[(1,2,5,6-η)-Cyclo-octa-1,5-diene](4-isopropyl-1-methyl-1,2,4-triazol-5-yl-idene)(tri-cyclo-hexyl-phosphane-κ P )iridium(I) tetra-fluorido-borate di-chloro-methane monosolvate.

The title compound, [Ir(C 8 H 12 )(C 6 H 11 N 3 )(C 18 H 33 P)]BF 4 ·CH 2 Cl 2 , a triazole-based N-heterocyclic carbene iridium(I) cationic complex with a tetra-fluorido-borate counter-anion, crystallizes with one di-chloro-methane solvent mol-ecule per formula unit. The Ir I atom of the cationic complex has a distorted square-planar coordination environment, defined by a bidentate cyclo-octa-1,5-diene (COD) ligand, an N-heterocyclic carbene, and a tri-cyclo-hexyl-phosphane ligand. The complex crystallizes in a C -centered monoclinic unit cell and has an unusually high number of eight formula units.