<b>Synthesis of a ‘4+1’ Re(V) complex from Re(III), and its disproportionation to Re(IV) and Re(VII)</b>
oleh: P. Mayer, N.C. Yumata, T.I.A. Gerber, A. Abrahams
| Format: | Article |
|---|---|
| Diterbitkan: | Chemical Society of Ethiopia 2010-06-01 |
Deskripsi
The distorted octahedral oxorhenium(V) complex [ReOCl(had)] (<b>1</b>) (H<sub>2</sub>had = N,N-<i>bis</i>(2-hydroxybenzyl)-2-(2-aminoethyl)dimethylamine) was prepared from the oxidation of [ReCl<sub>3</sub> (MeCN)(PPh<sub>3</sub>)<sub>2</sub>] by dioxygen in the presence of H<sub>2</sub> had in ethanol. This reaction was done under reflux conditions for a relatively short reaction time of an hour. However, increasing the reaction period to seven days led to the disproportionation of <b>1</b> to [Re<sup>IV</sup>Cl(had)(PPh<sub>3</sub>)](Re sup>VII</sup>O<sub>4</sub>) (<b>2</b>). Both compounds were characterized by infra-red spectroscopy and X-ray crystallography.