Preparation and nuclear magnetic resonance spectra of hydridophosphine complexes of ruthenium and rhodium

Dewhirst, Kenneth C.; Keim, W.; Reilly, C. A.

doi:10.1021/ic50061a033

Cited by 103 publications

(24 citation statements)

References 2 publications

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“…31 P NMR (202 MHz, THF- d 8 , δ/ppm, −90°C): 33.4 (dm, J P−Rh = 112), 30.2 (dd, J P−Rh = 162, J P−P = 32 Hz). The spectrosopic data was analogous to the values reported previously (Dewhirst et al, 1968; Strauss and Shriver, 1978).…”

Section: Methodssupporting

confidence: 85%

Improved Conditions for the Visible-Light Driven Hydrocarboxylation by Rh(I) and Photoredox Dual Catalysts Based on the Mechanistic Analyses

et al. 2019

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The improved catalytic conditions and detailed reaction mechanism of the visible-light driven hydrocarboxylation of alkenes with CO 2 by the Rh(I) and photoredox dual catalysts were investigated. The use of the benzimidazoline derivative, BI(OH)H, as a sacrificial electron donor was found to increase the yield of the hydrocarboxylated product by accelerating the reduction process. In addition, the incorporation of the cyclometalated Ir(III) complex as a second photosensitizer with [Ru(bpy) 3 ] 2+ photosensitizer also resulted in the promotion of the reduction process, supporting that the catalytic cycle includes two photochemical elementary processes: photoinduced electron and energy transfers.

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Section: Methodssupporting

confidence: 85%

Improved Conditions for the Visible-Light Driven Hydrocarboxylation by Rh(I) and Photoredox Dual Catalysts Based on the Mechanistic Analyses

et al. 2019

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“…This evidence points to the first mechanism, [5], as the more likely, and kinetic data and observations are all satisfactorily explained on this basis. The inverse dependence of the rate on the added DBP concentration is consistent with a dissociation of RhH(DBP), to give RhH(DBP),, which then reacts with the olefin to produce the intermediate alkyl complex, followed by a slow reaction with hydrogen according to the following scheme: (Fig.…”

Section: K1supporting

confidence: 65%

An Efficient and Selective Monohydrido Rhodium(I) Homogeneous Hydrogenation Catalyst Containing a Cyclic Phosphine

Budd¹,

Holah²,

Hughes³

et al. 1974

Can. J. Chem.

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The preparation of the complex RhH(DBP)4 (where DBP is a drbenzophosphole derivative) is described. It is a very effective and selective catalyst for the homogeneous hydrogenation of terminal olefins. Kinetic and mechanistic data for the hydrogenation of 1-hexene are presented.On dCcrit la prtparation du complexe RhH(DBP)4 dans lequel DBP est un dtrivt dibenzophosphole. Ce complexe est un catalyseur trbs efficace et tres selectif pour hydrogenation homogene des olefines terminales. On presente des donnCes c~netiques et mechanistiques pour I'hydrogCnation de I'hexbne-1.[Traduit par le journal]Can. J. Chem., 52,775 (1974)

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“…This points to the first mechanism (3) as the most probable pathway. 35 Based on the kinetics data and the dependency of the rates of hydrogenation reactions on the coordinating ability of the solvent used, we can now propose two mechanisms as shown in Scheme 1. The first pathways is a classical route usually observed for bidentate systems where dihydride species is not favored, thus formation of the monohydride species 2a.…”

Section: Proposed Mechanism Of the Hydrogenation Of Styrenementioning

confidence: 99%

Kinetics and DFT Studies of the Hydrogenation Reactions of Alkenes and Alkynes Catalyzed by (Benzoimidazol-2-ylmethyl)amine palladium(II) Complexes

Tshabalala¹,

Ojwach²

2018

Preprint

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A series of (benzoimidazol-2-ylmethyl)amine palladium(II) complexes have been employed as catalysts in the homogenous hydrogenation of alkenes and alkynes under mild conditions. A correlation between the catalytic activity and the nature of the ligand was established. Kinetic studies of the hydrogenation reactions of styrene established pseudo-first-order dependence on styrene substrate. On the other hand, partial orders with respect to H2 and catalyst concentrations were obtained consistent with the formation of palladium(II) monohydride species as the active species. The nature of the solvent used influenced the hydrogenation reactions, where coordinating solvents resulted in lower catalytic activities. Density functional theory investigations provided valuable insights into the reactivity trends and influence of complex structure on the hydrogenation reactions.

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Preparation and nuclear magnetic resonance spectra of hydridophosphine complexes of ruthenium and rhodium

Cited by 103 publications

References 2 publications

Improved Conditions for the Visible-Light Driven Hydrocarboxylation by Rh(I) and Photoredox Dual Catalysts Based on the Mechanistic Analyses

Improved Conditions for the Visible-Light Driven Hydrocarboxylation by Rh(I) and Photoredox Dual Catalysts Based on the Mechanistic Analyses

An Efficient and Selective Monohydrido Rhodium(I) Homogeneous Hydrogenation Catalyst Containing a Cyclic Phosphine

Kinetics and DFT Studies of the Hydrogenation Reactions of Alkenes and Alkynes Catalyzed by (Benzoimidazol-2-ylmethyl)amine palladium(II) Complexes

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