Abstract
AbstractThe hydrido complexes [ReH(Cl)(N–N)P3]BPh4 [P = PPh(OEt)2; N–N = 2,2′‐bipyridine (bpy), 5,5′‐dimethylbipyridine (5,5′‐Me2bpy), 1,10‐phenanthroline (phen)] have been prepared by allowing ReCl3P3 to react with the polypyridine in refluxing ethanol. The dihydrido [ReH2(bpy)P3]BPh4 complex has also been prepared by treating [ReHCl(bpy)P3]+ cation with NaBH4 in ethanol. Similarly, the hydrido tricarbonyl derivative [ReH2(bpy)(CO)3]BPh4 has been synthesized by allowing [ReH(bpy)(CO)3] to react with HBF4·Et2O. All complexes have been characterized spectroscopically (IR and NMR spectroscopic data) and the [ReHCl(bpy){PPh(OEt)2}3]BPh4 derivative by X‐ray crystallography. Protonation of both [ReHCl(bpy)P3]BPh4 and [ReH2(bpy)P3]BPh4 with HBF4·Et2O leads to the classical cations [ReH2Cl(bpy)P3]2+ and [ReH3(bpy)P3]2+, respectively. The vinyl complexes [Re{CH=C(H)R}2(bpy)P3]BPh4 (R = Ph, p‐tolyl, tert‐butyl) have also been prepared by allowing the dihydrido derivative [ReH2(bpy)P3]BPh4 to react with an excess of terminal alkyne in 1,2‐dichloroethane.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
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