The ordered [WO2F4]2- anion

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

doi:10.1021/ic015554x

The ordered [WO₂F₄]^2- anion

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

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

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 language	English (US)
Pages (from-to)	5479-5480
Number of pages	2
Journal	Inorganic Chemistry
Volume	40
Issue number	22
DOIs	https://doi.org/10.1021/ic015554x
State	Published - Oct 22 2001

ASJC Scopus subject areas

Inorganic Chemistry

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title = "The ordered [WO2F4]2- anion",

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-.",

author = "Welk, {M. E.} and Norquist, {A. J.} and Stern, {C. L.} and Kenneth Poeppelmeier",

year = "2001",

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language = "English (US)",

volume = "40",

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journal = "Inorganic Chemistry",

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T1 - The ordered [WO2F4]2- anion

AU - Welk, M. E.

AU - Norquist, A. J.

AU - Stern, C. L.

AU - Poeppelmeier, Kenneth

PY - 2001/10/22

Y1 - 2001/10/22

N2 - 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-.

AB - 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-.

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