Bidentate aryldichalcogenide complexes of [(diphosphino)ferrocene]palladium(II) and [(diphosphino)ferrocene]platinum(II). Synthesis, molecular structures and electrochemistry

Date
2001, 2001
Authors
Maisela L.L.
Crouch A.M.
Darkwa J.
Guzei I.A.
Maisela L.L.
Crouch A.M.
Darkwa J.
Guzei I.A.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
A series of homochalcogenide and mixed-chalcogenide ligand complexes of palladium and platinum have been prepared from the reactions of Pd(dppf)Cl2, (dppf = 1,1′-bis(diphenylphosphino)ferrocene), Pd(dippf)Cl2 (1,1′-bis(diisopropylphosphino)ferrocene), and Pt(dppf)Cl2 with 1,2-benzenedithiol (HSC6H4SH) (a), 3,4-toluenedithiol (HSC6H3MeSH) (b), 3,6-dichloro-1,2-benzenedithiol (HSC6H2Cl2SH) (c), 2-mercaptophenol (HSC6H4OH) (d), thiosalicylic acid (HSC6H4CO2H) (e) and thionicotinic acid (HSC6H3NCO2H) (f). Single-crystal X-ray diffraction studies show that all complexes have distorted square-planar geometry. The complexes undergo two quasi-reversible or irreversible one-electron redox processes that involve the chalcogen ligands and diphosphinoferrocene ligands. The oxidation potentials of the chalcogen ligands increase when they bear electron-withdrawing substituents. © 2001 Elsevier Science Ltd. All rights reserved.
A series of homochalcogenide and mixed-chalcogenide ligand complexes of palladium and platinum have been prepared from the reactions of Pd(dppf)Cl2, (dppf = 1,1′-bis(diphenylphosphino)ferrocene), Pd(dippf)Cl2 (1,1′-bis(diisopropylphosphino)ferrocene), and Pt(dppf)Cl2 with 1,2-benzenedithiol (HSC6H4SH) (a), 3,4-toluenedithiol (HSC6H3MeSH) (b), 3,6-dichloro-1,2-benzenedithiol (HSC6H2Cl2SH) (c), 2-mercaptophenol (HSC6H4OH) (d), thiosalicylic acid (HSC6H4CO2H) (e) and thionicotinic acid (HSC6H3NCO2H) (f). Single-crystal X-ray diffraction studies show that all complexes have distorted square-planar geometry. The complexes undergo two quasi-reversible or irreversible one-electron redox processes that involve the chalcogen ligands and diphosphinoferrocene ligands. The oxidation potentials of the chalcogen ligands increase when they bear electron-withdrawing substituents. © 2001 Elsevier Science Ltd. All rights reserved.
Description
Keywords
chalcogen; ferrocene; nicotinic acid derivative; palladium complex; phenol derivative; platinum complex; thiosalicylic acid; unclassified drug; article; complex formation; electrochemistry; electron transport; ligand binding; oxidation; reaction analysis; synthesis; X ray diffraction, chalcogen, ferrocene, nicotinic acid derivative, palladium complex, phenol derivative, platinum complex, thiosalicylic acid, unclassified drug, article, complex formation, electrochemistry, electron transport, ligand binding, oxidation, reaction analysis, synthesis, X ray diffraction
Citation
Polyhedron
20
26-27
Polyhedron
20
26-27