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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1021/la401736f
|2 doi
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|a pubmed24n0763.xml
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|a (DE-627)NLM228929601
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|a (NLM)23829546
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Zhang, Hua-Xin
|e verfasserin
|4 aut
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|a Proton-coupled electron transfer and Lewis acid recognition at self-assembled monolayers of an oxo-bridged diruthenium(III) complex functionalized with two disulfide anchors
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 20.02.2014
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|a Date Revised 13.08.2013
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a A new μ-oxo-bis(μ-acetato)diruthenium(III) complex bearing two pyridyl disulfide ligands {[Ru2(μ-O)(μ-OAc)2(bpy)2(L(py-SS))2](PF6)2 (OAc = CH3CO2(-), bpy = 2,2'-bipyridine, L(py-SS) = (C5H4N)CH2NHC(O)(CH2)4CH(CH2)2SS) (1)} has been synthesized to prepare self-assembled monolayers (SAMs) on the Au(111) electrode surface. The SAMs have been characterized by contact-angle measurements, reflection-absorption surface infrared spectroscopy, cyclic voltammetry, and reductive desorption experiments. The SAMs exhibited proton-coupled electron transfer (PCET) reactions when the electrochemistry was studied in aqueous electrolyte solution (0.1 M NaClO4 with Britton-Robinson buffer to adjust the solution pH). The potential-pH plot (Pourbaix diagram) in the pH range from 1 to 12 has established that the dinuclear ruthenium moiety was involved in the interfacial PCET processes with four distinct redox states: Ru(III)Ru(III)(μ-O), Ru(II)Ru(III)(μ-OH), Ru(II)Ru(II)(μ-OH), and Ru(II)Ru(II)(μ-OH2). We also demonstrated that the interfacial redox processes were modulated by the addition of Lewis acids such as BF3 or Al(3+) to the electrolyte media, in which the externally added Lewis acids interacted with μ-O of the dinuclear moiety within the SAMs
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Disulfides
|2 NLM
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|a Lewis Acids
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|a Ligands
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|a Organometallic Compounds
|2 NLM
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|a Protons
|2 NLM
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|a Gold
|2 NLM
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|a 7440-57-5
|2 NLM
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|a Ruthenium
|2 NLM
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|a 7UI0TKC3U5
|2 NLM
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| 700 |
1 |
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|a Abe, Masaaki
|e verfasserin
|4 aut
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|a Zhang, Yi
|e verfasserin
|4 aut
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1 |
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|a Li, Guofang
|e verfasserin
|4 aut
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|a Ye, Shen
|e verfasserin
|4 aut
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|a Osawa, Masatoshi
|e verfasserin
|4 aut
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|a Sasaki, Yoichi
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 29(2013), 32 vom: 13. Aug., Seite 10110-9
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:29
|g year:2013
|g number:32
|g day:13
|g month:08
|g pages:10110-9
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|u http://dx.doi.org/10.1021/la401736f
|3 Volltext
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|d 29
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|e 32
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|h 10110-9
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