Crystal structure of fac-tricarbonyl(cyclohexyl isocyanide-kappa C)(quinoline-2-carboxylato-kappa N-2,O)-rhenium(I)

In the title compound, [Re(C10H6NO2)(C7H11N)(CO)(3)], the Re-I atom is coordinated by three carbonyl ligands in a facial arrangement and by the N, O and C atoms from a chelating quinaldate anion and a monodentate isocyanide ligand, respectively. The resultant C4NO coordination sphere is distorted octahedral. A lengthening of the axial Re-CO bond trans to the isocyanide ligand is indicative of the trans effect. Individual complexes are stacked into rods parallel to [001] through displaced pi-pi interactions. Weak C-H center dot center dot center dot O hydrogen-bonding interactions between the rods lead to the formation of layers parallel to (010). These layers are stacked along [ 010] by C-H center dot center dot center dot H-C van der Waals contacts.