Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Shunichi Fukuzumi | * |
dc.date.accessioned | 2016-08-28T12:08:30Z | - |
dc.date.available | 2016-08-28T12:08:30Z | - |
dc.date.issued | 2012 | * |
dc.identifier.issn | 0002-7863 | * |
dc.identifier.other | OAK-8870 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/222723 | - |
dc.description.abstract | A [C,N] cyclometalated Ir complex, [Ir III(Cp*)(4-(1H- pyrazol-1-yl-κN 2)benzoic acid-κC 3)(H 2O)] 2SO 4 [1] 2·SO 4, was reduced by aliphatic alcohols to produce the corresponding hydride complex [Ir III(Cp*)(4-(1H-pyrazol-1-yl-κN 2)-benzoate- κC 3)H] -4 at room temperature in a basic aqueous solution (pH 13.6). Formation of the hydride complex 4 was confirmed by 1H and 13C NMR, ESI MS, and UV-vis spectra. The [C,N] cyclometalated Ir-hydride complex 4 reacts with proton to generate a stoichiometric amount of hydrogen when the pH was decreased to pH 0.8 by the addition of diluted sulfuric acid. Photoirradiation (λ > 330 nm) of an aqueous solution of the [C,N] cyclometalated Ir-hydride complex 4 resulted in the quantitative conversion to a unique [C,C] cyclometalated Ir-hydride complex 5 with no byproduct. The complex 5 catalyzed hydrogen evolution from ethanol in a basic aqueous solution (pH 11.9) under ambient conditions. The 1,4-selective catalytic hydrogenation of β-nicotinamide adenine dinucleotide (NAD +) by ethanol was also made possible by the complex 1 to produce 1,4-dihydro-β-nicotinamide adenine dinucleotide (1,4-NADH) at room temperature. The overall catalytic mechanism of hydrogenation of NAD +, accompanied by the oxidation of ethanol, was revealed on the basis of the kinetic analysis and detection of the reaction intermediates. © 2012 American Chemical Society. | * |
dc.language | English | * |
dc.title | Hydrogen evolution from aliphatic alcohols and 1,4-selective hydrogenation of NAD + catalyzed by a [C,N] and a [C,C] cyclometalated organoiridium complex at room temperature in water | * |
dc.type | Article | * |
dc.relation.issue | 22 | * |
dc.relation.volume | 134 | * |
dc.relation.index | SCI | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 9417 | * |
dc.relation.lastpage | 9427 | * |
dc.relation.journaltitle | Journal of the American Chemical Society | * |
dc.identifier.doi | 10.1021/ja302788c | * |
dc.identifier.wosid | WOS:000304837800067 | * |
dc.identifier.scopusid | 2-s2.0-84861842455 | * |
dc.author.google | Maenaka Y. | * |
dc.author.google | Suenobu T. | * |
dc.author.google | Fukuzumi S. | * |
dc.contributor.scopusid | Shunichi Fukuzumi(35430038100;58409757400) | * |
dc.date.modifydate | 20240401081001 | * |