Syntheses and structures of pyrazolylmethane complexes of rhenium(iii), (iv) and (v)
Abstract
Reaction of [ReOCl3(PPh3)2] with HCpz3 (pz = pyrazole) in Cl, [ReO4]) with loss of the rhenium-oxo group. We also report a convenient, high-yield synthetic route to complexes of the type [ReOXn(L)](3 −
n)+ (X
Cl, Br, n = 2, 3) by the reaction of bis(pyrazolylmethane) and bis(pyrazolylacetate)
Re–O–Re
O group were also isolated and structurally characterised. We have also investigated the reactions of these