S. Dehghanpour, A. Mahmoudi, S. Rostami
Jul 8, 2010
Citations
0
Influential Citations
15
Citations
Journal
Polyhedron
Abstract
Abstract Four platinum(II) complexes, [PtCl 2 L] (L = (4-fluorophenyl)pyridin-2-ylmethylene-amine, 1 ; (4-chlorophenyl)pyridin-2-ylmethyleneamine, 2 ; (4-bromophenyl)pyridin-2-ylmethyleneamine, 3 and (4-iodophenyl)pyridin-2-ylmethyleneamine, 4 ) have been synthesized and characterized by CHN analysis, IR and UV–Vis spectroscopy. The crystal structures of 1 and 2 were determined using single crystal X-ray diffraction. The coordination polyhedron about the platinum (II) center in the complexes is best described as distorted square planar. The complexes undergo stacking to form a zigzag Pt···Pt···Pt chain containing both short (3.57(7) A in 1 and 3.62(8) A in 2 ) and long (5.16(7) A in 1 and 5.41(9) A in 2 ) Pt···Pt separations through the crystal. The compounds absorb moderately in the visible region, owing to a charge-transfer-to-diimine electronic transition. The redox potentials are approximately insensitive to the substituents on the phenyl ring of the ligands.