2018
DOI: 10.1021/acs.inorgchem.8b02164
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Versatile Rh- and Ir-Based Catalysts for CO2Hydrogenation, Formic Acid Dehydrogenation, and Transfer Hydrogenation of Quinolines

Abstract: Considering the interest in processes related to hydrogen storage such as CO2 hydrogenation and formic acid (FA) decomposition, we have synthesized a set of Ir, Rh, or Ru complexes to be tested as versatile precatalysts in these reactions. In relation with the formation of H2 from FA, the possible applicability of these complexes in the transfer hydrogenation (TH) of challenging substrates as quinoline derivatives using FA/formate as hydrogen donor has also been addressed. Bearing in mind the importance of sec… Show more

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Cited by 37 publications
(21 citation statements)
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“…The most commonly used catalysts for the conversion of CO 2 into formic acid are precious metals Rh, [159,160] Ru, [161] Ir, [160,162] Pd [163] as they contain homogeneous ligands, such as phosphine ligands, [164] pincer ligands, [164] N-heterocyclic carbene ligands, [164] proton-responsive ligands. [165,166] However, the synthesis of these homogenous catalysts is complicated along with high energy consumption.…”
Section: Catalytic Co 2 Hydrogenation To Formic Acidmentioning
confidence: 99%
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“…The most commonly used catalysts for the conversion of CO 2 into formic acid are precious metals Rh, [159,160] Ru, [161] Ir, [160,162] Pd [163] as they contain homogeneous ligands, such as phosphine ligands, [164] pincer ligands, [164] N-heterocyclic carbene ligands, [164] proton-responsive ligands. [165,166] However, the synthesis of these homogenous catalysts is complicated along with high energy consumption.…”
Section: Catalytic Co 2 Hydrogenation To Formic Acidmentioning
confidence: 99%
“…The first databases with experimental adsorption energies reported for the purposes of benchmarking DFT have been proposed by Hammer et al [188] which included 5 chemisorption energies for CO adsorption and Wellendorff et al [189] that [156] À 1.11 [157] -0.078 [149] À 1.109 [158] -100 À 1.47 [149] --À 1.45 [159] --À 1.08 [156] --À 0.92 [151,160] --110…”
Section: Performance Of Dfas For Gas Phase Reaction Energeticsmentioning
confidence: 99%
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“…13,14 Unfortunately, even with high conversion and selectivity, the difficult-toisolate catalysts, ligands, and additives in mixed systems will limit their industrial applications to a large scale. 15,16 In recent years, heterogeneous catalysis, especially the catalysts loaded with precious metals, has attracted more and more attention, such as heterogeneous ones based on Au, Pd, Pt, Ru, Ir, and Rh. In the quinoline hydrogenation, the N-heterocyclic ring is easily coordinated with the metal nanoparticles, which makes the catalyst difficult to be recycled.…”
Section: Introductionmentioning
confidence: 99%
“…We tested other halide compounds that could behave like 1, but our efforts so far have been unsuccessful. For example, neutral [58] or cationic [59] [Cp*IrCl (N N')] n + (n = 0, 1) species are able of generating hydride species in the aqueous reaction medium, but these species do not exchange deuterium for D 2 O or do so at an insufficient rate to behave as 1. In principle, according to the proposal of Himeda and our own experience, [53][54][55] the generation of the metal-D group must be fast enough to compete kinetically with the TH process to allow a high level of deuterium incorporation.…”
Section: Introductionmentioning
confidence: 99%