(Carbazol-9-ido-κN)dichlorido(η⁵:η¹-2,3,4,5-tetramethylpentafulvene)tantalum(V)

The reaction of (η 5 :η 1 -2,3,4,5-tetramethylpentafulvene)tantalum(V) dicarbazolide chloride ( 1 ) with etheric HCl results in the formation of the title compound ( 2 ), [Ta(C 10 H 14 )(C 12 H 8 N)Cl 2 ]. The Ta V atom has a distorted tetrahedral coordination environment in a three-legged piano-stool fashion. The conformation of the pentafulvene exocyclic C atom to the three other ligands is staggered and not eclipsed, as found in the crystal structure of 1 . Intermolecular interactions include π–π stacking, H...π interactions and weak C—H...Cl hydrogen bonds.