Connecting [NiFe]- and[FeFe]-Hydrogenases: Mixed-ValenceNickel–Iron Dithiolates with Rotated Structures

Connecting [NiFe]- and
[FeFe]-Hydrogenases: Mixed-Valence
Nickel–Iron Dithiolates with Rotated Structures:

Inorganic Chemistry

DOI: 10.1021/ic300910r

Synthetic and Structural Investigations on Some New 1,2,4,5-(CH2)4C6H2 Moiety-Containing Butterfly Fe/S Cluster Complexes from Reactions of Tetrathiol 1,2,4,5-(HSCH2)4C6H2 with Fe3(CO)12 or with Fe3(CO)12 in the Presence of Et3N

Synthetic and Structural
Investigations on Some New
1,2,4,5-(CH2)4C6H2 Moiety-Containing
Butterfly Fe/S Cluster Complexes from Reactions of Tetrathiol 1,2,4,5-(HSCH2)4C6H2 with Fe3(CO)12 or with Fe3(CO)12 in the
Presence of Et3N:

Organometallics

DOI: 10.1021/om300395z

Structural and Spectroscopic Features of Mixed Valent FeIIFeI Complexes and Factors Related to the Rotated Configuration of Diiron Hydrogenase

Structural and Spectroscopic
Features of Mixed Valent
FeIIFeI Complexes and Factors Related to the
Rotated Configuration of Diiron Hydrogenase:

Journal of the American Chemical Society

DOI: 10.1021/ja304866r

The Mechanism of Efficient Asymmetric Transfer Hydrogenation of Acetophenone Using an Iron(II) Complex Containing an (S,S)-Ph2PCH2CHNCHPhCHPhNCHCH2PPh2 Ligand: Partial Ligand Reduction Is the Key

The Mechanism of Efficient
Asymmetric Transfer Hydrogenation
of Acetophenone Using an Iron(II) Complex Containing an (S,S)-Ph2PCH2CHNCHPhCHPhNCHCH2PPh2 Ligand: Partial Ligand Reduction Is the Key:

Journal of the American Chemical Society

DOI: 10.1021/ja304814s

Structural and SpectroscopicFeatures of Mixed ValentFeIIFeI Complexes and Factors Related to theRotated Configuration of Diiron Hydrogenase

Structural and Spectroscopic
Features of Mixed Valent
FeIIFeI Complexes and Factors Related to the
Rotated Configuration of Diiron Hydrogenase:

Journal of the American Chemical Society

DOI: 10.1021/ja304866r

Pasteur’s Tweezers Revisited: On the Mechanism of Attrition-Enhanced Deracemization and Resolution of Chiral Conglomerate Solids

Pasteur’s Tweezers
Revisited: On the Mechanism
of Attrition-Enhanced Deracemization and Resolution of Chiral Conglomerate
Solids:

Journal of the American Chemical Society

DOI: 10.1021/ja303566g

Modeling the Signatures of Hydrides in Metalloenzymes: ENDOR Analysis of a Di-iron Fe(μ-NH)(μ-H)Fe Core

Modeling the Signatures
of Hydrides in Metalloenzymes: ENDOR Analysis of a Di-iron Fe(μ-NH)(μ-H)Fe
Core:

Journal of the American Chemical Society

DOI: 10.1021/ja303739g

The Facile Reduction of Carbon Dioxide to Carbon Monoxide with an Amido-Digermyne

The Facile Reduction of Carbon Dioxide to Carbon Monoxide with an Amido-Digermyne:

Taking the fizz out: A digermyne compound with a GeGe single bond has been shown to quantitatively reduce CO₂ to CO at temperatures as low as −40 °C. The mechanism of this unprecedented reaction has been probed by spectroscopic and computational techniques and involves a metastable intermediate (see picture, Ar*=C₆H₂{C(H)Ph₂}₂Me-2,6,4).

