Crystal structure of {(E)-2-[(3,4-dimethoxyphenylimino)methyl]phenolato-κ2N,O1}bis[2-(pyridin-2-yl)phenyl-κ2C1,N]iridium(III) dichloromethane disolvate

Abstract

The asymmetric unit of the solvated title complex, [Ir(C11H8N)2(C15H14NO3)]·2CH2Cl2, consists of two complex molecules together with four dichloromethane solvent molecules, one of which is disordered. In each complex molecule, the IrIII ion has a distorted octahedral coordination environment defined by two 2-phenylpyridine ligands, through two phenyl C and two pyridine N atoms, and by one N,O-bidentate 2-[(2,4-dimethoxyphenylimino)methyl]phenolate anion. The IrIII ions lie almost in the equatorial planes with deviations of 0.0396 (17) and 0.0237 (17) Å, respectively, for the two complex molecules. In both complex molecules, the two 2-phenylpyridine ligands are nearly perpendicular to each other [dihedral angles between the least-squares-planes of 89.91 (11) and 85.13 (11)°]. In the crystal, intermolecular C—H...O interactions as well as intermolecular C—H...π interactions are present, leading to a three-dimensional network structure. One of the four dichlormethane solvent molecules shows disorder over two sets of sites [occupancy ratio 0.79 (2):0.21 (2)].

Keywords

• crystal structure
• cyclometalated iridium(III) complex
• Schiff base ligand
• C2N3O coordination set