Stabilization of the Hydroperoxido Ligand: A 1κ<i>O</i>,2κ<i>O</i>′ Dimetallic Coordination Mode

Tejel, Cristina; Ciriano, Miguel A.; Jiménez, Sonia; Passarelli, Vincenzo; Ja, López López

doi:10.1002/anie.200702559

Cited by 36 publications

(30 citation statements)

References 39 publications

(29 reference statements)

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“…Each isotope shift value (45 and 32 cm –1 ) is expected following a Hooke’s law calculation for O–O and Rh–O stretching modes, respectively . The ν(O–O) band of 4 is consistent with those observed in peroxide species. − An excitation wavelength of 532 nm can be used for the resonance of the peroxide complex 4 , which indicates that the wavelength should be relevant to the charge transfer derived from 4 .…”

Section: Resultsmentioning

confidence: 57%

“…The O–O bond distance is 1.457(4) Å, which corresponds to those found for the two-electron reduction of O 2 to peroxide, O 2 2– , − and it is also in good agreement with that of H 2 O 2 (1.461(3) Å) . The O–O bond distance of complex 4 is comparable to those of the μ-η 1 :η 2 -O 2 and μ-1,2-OOH Rh complexes and shorter than that of the μ-η 2 :η 2 -O 2 Rh complex …”

Section: Resultsmentioning

confidence: 99%

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Direct Synthesis of Hydrogen Peroxide in Water by Means of a Rh-Based Catalyst

et al. 2020

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This paper reports the synthesis, structure, and mechanistic action of a Rh-based catalyst, the monohydroxide diaqua RhIII complex 1, for the direct synthesis of H2O2 from H2 and O2. Of particular interest is the elucidation of the crystal structures of 1, the low-valent RhI complex 2, the dinuclear RhII complex 3, and the peroxide RhIII complex 4 that appear in the catalytic cycle. In order to clarify the mechanistic action of the Rh-based catalyst, the catalytic reaction was investigated with 1 in water, but the possible intermediates 2–4 were isolated in organic solvents. First, we describe the synthesis, characterization, and behavior of the functioning, Rh-based catalyst. We then describe this catalytic direct synthesis of H2O2 from H2 and O2 with 1 (turnover number (TON) = 3.8 for 3 h).

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Section: Resultsmentioning

confidence: 57%

Section: Resultsmentioning

confidence: 99%

Direct Synthesis of Hydrogen Peroxide in Water by Means of a Rh-Based Catalyst

et al. 2020

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“…It was hoped that by implementing 2 as the ligand, the high electron-donating ability of the di-isopropylphosphino groups would facilitate the loss of anthracene with concomitant nitride transfer to generate the desired Ni N subunit, but this did not occur. More recent work has focused on second row transition metals such as rhodium [31,32] and ruthenium [32,33]. Rhodium derivatives have displayed a wide range of chemistry, with many reported complexes (64-76, Scheme 12) [32,34,35].…”

Section: Boron (R'b(ch 2 Pr 2 ) 3 -)mentioning

confidence: 99%

Beyond Triphos – New hinges for a classical chelating ligand

Phanopoulos

Miller

Long

2015

Coordination Chemistry Reviews

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Branched triphosphine ligands have been less widely studied than mono-and bidentate analogues. The most studied ligand of this type is Triphos Ph (CH 3 C(CH 2 PPh 2 ) 3 ). Substitution of the apical C-CH 3 moiety with boron, silicon, tin, nitrogen or phosphorus fragments has generated a new family of ligands, in some cases displaying varying coordination chemistry and reactivity to the parent carbonbased system. This review includes the synthetic strategies implemented to afford these ligands, as well as derivatives by way of varying the phosphine substituents. Although not exhaustive, relevant types of reported complexes featuring these ligands are discussed, as well as their reactivity and catalytic applications. Through critical analysis, common themes and chemical trends across this family of apical heteroatomic, branched triphosphines can be identified, leading to improvements in current chemical applications, as well as new areas that remain underdeveloped.

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“…The isolation and characterisation of a thermally stable Rh 2 complex containing a hydroperoxido and peroxido bridging ligand has been described. 41…”

Section: Rhodium Chemistrymentioning

confidence: 99%

Cobalt, rhodium and iridium

Smith

2009

Annu. Rep. Prog. Chem., Sect. A: Inorg. Chem.

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This chapter provides a selective review of the literature for 2008 on the chemistry of the Group 9 elements. HighlightsThe year 2008 has witnessed some remarkable work in the field of Co, Rh and Ir chemistry. Some notable highlights include the synthesis and structural characterisation of a unique heterobimetallic Co/Pt complex, 14 a highly active Co catalyst for O 2 generation from water, 26 new Z 2 -amine-borane s-complexes of Rh(I), 30 cationic Ir(III) complexes as phosphorescent dyes for living cell imaging 74 and H/D exchange reactions catalysed by Ir complexes. 88,89

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Stabilization of the Hydroperoxido Ligand: A 1κO,2κO′ Dimetallic Coordination Mode

Cited by 36 publications

References 39 publications

Direct Synthesis of Hydrogen Peroxide in Water by Means of a Rh-Based Catalyst

Direct Synthesis of Hydrogen Peroxide in Water by Means of a Rh-Based Catalyst

Beyond Triphos – New hinges for a classical chelating ligand

Cobalt, rhodium and iridium

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