New XeO3 Phases

  • Author: ChemistryViews.org
  • Published: 09 December 2016
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
  • Source / Publisher: Inorganic Chemistry/ACS Publications
  • Associated Societies: American Chemical Society (ACS), USA
thumbnail image: New XeO<sub>3</sub> Phases

Xenon trioxide (XeO3) is extremely explosive as well as shock-, temperature-, and light-sensitive. It can be synthesized by the hydrolysis of XeF4 and crystallized by slow evaporation of its aqueous solution. XeO3 obtained in this way has been characterized using X-ray crystallography and was found to form an orthorhombic phase (α-XeO3) with the space group P212121.


James T. Goettel and Gary J. Schrobilgen, McMaster University, Hamilton, Ontario, Canada, have reinvestigated the solid-state structure of the compound and found two new phases by modifying the crystallization conditions. The team obtained α-XeO3 by slowly evaporating a solution of XeO3 in 48 % HF solution. β-XeO3 was synthesized by slow water evaporation from aqueous XeO3 solutions. Evaporation of a solution of XeO3 in propionitrile (H3CCH2CN) gave crystals of γ-XeO3.


The researchers characterized the obtained phases by single-crystal X-ray crystallography and Raman spectroscopy. They obtained a more precise structure of α-XeO3 that was in agreement with previously reported data. The β- and γ-phases are rhombohedral with the point groups R3 and R3c, respectively. According to the team, all three structures feature Xe=O---Xe bridges resulting from the simultaneous donor and acceptor properties of XeO3.


 

Article Views: 788

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


CONNECT:

ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter


A product of ChemPubSoc Europe (16 European Chemical Societies)and Wiley-VCH