The ordered [WO2F4]2- anion

M. E. Welk, A. J. Norquist, C. L. Stern, Kenneth R Poeppelmeier

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Abstract

Crystallographic order of the [WO2F4]2- anion has been achieved in the new compound [HNC6H6OH][Cu (NC5H5)4 (WO2F4)2]. This salt with two cations, tetrakis(pyridine)cooper(II) [Cu(NC5H5)4]2+ and 5-hydroxy-2-methylpyridinium [HNC6H6OH]+, results in three separate anion-cation contacts and eliminates the disorder common to the [WO2F4]2- anion in the solid state. Two of those interactions are hydrogen bonds formed with [HNC6H6OH]+, through the protonated amine and the hydroxyl group. The third contact is formed with [Cu(py)4]2+. These results and observations explain the trans-directing nature of the [WO2F4]2- anion and the distinctly different cis-directing nature of the group 6 analogue [MoO2F4]2-.

Original languageEnglish
Pages (from-to)5479-5480
Number of pages2
JournalInorganic Chemistry
Volume40
Issue number22
DOIs
Publication statusPublished - Oct 22 2001

ASJC Scopus subject areas

  • Inorganic Chemistry

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    Welk, M. E., Norquist, A. J., Stern, C. L., & Poeppelmeier, K. R. (2001). The ordered [WO2F4]2- anion. Inorganic Chemistry, 40(22), 5479-5480. https://doi.org/10.1021/ic015554x