Intervalence Transfer in Mixed-valence Dimers of Ruthenium and Osmium PDF Download
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Author: Kenneth A. Goldsby
Publisher:
ISBN:
Category : Charge transfer
Languages : en
Pages : 440
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Author: Kenneth A. Goldsby
Publisher:
ISBN:
Category : Charge transfer
Languages : en
Pages : 440
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Author: Michael Jay Powers
Publisher:
ISBN:
Category : Iron
Languages : en
Pages : 398
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Author: Yuwu Zhong
Publisher: John Wiley & Sons
ISBN: 3527349804
Category : Science
Languages : en
Pages : 517
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Mixed-Valence Systems Comprehensive overview on the advanced development of mixed-valence chemistry Mixed-Valence Systems: Fundamentals, Synthesis, Electron Transfer, and Applications covers all topics related to the theory and experimental results of mixed-valence systems, including the design, synthesis, and applications of mixed-valence compounds containing inorganic, organometallic and organic redox-active centers. The text also covers the recent advances in mixed-valence chemistry, including the development of new mixed-valence systems, transition of mixed valency, better understanding of the spectral characteristics of intervalence charge transfer, and controllable electron transfer related to molecular electronics. In Mixed-Valence Systems, readers can expect to find detailed information on sample topics such as: Characterization and evaluation of mixed-valence systems, electron paramagnetic resonance spectroscopy, and electrochemical methods Optical analysis, important issues in mixed-valence chemistry, transition of mixed valency from localized to delocalized, and solvent control of electron transfer Theoretical background, potential energy surfaces from classical two-state model, and quantum description of the potential energy surfaces Reorganization energies, electronic coupling matrix element and the transition moments, generalized Mulliken–Hush theory, and analysis of the band shape of intervalence charge transfer Strengthening the relationship of mixed-valence electron transfer and molecular electronics, Mixed-Valence Systems is of immense value to researchers and professionals working in the field of electron transfer, molecular electronics, and optoelectronics.
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 806
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Author: Jane Susan Henderson
Publisher:
ISBN: 9781321848304
Category :
Languages : en
Pages : 10
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Mixed-valence dimers of the type Ru3(O)(OAc)6(CO)L-BL-Ru3(O)(OAc)6(CO)L (BL = bridging ligand and L = a pyridyl ligand) form strongly coupled systems in their [Ru3III,III,II-BL- Ru3III,II,II]- state, observed by intervalence charge transfer (IVCT) bands in the near-IR. Ancillary ligand substitution has been shown to control bimolecular electron transfer rates from electronically excited zinc tetraphenylporphyrin (ZnTPP); quenching constants, kq, for 3ZnTPP* are 3.0 × 109, 1.5 × 109, and 1.1 × 109 M−1 s−1 for BL = pyrazine (pz), L = 4-cyanopyridine (cpy), pyridine (py), or 4-dimethylaminopyridine (dmap), respectively. The preparation, electrochemistry, and spectroscopic characterization of three new species, Ru3(O)(OAc)6(CO)(ZnTPPpy)-pz-Ru3(O)(OAc)6(CO)L, where ZnTPPpy = zinc(II) 5-(4-pyridyl)- 10,15,20-triphenylporphyin and L = dmap, py or cpy, are reported. Observation of IVCT band growth under continual photolysis ([lambda]exc = 568 nm) confirms a phototriggered intramolecular electron transfer from Zn porphyrin to the Ru3O donor-bridge-acceptor dimer, resulting in a strongly coupled mixed-valence species. Femtosecond transient absorption spectroscopy was implemented to follow photoinduced electron transfer reactions in the series of asymmetric porphyrin-coordinated dyads. Excitation of the porphyrin subunit resulted in electron transfer to the Ru3O dimer with a time constant [tau] ≈ 0.6 ps. The intramolecular electron transfer was confirmed by excitation of the Ru3O MLCT, which resulted in the formation of a vibrationally unrelaxed porphyrin ground state. Under both excitation experiments, the back electron transfer was extremely fast ([tau]CR
Author:
Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 574
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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 712
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Author: Heinz Juergen Krentzien
Publisher:
ISBN:
Category : Complex compounds
Languages : en
Pages : 546
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![Mixed-valence Complexes of Ruthenium and Osmium with 2, 7-Bis (2-pyridyl)-1, 8-naphthyridine ; Trischelated Complexes of Ruthenium with 2-(2-Pyridyl)-1, 8-naphthyridine and 5, 6-Dihydrodipyrido [2, 3-b: 3 ́, 2 ́-j]-1, 10-phenanthroline PDF](https://books.google.com/books/content/images/frontcover/K8iuygAACAAJ?fife=w80-h100)
Author: Elizabeth Binamira Soriaga
Publisher:
ISBN:
Category :
Languages : en
Pages : 378
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Author: Casey Hughes Londergan
Publisher:
ISBN:
Category :
Languages : en
Pages : 320
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