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- W2049718025 abstract "Abstract A new artificial photosynthetic triad array, a [60]fullerene–triosmium cluster/zinc–porphyrin/boron–dipyrrin complex ( 1 , Os 3 C 60 /ZnP/Bodipy), has been prepared by decarbonylation of Os 3 (CO) 8 (CN(CH 2 ) 3 Si(OEt) 3 )(μ 3 ‐η 2 :η 2 :η 2 ‐C 60 ) ( 6 ) with Me 3 NO/MeCN and subsequent reaction with the isocyanide ligand CNZnP/Bodipy ( 5 ) containing zinc porphyrin (ZnP) and boron dipyrrin (Bodipy) moieties. Triad 1 has been characterized by various spectroscopic methods (MS, NMR, IR, UV/Vis, photoluminescence, and transient absorption spectroscopy). The electrochemical properties of 1 in chlorobenzene (CB) have been examined by cyclic voltammetry; the general feature of the cyclic voltammogram of 1 is nine reversible one‐electron redox couples, that is, the sum of those of 5 and 6 . DFT has been applied to study the molecular and electronic structures of 1 . On the basis of fluorescence‐lifetime measurements and transient absorption spectroscopic data, 1 undergoes an efficient energy transfer from Bodipy to ZnP and a fast electron transfer from ZnP to C 60 ; the detailed kinetics involved in both events have been elucidated. The SAM of triad 1 ( 1 /ITO; ITO=indium–tin oxide) has been prepared by immersion of an ITO electrode in a CB solution of 1 and diazabicyclo‐octane (2:1 equiv), and characterized by UV/Vis absorption spectroscopy, water contact angle, X‐ray photoelectron spectroscopy, and cyclic voltammetry. The photoelectrochemical properties of 1 /ITO have been investigated by a standard three‐electrode system in the presence of an ascorbic acid sacrificial electron donor. The quantum yield of the photoelectrochemical cell has been estimated to be 29 % based on the number of photons absorbed by the chromophores. Our triad 1 is unique when compared to previously reported photoinduced electron‐transfer arrays, in that C 60 is linked by π bonding with little perturbation of the C 60 electron delocalization." @default.
- W2049718025 created "2016-06-24" @default.
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- W2049718025 date "2010-05-07" @default.
- W2049718025 modified "2023-10-18" @default.
- W2049718025 title "Remarkably Efficient Photocurrent Generation Based on a [60]Fullerene-Triosmium Cluster/Zn-Porphyrin/Boron-Dipyrrin Triad SAM" @default.
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- W2049718025 doi "https://doi.org/10.1002/chem.201000215" @default.
- W2049718025 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/20401879" @default.
- W2049718025 hasPublicationYear "2010" @default.
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