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Issue 32, 2019
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The reaction of phenoxatellurine with single-electron oxidizers revisited

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Abstract

The reaction of phenoxatellurine (PT) with the known single-electron oxidizers AlCl3/CH2Cl2, [NO][SbF6] and [NO][BF4] provided the diamagnetic products [(PT)CH2Cl][AlCl4] (1), [PT2][SbF6]2 (2) and [PT3][BF4]2 (3), respectively, which were fully characterized by X-ray crystallography. The dications [PT2]2+ and [PT3]2+ present in 2 and 3 can be regarded as dimers of the elusive radical cation [PT]˙+ or as adduct between this dimer and neutral PT, respectively. The stacking between the aromatic layers of [PT2]2+ and [PT3]2+ can be best described using the pancake bonding (PB) model. The computational analysis uncovers the essential role of London dispersion effects for the stacking process and reveals the Te–Te interactions to be dominated by non-covalent bonding. The results are compared with those of the related thianthrene (TA) system.

Graphical abstract: The reaction of phenoxatellurine with single-electron oxidizers revisited

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Supplementary files

Article information


Submitted
09 May 2019
Accepted
16 Jul 2019
First published
17 Jul 2019

New J. Chem., 2019,43, 12754-12766
Article type
Paper

The reaction of phenoxatellurine with single-electron oxidizers revisited

F. Mostaghimi, E. Lork, I. Hong, T. L. Roemmele, R. T. Boeré, S. Mebs and J. Beckmann, New J. Chem., 2019, 43, 12754
DOI: 10.1039/C9NJ02401H

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