The ordered [WO2F4]2- anion

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

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)


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
Issue number22
Publication statusPublished - Oct 22 2001

ASJC Scopus subject areas

  • Inorganic Chemistry

Fingerprint Dive into the research topics of 'The ordered [WO<sub>2</sub>F<sub>4</sub>]<sup>2-</sup> anion'. Together they form a unique fingerprint.

Cite this