Ferrocene Linked to PtL2 Fragments (L2 = Cl2, Fumaronitrile, 3,6-Di-tert-butylcatecholato): A Spectroscopic and Theoretical Investigation of Redox Behavior and Charge Distributions
摘要:
The optical and redox properties of a ferrocene-appended diimine ligand (1) and its PtL2 complexes [L-2 = Cl-2 (2), fumaronitrile (3), 3,6-di-tert-butylcatecholato (4)] are reported. The chromophores are characterized by NMR, UV/vis, and IR spectroscopy as Well as cyclic voltarnmetry. Preparative oxidations to radical cations using "Magic Blue" [N(p-C6H4Br)(3)][SbCl6] or silver triflate in conjunction with UV/ vis, NMR, and EPR spectroscopy were used to probe the chloride-dependent redox chemistry of ligand I and platinum complexes 2-4. Density functional calculations were employed to corroborate geometric and electronic descriptions of 1-4 and their oxidized counterparts.
Ferrocene Linked to PtL2 Fragments (L2 = Cl2, Fumaronitrile, 3,6-Di-tert-butylcatecholato): A Spectroscopic and Theoretical Investigation of Redox Behavior and Charge Distributions
摘要:
The optical and redox properties of a ferrocene-appended diimine ligand (1) and its PtL2 complexes [L-2 = Cl-2 (2), fumaronitrile (3), 3,6-di-tert-butylcatecholato (4)] are reported. The chromophores are characterized by NMR, UV/vis, and IR spectroscopy as Well as cyclic voltarnmetry. Preparative oxidations to radical cations using "Magic Blue" [N(p-C6H4Br)(3)][SbCl6] or silver triflate in conjunction with UV/ vis, NMR, and EPR spectroscopy were used to probe the chloride-dependent redox chemistry of ligand I and platinum complexes 2-4. Density functional calculations were employed to corroborate geometric and electronic descriptions of 1-4 and their oxidized counterparts.