名称:
Tricarbonylrhenium(I) Bromide Complexes With Diimine Ligands: Structural, Electrochemical, and Spectroscopic Studies
摘要:
Four rhenium(I) complexes, [Re(CO)(3)Br(L-n)] (n = 1-4), [L-n = (4-fluorophenyl)pyridin-2-ylmethyleneamine (L-1), (4-chlorophe nyl)pyridin-2-ylmethyleneamine (L-2), (4-bromophenyl)pyridin-2-ylmethyleneamine (L-3), and (4-iodophenyl)pyridin-2-ylmethyleneamine, (L-4)] have been synthesized and characterized by CHN analyses, H-1, C-13-NMR, IR, and UV-vis spectroscopy. The molecular structure of [Re(CO)(3)Br(L-1)] is a distorted octahedron around rhenium with one Br, facial arrangement of three COs, and one diimine. UV-vis absorption and emission properties of the complexes have been studied at room temperature and the redox potentials are approximately insensitive to the substituent on the phenyl ring of ligands.