Synthesis, spectral characterization, properties and structure of dinuclear rhenium complex containing bis[4-(2-pyridylmethyleneamino)phenyl]methane ligand

Bromidotricarbon-yl[4-chloro-N-(2-pyridyl-methyl-idene)aniline-κN,N']rhenium(I)

In the title compound, [ReBr(C₁₂H₉ClN₂)(CO)₃], the Re^I atom has a distorted octa­hedral configuration with the three carbonyl ligands showing a facial arrangement. The main distortion of the octa­hedron is due to a small bite angle of the chelating bidentate diimine ligand [N—Re—N = 75.3 (3)°].

Bromidotricarbon-yl[4-iodo-N-(pyridin-2-yl-methyl-idene)aniline-κN,N']rhenium(I)

In the title compound, [ReBr(C₁₂H₉IN₂)(CO)₃], the coordination geometry of the Re^I ion is a distorted fac-ReC₃BrN₂ octa­hedron, arising from the N,N′-bidentate ligand, a bromide ion and a facial arrangement of three carbonyl ligands. The dihedral angle between the aromatic rings in the 4-iodo-N-(pyridin-2-yl­methyl­idene)aniline ligand is 46.2 (3)°. The bromide ion and its corresponding trans CO mol­ecule are disordered over two sets of sites in a 0.966 (3):0.034 (3) ratio.