{μ-5-[1,3-Bis(2,4,6-trimethylphenyl)-3H-imidazolium-2-yl]-2-(2-oxoethenyl-1κC1)furan-3-yl-2κC3}-μ-hydrido-bis(tetracarbonylrhenium) tetrahydrofuran 0.67-solvate

Abstract

The title complex, [Re2(C27H25N2O2)H(CO)8]·0.67C4H8O, was formed as a product in the reaction of a rhenium(I)–Fischer carbene complex with a free NHC carbene. The coordination environment about the two Re atoms is slightly distorted octahedral, including a bridging H atom. The imidazolium and furan groups are almost coplanar, whereas the mesityl substituents show an almost perpendicular arrangement with respect to both heterocyclic units. Molecules of the complex pack in such a way as to form channels parallel with the bc unit-cell face diagonal running through the unit face diagonal. These channels are partially occupied by tetrahydrofuran solvent molecules.