Chemical control of competing electron transfer pathways in iron tetracyano-polypyridyl photosensitizers

photosensitizers: effect of varied linker conjugation on interfacial electron transfer†

The efficient capture and conversion of solar energy into a usable form is a significant research target. Dye-sensitized systems, such as dye-sensitized solar cells (DSSCs) and watersplitting dye-sensitized photoelectrochemical cells (WSDSPECs), utilize high surface area metal oxide scaffolds sensitized with a molecular light-absorbing dye to harvest sunlight and convert it into an electrical p...

Iron-sulphur clusters in electron transfer, catalysis and control.

594 Iron-sulphur clusters in electron transfer, catalysis and control Andrew J. Thomson, Jacques Breton, Simon J. George, Julea N. Butt,* Fraser A. Armstrong* and E. Claude Hatchikiant School of Chemical Sciences, University of East Anglia, Norwich NR4 7TJ, U.K., *Department of Chemistry, University of California at Irvine, Irvine, CA 927 17, U.S.A., and tCNRS-LCB., 3 I , Chemin Joseph, Aiguier...

Electron Transfer Pathways in Cell

Photoselected electron transfer pathways in DNA photolyase.

Cyclobutane dimer photolyases are proteins that bind to UV-damaged DNA containing cyclobutane pyrimidine dimer lesions. They repair these lesions by photo-induced electron transfer. The electron donor cofactor of a photolyase is a two-electron-reduced flavin adenine dinucleotide (FADH(-)). When FADH(-) is photo-excited, it transfers an electron from an excited pi --> pi* singlet state to the py...

Respiratory electron transfer pathways in plant mitochondria

The respiratory electron transport chain (ETC) couples electron transfer from organic substrates onto molecular oxygen with proton translocation across the inner mitochondrial membrane. The resulting proton gradient is used by the ATP synthase complex for ATP formation. In plants, the ETC is especially intricate. Besides the "classical" oxidoreductase complexes (complex I-IV) and the mobile ele...