Investigations of the {ReO}3+ core: A ‘2+2’ complex from bidentate and potentially trident ligands: ReO(η2-HOC6H4-2-CH2NC6H4S)(η2-SC5H4N)(PPh3)

摘要

The reaction of [ReOCl3(PPh3)2] with N-(2-hydroxybenzyl)-2-mercaptoaniline (H3hbma) (>2) and 2-mercaptopyridine in hot CHCl yields [ReO(η²-HOC⁶H4-2-CH2NC6H4S)(η²-SC5H4N)(PPh3)] (>3). The structure of >3 consists of distorted octahedral Re(V) monomers. The coordination geometry at the rhenium is defined by a terminal oxo-group, the nitrogen and sulfur donors of the chelating mercaptopyridine, the nitrogen and sulfur donors of a bidentate (Hhbma)²⁻ ligand, and the phosphorus of the PPh3 group. The −C6H4OH arm of (Hhbma)²⁻ is pendant, and the coordinated nitrogen of this ligand is present as a deprotonated amido nitrogen.