New complexes of the fac-{(CO)3Re+} fragment bearing a diaminediphosphine ligand

The mono- and binuclear hydride compounds fac-[ReH(CO)3L] (1a) and [{ReH(CO)4}2(μ-L)] (1b) have been prepared by reaction of [ReH(CO)5] with Ph2PN(CH3)(CH2)2N(CH3)PPh2 (L) under UV light. Protonation reactions of the hydride compound 1a with equimolar amounts of HSO3CF3 or HCl yielded the triflato or the chlorido compounds fac-[Re(OSO2CF3)(CO)3L] (2) and fac-[ReCl(CO)3L] (3), respectively. The compounds have been characterised by elemental analysis, IR and NMR spectroscopic data, and mass spectrometry. Their structures have been confirmed by X-ray crystallography.

Graphical abstractThe mono- and binuclear hydride compounds fac-[ReH(CO)3L] (1a) and [{ReH(CO)4}2(μ-L)] (1b) have been prepared by reaction of [ReH(CO)5] with Ph2PN(CH3)(CH2)2N(CH3)PPh2 (L) under UV light. Protonation reactions of the hydride compound 1a with equimolar amounts of HSO3CF3 or HCl yielded the triflato or the chlorido compounds fac-[Re(OSO2CF3)(CO)3L] (2) and fac-[ReCl(CO)3L] (3), respectively. The compounds have been characterised by elemental analysis, IR and NMR spectroscopic data, and mass spectrometry. Their structures have been confirmed by X-ray crystallography.Figure optionsDownload full-size imageDownload as PowerPoint slide