Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9765826 | Journal of Fluorine Chemistry | 2005 | 6 Pages |
Abstract
The presence of the [VO(O2)2F]2â ion in an aqueous solution gives rise to a doublet (δ = â714 ppm, JVF = 163 ± 3 Hz) in the 51V NMR, and a multiplet (δ = â160 ppm, Îν1/2 = 1163 Hz) in the 19F NMR spectrum. The formation of this species is enhanced in formamide solutions. The ethane-1,2-diammonium(2+) fluorooxodiperoxovanadate, [NH3CH2CH2NH3][VO(O2)2F], was prepared from aqueous solution and characterized by elemental analysis, and IR and Raman spectroscopies. The complex crystallizes in the orthorhombic space group Pbca with eight formula units in a cell of dimensions: a = 9.2690(4), b = 8.8321(5) and c = 16.7605(8) Ã
. The complex anion has a rare pentagonal pyramidal structure with a very weak intermolecular interaction d(Vâ¯O) = 2.8730(12) Ã
between the vanadium atom and the double-bonded oxygen atom from the adjacent anion.
Related Topics
Physical Sciences and Engineering
Chemistry
Inorganic Chemistry
Authors
Jana Chrappová, Peter Schwendt, JaromÃr Marek,