Synthesis and Photophysics of One Mononuclear Mn(III) and One Dinuclear Mn(III,III) Complex Covalently Linked to a Ruthenium(II) Tris(bipyridyl) Complex
- 16 October 2003
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 42 (23) , 7502-7511
- https://doi.org/10.1021/ic0344822
Abstract
The preparation of donor (D)−photosensitizer (S) arrays, consisting of a manganese complex as D and a ruthenium tris(bipyridyl) complex as S has been pursued. Two new ruthenium complexes containing coordinating sites for one (2a) and two manganese ions (3a) were prepared in order to provide models for the donor side of photosystem II in green plants. The manganese coordinating site consists of bridging and terminal phenolate as well as terminal pyridyl ligands. The corresponding ruthenium−manganese complexes, a manganese monomer 2b and dimer 3b, were obtained. For the dimer 3b, our data suggest that intramolecular electron transfer from manganese to photogenerated ruthenium(III) is fast, kET > 5 × 107 s-1.Keywords
This publication has 31 references indexed in Scilit:
- An evaluation of structural models for the photosynthetic water-oxidizing complex derived from spectroscopic and X-ray diffraction signaturesJBIC Journal of Biological Inorganic Chemistry, 2001
- Intramolecular Electron Transfer from Mn or Ligand Phenolate to Photochemically Generated RuIII in Multinuclear Ru/Mn Complexes. Laser Flash Photolysis and EPR Studies on Photosystem II ModelsJournal of the American Chemical Society, 1999
- Hydrogen Bonding, Solvent Exchange, and Coupled Proton and Electron Transfer in the Oxidation and Reduction of Redox-Active Tyrosine YZ in Mn-Depleted Core Complexes of Photosystem IIBiochemistry, 1998
- Intramolecular Electron Transfer from Manganese(II) Coordinatively Linked to a Photogenerated Ru(III)−Polypyridine Complex: A Kinetic AnalysisThe Journal of Physical Chemistry A, 1998
- Mimicking Electron Transfer Reactions in Photosystem II: Synthesis and Photochemical Characterization of a Ruthenium(II) Tris(bipyridyl) Complex with a Covalently Linked TyrosineJournal of the American Chemical Society, 1997
- Proximity of Acetate, Manganese, and Exchangeable Deuterons to Tyrosine YZ• in Acetate-Inhibited Photosystem II Membranes: Implications for the Direct Involvement of YZ• in Water-SplittingBiochemistry, 1997
- EPR Spectra from “EPR-Silent” Species: High-Field EPR Spectroscopy of Manganese(III) PorphyrinsJournal of the American Chemical Society, 1997
- Aggregation of alkyltrimethylammonium surfactants in aqueous poly(styrenesulfonate) solutionsLangmuir, 1992
- Simulation strategies for unusual EPR spectra of binuclear mixed-valence manganese complexes: synthesis, properties, and x-ray structures of the MnIIMnIII complexes [Mn2(bpmp)(.mu.-OAc)2](ClO4)2.cntdot.H2O and [Mn2(bcmp)(.mu.-OAc)2](ClO4)2.cntdot.CH2Cl2Journal of the American Chemical Society, 1989
- Synthesis of .gamma.- and .delta.-(1,3-dithianyl) .beta.-keto estersThe Journal of Organic Chemistry, 1978