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Insights into Ru-Ba...
Insights into Ru-Based Molecular Water Oxidation Catalysts : Electronic and Noncovalent-Interaction Effects on Their Catalytic Activities
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- Duan, Lele (author)
- KTH,Kemi
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- Wang, Lei (author)
- KTH,Kemi
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- Inge, A. Ken (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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- Fischer, Andreas (author)
- KTH,Tillämpad fysikalisk kemi
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- Zou, Xiaodong (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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- Sun, Licheng (author)
- KTH,Organisk kemi
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(creator_code:org_t)
- 2013-06-28
- 2013
- English.
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In: Inorganic Chemistry. - : American Chemical Society (ACS). - 0020-1669 .- 1520-510X. ; 52:14, s. 7844-7852
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- A series of Ru-bda water oxidation catalysts [Ru(bda)L-2] (H(2)bda = 2,2'-bipyridine-6,6'-dicarboxylic acid; L = [HNEt3][3-SO3-pyridine], 1; 4-(EtOOC)-pyridine, 2; 4-bromopyridine, 3; pyridine, 4; 4-methoxypyridine, 5; 4-(Me2N)-pyridine, 6; 4-[Ph(CH2)(3)]-pyridine, 7) were synthesized with election-donating/-withdrawing groups and hydro-philic/hydrophobic groups in the axial ligands. These complexes were characterized by H-1 NMR spectroscopy, high-resolution mass spectrometry, elemental analysis, and electrochemistry. In addition, complexes 1 and 6 were further identified by single crystal X-ray crystallography, revealing a highly distorted octahedral configuration of the Ru coordination sphere. All of these complexes are highly active toward Ce-IV-driven (Ce-IV = Ce(NH4)(2)(NO3)(6)) water oxidation with oxygen evolution rates up to 119 mols of O-2 per mole of catalyst per second. Their structure-activity relationship was investigated. Electron-withdrawing and noncovalent interactions (attraction) exhibit positive effect on the catalytic activity of Ru-bda catalysts.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- Mononuclear Ruthenium Complexes; O-O Bond; Iridium Complexes; Redox Properties; Functional-Model; Photosystem-Ii; O-2 Evolution; Efficient; Ligands; Site
Publication and Content Type
- ref (subject category)
- art (subject category)
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