Coordination and Catalytic Properties of a Semihomologous Dppf Congener, 1-(Diphenylphosphino)-1′-[(diphenylphosphino)methyl]ferrocene

Coordination and Catalytic Properties of a Semihomologous Dppf Congener, 1-(Diphenylphosphino)-1′-[(diphenylphosphino)methyl]ferrocene: "

Organometallics

DOI: 10.1021/om2004805

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C–C Activation in the Solid State in an Organometallic σ-Complex

C–C Activation in the Solid State in an Organometallic σ-Complex: "

Journal of the American Chemical Society

DOI: 10.1021/ja2047599

The chemistry of hydridocarbonylferrates revisited: syntheses and structures of the new [H2Fe4(CO)12]2- and [HFe5(CO)14]3- anions, and the [Fe(DMF)4][Fe4(CO)12([small mu ]5-[small eta]2-CO)([small mu ]-H)]2 adduct containing an unprecedented isocarbonyl

The chemistry of hydridocarbonylferrates revisited: syntheses and structures of the new [H2Fe4(CO)12]2- and [HFe5(CO)14]3- anions, and the [Fe(DMF)4][Fe4(CO)12([small mu ]5-[small eta]2-CO)([small mu ]-H)]2 adduct containing an unprecedented isocarbonyl: "

Dalton Trans., 2011, Advance Article
DOI: 10.1039/C1DT10648A, Paper

C. Femoni, M. C. Iapalucci, G. Longoni, S. Zacchini
[H₂Fe₄(CO)₁₂]^2- and [HFe₅(CO)₁₄]^3-, the largest homometallic iron carbonyl, are herein described.
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An Oxidized Active Site Model for the FeFe Hydrogenase: Reduction with Hydrogen Gas

An Oxidized Active Site Model for the FeFe Hydrogenase: Reduction with Hydrogen Gas: "

Inorganic Chemistry

DOI: 10.1021/ic2009573

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Simple and Efficient Iridium(III)-Catalyzed Water Oxidations

Simple and Efficient Iridium(III)-Catalyzed Water Oxidations: "

The complex made simple: Simple and commercially available iridium precursors are tested for their ability to promote water oxidation. The activity values of these precursors towards cerium(IV)-driven oxygen generation from water are comparable with values reported for more complicated iridium-based systems. A turnover frequency of 1700 h⁻¹ is achieved with IrCl₃.

DOI: 10.1002/cssc.201100217

Reactions of the Bis(dialkylphosphino)methane Complexes Pd2X2(μ-R2PCH2PR2)2 (X = halogen, R = Me or Et) with H2S, S8, COS, and CS2; Detection of Reaction Intermediates

Reactions of the Bis(dialkylphosphino)methane Complexes Pd2X2(μ-R2PCH2PR2)2 (X = halogen, R = Me or Et) with H2S, S8, COS, and CS2; Detection of Reaction Intermediates: "

Inorganic Chemistry

DOI: 10.1021/ic200503d

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Electrocatalytic Oxidation of Formate by [Ni(PR2NR′2)2(CH3CN)]2+ Complexes

Electrocatalytic Oxidation of Formate by [Ni(PR2NR′2)2(CH3CN)]2+ Complexes: "

Journal of the American Chemical Society

DOI: 10.1021/ja204489e

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Highly Effective Asymmetric Hydrogenation of Cyclic N-Alkyl Imines with Chiral Cationic Ru-MsDPEN Catalysts

Highly Effective Asymmetric Hydrogenation of Cyclic N-Alkyl Imines with Chiral Cationic Ru-MsDPEN Catalysts: "

Organic Letters

DOI: 10.1021/ol201679f

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Reversible Capture of Small Molecules On Bimetallaborane Clusters: Synthesis, Structural Characterization, and Photophysical Aspects

Reversible Capture of Small Molecules On Bimetallaborane Clusters: Synthesis, Structural Characterization, and Photophysical Aspects: "

Inorganic Chemistry

DOI: 10.1021/ic200374k

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Computational Studies of Lewis Acidities of Tris(fluorophenyl)-Substituted Boranes: An Additive Relationship between Lewis Acidity and Fluorine Position

Computational Studies of Lewis Acidities of Tris(fluorophenyl)-Substituted Boranes: An Additive Relationship between Lewis Acidity and Fluorine Position: "

Inorganic Chemistry

DOI: 10.1021/ic201182p

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For Manor.

