Crystal structure of dicarbonyl (μ2-indole-2-carboxylato κ2 O:O′)tris(triphenylarsine-κAs)dirhodium(I) acetone solvate, C68H56As3NO5Rh2
| dc.contributor.author | Alexander, Orbett T. | |
| dc.contributor.author | Elmakki, Mohammed A. | |
| dc.contributor.author | Venter, Johan A. | |
| dc.date.accessioned | 2025-08-11T13:20:34Z | |
| dc.date.available | 2025-08-11T13:20:34Z | |
| dc.date.issued | 2024 | |
| dc.description.abstract | Background: The complex was synthesized starting with the reduction of hydrated RhCl3 in DMF which was refluxed for approxi mately 20 min to give a yellow solution of di-μ-chloro-tetra carbonyldirhodium(I), [RhCl(CO)2]2. 5–7 The addition of an equivalent amount of indol-2-carboxylic acid (indol(H2)) to the aforementioned yellow solution followed by addition of ice water yielded the dicarbonylrhodium(I) complex, [RhI(indol)(CO)2] by precipitation. The anion formed by double deprotonation of the indole-2-carboxylic acid (indol(H2)) ligand displays an unprecedented and unex pected mode of coordination with Rh(I) by forming bridging ligand to two rhodium centers; the ketonic oxygen atom coordinating (κO) to the Rh2 atom, while the N,O atoms bind to a second rhodium atom Rh1 atom in the more familiar bidentate (κN,O) fashion. The dinuclear title complex sim plifies as [Rh(indol)(CO)(AsPh3)Rh(CO)(AsPh3)2].8 [Rh(indol)(- CO)(AsPh3)Rh(CO)(AsPh3)2] was synthesized by dissolving [Rh(indol)(CO)2] (0.0412 g, 0.1291 mmol) in 5 cm3 of acetone. Triphenylarsine (AsPh3) (0.0396 g, 0.1291 mmol) was added to the solution with stirring, resulting in the immediate evolution of CO gas. After a few minutes the reaction was completed as determined by IR spectroscopy. Ice water was added drop-wise to the solution. A yellow precipitate was filtered off and dried. | |
| dc.identifier.citation | Elmakki, M.A., Alexander, O.T., Venter, J.A. and Roodt, A., 2024. Crystal structure of dicarbonyl (μ2-indole-2-carboxylato κ2 O: O′) tris (triphenylarsine-κAs) dirhodium (I) acetone solvate, C68H56As3NO5Rh2. Zeitschrift für Kristallographie-New Crystal Structures, (0). | |
| dc.identifier.uri | https://doi.org/10.1515/ncrs-2024-0357 | |
| dc.identifier.uri | https://hdl.handle.net/10566/20681 | |
| dc.language.iso | en | |
| dc.publisher | De Gruyter | |
| dc.subject | Crystal structure | |
| dc.subject | Dicarbonyl | |
| dc.subject | Acetone solvate | |
| dc.subject | Rhodium centers | |
| dc.subject | Oxygen | |
| dc.title | Crystal structure of dicarbonyl (μ2-indole-2-carboxylato κ2 O:O′)tris(triphenylarsine-κAs)dirhodium(I) acetone solvate, C68H56As3NO5Rh2 | |
| dc.type | Article |