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[ReO(N2O2)X] complexes: "4 + 1"?

L Xu·M P Lowe·S J Rettig·C Orvig
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Abstract

[ReO(ppme)X] (where ppme(2-) is 2,5-diazo-N,N'-dimethylhexyl-1,6-bis(phenylphosphinate), X = Br0.3Cl0.7) has been synthesized via a substitution reaction and structurally characterized. The coordination geometry is a distorted octahedron and one phosphinate coordinates cis and the other trans to the oxo O atom. This coordination mode is conserved in all [ReOppmeX] complexes synthesized in this study. [ReO(ppme)Cl] has been prepared by a reduction/complexation reaction from [NH4][ReO4]. [ReO(ppme)Cl] reacts with thiocyanate and benzene thiolate forming [ReO(ppme)X] (X = (-)NCS, (-)SC6H5), but the one-pot synthesis of the respective ternary thiolate complexes from perrhenate was not successful. The reduction/complexation reaction of a thiol, H2ppmeCl4, and perrhenate resulted in the formation of [H3ppme][ReO(SR)4], the reaction of which with [ReO(ppme)Cl] does not lead to [ReO(ppme)SR] in high yields.

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Chelating AgentsChromatography, High Pressure LiquidCrystallography, X-RayIndicators and ReagentsLigandsModels, MolecularOrganometallic CompoundsPhosphinic AcidsRadioisotopesRadiopharmaceuticalsRheniumSpectrophotometry, InfraredJournal ArticleResearch Support, Non-U.S. Gov't

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L Xu, M P Lowe, S J Rettig, C Orvig. 2001-08-27. [ReO(N2O2)X] complexes: "4 + 1"?. https://doi.org/10.1021/ic001416g

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