Trialkylborane-Assisted CO2 Reduction by Late Transition Metal Hydrides

Trialkylborane-Assisted CO2 Reduction by Late Transition Metal Hydrides: "

Organometallics

DOI: 10.1021/om200364w

Trialkylborane additives promote reduction of CO2 to formate by bis(diphosphine) Ni(II) and Rh(III) hydride complexes. The late transition metal hydrides, which can be formed from dihydrogen, transfer hydride to CO2 to give a formate borane adduct. The borane must be of appropriate Lewis acidity: weaker acids do not show signifi cant hydride transfer enhancement, while stronger acids abstract hydride without CO2 reduction. The mechanism likely involves a pre-equilibrium hydride transfer followed by formation of a stabilizing formate borane adduct

Lewis Acids and Lewis Acid-Functionalized Ligands in Rhodium-Catalyzed Methyl Acetate Carbonylation

Lewis Acids and Lewis Acid-Functionalized Ligands in Rhodium-Catalyzed Methyl Acetate Carbonylation:

Organometallics

DOI: 10.1021/om200341t

A re-investigation of [Fe(L-cysteinate)2(CO)2]2-: an example of non-heme CO coordination of possible relevance to CO binding to ion channel receptors

A re-investigation of [Fe(L-cysteinate)2(CO)2]2-: an example of non-heme CO coordination of possible relevance to CO binding to ion channel receptors: "

Dalton Trans., 2011, Advance Article
DOI: 10.1039/C1DT10338E, Paper

Lindsay Hewison, Tony R. Johnson, Brian E. Mann, Anthony J. H. M. Meijer, Philip Sawle, Roberto Motterlini
The two major isomers of the CO releasing molecule, [Fe(L-cysteinate)₂(CO)₂]^2¬, have been identified. Only one isomer is isolated for [Fe(SCH₂CH{CO₂H}NHCH₂)₂(CO)₂], where the two cysteines are linked.

Mechanistic implications of an asymmetric intermediate in catalytic C-C coupling by a dinuclear nickel complex

Mechanistic implications of an asymmetric intermediate in catalytic C-C coupling by a dinuclear nickel complex: "

Chem. Commun., 2011, Advance Article
DOI: 10.1039/C1CC12657A, Communication

Robert Beck, Samuel A. Johnson
A formally Ni(III)-Ni(I) complex undergoes C-C bond formation in the dinuclear catalytic conversion of biphenylene to tetraphenylene.

Synthesis and Catalytic Water Oxidation Activities of Ruthenium Complexes Containing Neutral Ligands

Synthesis and Catalytic Water Oxidation Activities of Ruthenium Complexes Containing Neutral Ligands: "

Abstract

Two dinuclear and one mononuclear ruthenium complexes containing neutral polypyridyl ligands have been synthesised as pre-water oxidation catalysts and characterised by ¹H and ¹³C NMR spectroscopy and ESI-MS. Their catalytic water oxidation properties in the presence of [Ce(NH₄)₂(NO₃)₆] (Ce^IV) as oxidant at pH 1.0 have been investigated. At low concentrations of Ce^IV (5 mM), high turnover numbers of up to 4500 have been achieved. An ¹⁸O-labelling experiment established that both O atoms in the evolved O₂ originate from water. Combined electrochemical study and electrospray ionisation mass spectrometric analysis suggest that ligand exchange between coordinated 4-picoline and free water produces Ru aquo species as the real water oxidation catalysts.

Homogeneous water oxidation catalysed by two dinuclear and one mononuclear ruthenium complexes containing neutral polypyridyl ligands (see figure) in the presence of Ce(NH₄)₂(NO₃)₆ as the oxidant at pH 1.0 has been achieved with high turnover numbers of up to 4500.

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Chemistry of polynuclear transition-metal complexes in ionic liquids

Chemistry of polynuclear transition-metal complexes in ionic liquids: "

Dalton Trans., 2011, Advance Article
DOI: 10.1039/C1DT10829H, Perspective

Ejaz Ahmed, Michael Ruck
Ionic liquids are excellent media for the convenient high-yield synthesis of transition-metal complexes and clusters under moderate conditions.

Metal–Ligand Cooperation by Aromatization–Dearomatization: A New Paradigm in Bond Activation and “Green” Catalysis

Metal–Ligand Cooperation by Aromatization–Dearomatization: A New Paradigm in Bond Activation and “Green” Catalysis: "

Accounts of Chemical Research

DOI: 10.1021/ar2000265

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Stoichiometric Reduction of CO2 to CO by Aluminum-Based Frustrated Lewis Pairs

Stoichiometric Reduction of CO2 to CO by Aluminum-Based Frustrated Lewis Pairs: "

Reducing frustration: The reaction of Mes₃P(CO₂)(AlI₃)₂ in the presence of a CO₂ atmosphere results in the formation of Mes₃P(CO₂)(O(AlI₂)₂)(AlI₃) and [Mes₃PI][AlI₄] (Mes=2,4,6-Me₃C₆H₂) with the evolution of CO.

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Binding, release, and functionalization of CO2 at a nucleophilic oxo anion complex of titanium

Binding, release, and functionalization of CO2 at a nucleophilic oxo anion complex of titanium: "

Chem. Sci., 2011, 2,1474-1479
DOI: 10.1039/C1SC00215E, Edge Article

Jared S. Silvia, Christopher C. Cummins
It is shown that the binding of CO₂ to a terminal anionic titanium oxide can be reversed chemically, and the isolable carbonate complex can be functionalized with select electrophiles.

