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The Autoionization of [TiF 4 ] by Cation Complexation with [15]Crown‐5 To Give [TiF 2 ([15]crown‐5)][Ti 4 F 18 ] Containing the Tetrahedral [Ti 4 F 18 ] 2− Ion

2005; Wiley; Volume: 44; Issue: 48 Linguagem: Inglês

10.1002/anie.200502900

1521-3773

A. Decken, H. Donald Brooke Jenkins, C. Knapp, G.B. Nikiforov, Jack Passmore, J. Mikko Rautiainen,

Chemical Synthesis and Characterization

It's the crown that does it: The auto-ionization of [TiF4] has been promoted by complexation with [15]crown-5 to produce [TiF2([15]crown-5)][Ti4F18], which contains the new tetrahedral ion [Ti4F18]2− (see picture). The thermodynamics of the [Ti4F18]2− ion relative to the [Ti2F9]− ion in the gas, solution, and solid states were calculated by density functional methods.