杂 SiO(2) 的先前振动分配，并且与先前的推测一致，即氙可能会从地球大气中耗尽氙在高温和高压下插入地壳中的 SiO(2)。

更新日期：2011-04-27

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南