Synthesis of Dinuclear Cobalt Complexes Containing Trimethylphosphine and Thiophenolato Ligands

Synthesis of Dinuclear Cobalt Complexes Containing Trimethylphosphine and Thiophenolato Ligands: "

Abstract

Benzene-1,2-dithiol reacted with Co(PMe₃)₄ or Co(PMe₃)₄Me to afford a dinuclear complex Co₂[C₆H₄(SS)]₂(PMe₃)₄ (1). The cobalt complex Co₂[C₆H₄(NH)S]₂(PMe₃)₄ (2) was obtained from the reaction of 2-aminothiolphenol with Co(PMe₃)₄Me. From Co(PMe₃)₃(CO)Cl and the lithium salt of 2-aminothiolphenol or benzene-1,2-dithiol dinuclear complexes Co₂[C₆H₄(NH)S](CO)₂(PMe₃)₄ (3) or Co₂[C₆H₄(SS)](CO)₂(PMe₃)₄ (4) were obtained. The molecular structures of 1 and 4 show longer metal–metal distances [Co–Co: 2.6333(6) (1) and 2.5547(12) Å (4)] than those of 2 and 3 [Co–Co: 2.4720(5) (2) and 2.457(4) Å (3)]. The possible reaction mechanisms of these reactions are proposed.

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Investigations on Macrocyclic Complexes Containing [Fe2S2] Clusters: Synthesis and Characterization

Investigations on Macrocyclic Complexes Containing [Fe2S2] Clusters: Synthesis and Characterization: "

Abstract

Two macrocyclic complexes containing [Fe₂S₂] clusters [(μ-SCH₂)₂Fe₂(CO)₅]₂(NCH₂CH₂N)(Ph₂PCH₂CH₂CH₂PPh₂) (1) and [(μ-SCH₂)₂Fe₂(CO)₅]₂(NCH₂CH₂N)(Ph₂PCH₂CH₂CH₂CH₂PPh₂) (2) were prepared from reactions of [(μ-SCH₂)₂Fe₂(CO)₆]₂(NCH₂CH₂N) with Ph₂PCH₂CH₂CH₂PPh₂ (dppp) or Ph₂PCH₂CH₂CH₂CH₂PPh₂ (dppb) in the presence of the CO-removing agent Me₃NO·2H₂O. Complexes 1 and 2 were characterized by elemental analysis and IR and NMR spectroscopy. In addition, the X-ray structure of 2 showed the molecule to contain a 16 atom macrocycle, which is joined together by an ethylene group and a bidentate ligand dppb.

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A Co4O4 “Cubane” Water Oxidation Catalyst Inspired by Photosynthesis

A Co4O4 “Cubane” Water Oxidation Catalyst Inspired by Photosynthesis: "

Journal of the American Chemical Society

DOI: 10.1021/ja203877y

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Deactivation of the Cobalt Catalyst for the Cyclotrimerization of Acetylenes in Ionic Liquids: Solvent Effects on the Mechanism and Thermal and Pressure Activation Parameters

Deactivation of the Cobalt Catalyst for the Cyclotrimerization of Acetylenes in Ionic Liquids: Solvent Effects on the Mechanism and Thermal and Pressure Activation Parameters: "

Organometallics

DOI: 10.1021/om200376p

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A new building block for electroactive organic materials? Synthesis, cyclic voltammetry, single crystal X-ray structure, and DFT treatment of a unique boron-based viologen

A new building block for electroactive organic materials? Synthesis, cyclic voltammetry, single crystal X-ray structure, and DFT treatment of a unique boron-based viologen: "

Chem. Commun., 2011, Advance Article
DOI: 10.1039/C1CC12265G, Communication

Scott C. Dorman, Richard A. O'Brien, Adam T. Lewis, E. Alan Salter, Andrzej Wierzbicki, Paul W. Hixon, Richard E. Sykora, Arsalan Mirjafari, James H. Davis
A boronium-based paraquat analog undergoes reductions at more negative potentials than paraquat itself, making it a promising building block for electroactive materials.
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A new building block for electroactive organic materials? Synthesis, cyclic voltammetry, single crystal X-ray structure, and DFT treatment of a unique boron-based viologen - Chemical Communications (RSC Publishing)

Phosphorescent Sensor for Robust Quantification of Copper(II) Ion

Phosphorescent Sensor for Robust Quantification of Copper(II) Ion: "

Journal of the American Chemical Society

DOI: 10.1021/ja204997c

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Tetrairon Cluster Cp3Fe4(CO)4(C5H4PPh2) as a P–O Chelating Agent to Bind Palladium(II) and Copper(I) Ions through Phosphine and μ3-Carbonyl Groups

Tetrairon Cluster Cp3Fe4(CO)4(C5H4PPh2) as a P–O Chelating Agent to Bind Palladium(II) and Copper(I) Ions through Phosphine and μ3-Carbonyl Groups: "

Organometallics

DOI: 10.1021/om200185z

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