Electron-transfer oxidation of ketene silyl acetals and other organosilanes. Mechanistic insight into Lewis acid mediated electron transfer

1992 ◽  
Vol 114 (26) ◽  
pp. 10271-10278 ◽  
Author(s):  
Shunichi Fukuzumi ◽  
Morifumi Fujita ◽  
Junzo Otera ◽  
Yukihiro Fujita
Keyword(s):  
Electron Transfer ◽  
Lewis Acid ◽  
Mechanistic Insight ◽  
Mediated Electron Transfer ◽  
Silyl Acetals ◽  
Insight Into

Importance of Lewis acid mediated electron transfer in Mukaiyama-Michael reaction of ketene silyl acetals

1991 ◽  
Vol 113 (10) ◽  
pp. 4028-4030 ◽  
Author(s):  
Tsuneo Sato ◽  
Yoshiyuki Wakahara ◽  
Junzo Otera ◽  
Hitosi Nozaki ◽  
Shunichi Fukuzumi
Keyword(s):  
Electron Transfer ◽  
Lewis Acid ◽  
Michael Reaction ◽  
Mediated Electron Transfer ◽  
Silyl Acetals

ChemInform Abstract: Importance of Lewis Acid Mediated Electron Transfer in Mukaiyama- Michael Reaction of Ketene Silyl Acetals.

ChemInform ◽  
2010 ◽  
Vol 22 (34) ◽  
pp. no-no
Author(s):  
T. SATO ◽  
Y. WAKAHARA ◽  
J. OTERA ◽  
H. NOZAKI ◽  
S. FUKUZUMI
Keyword(s):  
Electron Transfer ◽  
Lewis Acid ◽  
Michael Reaction ◽  
Mediated Electron Transfer ◽  
Silyl Acetals

scholarly journals Mechanistic insight into proton-coupled mixed valency

2016 ◽  
Vol 52 (1) ◽  
pp. 100-103 ◽  
Author(s):  
Luke A. Wilkinson ◽  
Kevin B. Vincent ◽  
Anthony J. H. M. Meijer ◽  
Nathan J. Patmore
Keyword(s):  
Electron Transfer ◽  
Valence State ◽  
Mixed Valence ◽  
Bridging Ligands ◽  
Mixed Valency ◽  
Mixed Valence State ◽  
Mechanistic Insight ◽  
Insight Into

Stabilisation of the mixed-valence state in [Mo2(TiPB)3(HDOP)]2+ (HTiPB = 2,4,6-triisopropylbenzoic acid, H2DOP = 3,6-dihydroxypyridazine) by electron transfer (ET) is related to the proton coordinate of the bridging ligands.

New insight into hydrogen bond-mediated electron transfer

2019 ◽  
Vol 62 (8) ◽  
pp. 927-928 ◽  
Author(s):  
Zhong-Liang Gong ◽  
Yu-Wu Zhong
Keyword(s):  
Hydrogen Bond ◽  
Electron Transfer ◽  
Mediated Electron Transfer ◽  
Insight Into

Mechanism of H+ dissociation–induced O–O bond formation via intramolecular coupling of vicinal hydroxo ligands on low-valent Ru(III) centers

2021 ◽  
Vol 118 (52) ◽  
pp. e2113910118
Author(s):  
Yuki Tanahashi ◽  
Kosuke Takahashi ◽  
Yuta Tsubonouchi ◽  
Shunsuke Nozawa ◽  
Shin-ichi Adachi ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Water Oxidation ◽  
Artificial Photosynthesis ◽  
Bond Formation ◽  
Chemical Oxidation ◽  
Intersystem Crossing ◽  
The Core ◽  
Mechanistic Insight ◽  
Low Valent ◽  
Insight Into

The understanding of O–O bond formation is of great importance for revealing the mechanism of water oxidation in photosynthesis and for developing efficient catalysts for water oxidation in artificial photosynthesis. The chemical oxidation of the RuII2(OH)(OH2) core with the vicinal OH and OH2 ligands was spectroscopically and theoretically investigated to provide a mechanistic insight into the O–O bond formation in the core. We demonstrate O–O bond formation at the low-valent RuIII2(OH) core with the vicinal OH ligands to form the RuII2(μ-OOH) core with a μ-OOH bridge. The O–O bond formation is induced by deprotonation of one of the OH ligands of RuIII2(OH)2 via intramolecular coupling of the OH and deprotonated O− ligands, conjugated with two-electron transfer from two RuIII centers to their ligands. The intersystem crossing between singlet and triple states of RuII2(μ-OOH) is easily switched by exchange of H+ between the μ-OOH bridge and the auxiliary backbone ligand.

Mechanistic Insight into Concerted Proton–Electron Transfer of a Ru(IV)-Oxo Complex: A Possible Oxidative Asynchronicity

2020 ◽  
Vol 142 (40) ◽  
pp. 16982-16989
Author(s):  
Hiroaki Kotani ◽  
Hinatsu Shimomura ◽  
Kei Ikeda ◽  
Tomoya Ishizuka ◽  
Yoshihito Shiota ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Mechanistic Insight ◽  
Insight Into
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