The reactivity of [ReBr3(MeCN)(dppe)] towards gaseous nitric oxide. The X-ray structure of [ReBr3(MeCN)(dppe)] and [ReBr3(NO)(dppe)]0.57[ReOBr3(dppe)]0.43 and DFT calculations for [ReBr3(NO)(dppe)] and [ReOBr3(dppe)]
✍ Scribed by B. Machura; R. Kruszynski; M. Jaworska
- Book ID
- 104058325
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 361 KB
- Volume
- 740
- Category
- Article
- ISSN
- 0022-2860
No coin nor oath required. For personal study only.
✦ Synopsis
The [ReOBr 3 (dppe)] (dppeZbis(diphenylophosphino)ethane) complex reacts with acetonitrile in the presence of excess of triphenylphpsphine to give a new monomeric nitrile rhenium(III) complex-[ReBr 3 (MeCN)(dppe)] (1). The reaction of 1 with gaseous nitric oxide leads to the mixed [ReBr 3 (NO)(dppe)] 0.57 [ReOBr 3 (dppe)] 0.43 complex (2) with rhenium atoms on C2 and C5 oxidation states. This paper presents the synthesis, spectroscopic characterisation and X-ray structure of 1 and 2. The geometries of [ReBr 3 (NO)(dppe)] and [ReOBr 3 (dppe)] have been optimized using the density functional theory (DFT) and the electronic transitions of [ReBr 3 (NO)(dppe)] and [ReOBr 3 (dppe)] have been calculated with the time-dependent DFT method (TDDFT). The UV-vis spectrum of 2 has been interpreted on the basis of the experimental data for [ReOBr 3 (dppe)] and the calculated transitions for [ReOBr 3 (dppe)] and [Re(NO)Br 3 (dppe)].