Modeling the Signaturesof Hydrides in Metalloenzymes: ENDOR Analysis of a Di-iron Fe(μ-NH)(μ-H)FeCore

Modeling the Signatures
of Hydrides in Metalloenzymes: ENDOR Analysis of a Di-iron Fe(μ-NH)(μ-H)Fe
Core:

Journal of the American Chemical Society

DOI: 10.1021/ja303739g

Hydrogenases as electrocatalysts [Chemistry]

Hydrogenases as electrocatalysts [Chemistry]: The extraordinary ability of Fe- and Ni-containing enzymes to catalyze rapid and efficient H+/H2 interconversion—a property otherwise exclusive to platinum metals—has been investigated in a series of experiments combining variable-temperature protein film voltammetry with mathematical modeling. The results highlight important differences between the catalytic performance of [FeFe]-hydrogenases and [NiFe]-hydrogenases and justify a simple model for reversible catalytic electron flow in enzymes and electrocatalysts that should be widely applicable in fields as diverse as electrochemistry, catalysis, and bioenergetics. The active site of [FeFe]-hydrogenases, an intricate Fe-carbonyl complex known as the “H cluster,” emerges as a supreme catalyst.

An Efficient Iridium Catalyst for Reduction of Carbon Dioxide to Methane with Trialkylsilanes

An Efficient Iridium Catalyst
for Reduction of Carbon
Dioxide to Methane with Trialkylsilanes:

Journal of the American Chemical Society

DOI: 10.1021/ja305318c

An Efficient Iridium Catalystfor Reduction of CarbonDioxide to Methane with Trialkylsilanes

An Efficient Iridium Catalyst
for Reduction of Carbon
Dioxide to Methane with Trialkylsilanes:

Journal of the American Chemical Society

DOI: 10.1021/ja305318c

Reactivity of Bis(3,5-dimethylpyrazol-1-yl)methyllithium with S or CS2, Followed by Reaction with Fe3(CO)12 and Ar3SnCl or RX: Unexpected Formation of (3,5-Dimethylpyrazol-1-yl)dithioformate Derivatives

Reactivity of Bis(3,5-dimethylpyrazol-1-yl)methyllithium
with S or CS2, Followed by Reaction with Fe3(CO)12 and Ar3SnCl or RX: Unexpected Formation
of (3,5-Dimethylpyrazol-1-yl)dithioformate Derivatives:

Organometallics

DOI: 10.1021/om300448a

An iridium-pyridylpyrrolide complex exhibiting reversible binding of H2

An iridium-pyridylpyrrolide complex exhibiting reversible binding of H2:

Dalton Trans., 2012, Advance Article
DOI: 10.1039/C2DT30981E, Communication

Keith Searles, Maren Pink, Kenneth G. Caulton, Daniel J. Mindiola
The synthesis, characterization, and reactivity of a series of iridium(I) and iridium(III) complexes supported by a 3,5-bis(trifluoromethyl)-2-(2[prime or minute]-pyridyl)pyrrole (L^-) ligand are reported.
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Biomimetic Models for the Active Site of [Fe]Hydrogenase Featuring an Acylmethyl(hydroxymethyl)pyridine Ligand

Biomimetic Models for
the Active Site of [Fe]Hydrogenase Featuring an Acylmethyl(hydroxymethyl)pyridine
Ligand:

Inorganic Chemistry

DOI: 10.1021/ic301146u

Main Group Redox Catalysis: Reversible PIII/PV Redox Cycling at a Phosphorus Platform

Main Group Redox Catalysis:
Reversible PIII/PV Redox Cycling at a Phosphorus
Platform:

Journal of the American Chemical Society

DOI: 10.1021/ja302963p

Palladium-mediated Cleavage of S–C Bonds: Preparation and Characterization of Palladium(II) Complexes of 2, 6-Diformyl-4-tert-butylthiophenol Dioxime

Palladium-mediated Cleavage of S–C Bonds: Preparation and Characterization of Palladium(II) Complexes of 2, 6-Diformyl-4-tert-butylthiophenol Dioxime:

Abstract

The synthesis of air-sensitive 2, 6-diformyl-4-tert-butylthiophenol dioxime H₃L3 was achieved by a Pd-mediated S–C cleavage of the corresponding S-tert-butyl protected thioether. The novel ligand forms a dinuclear, neutral Pd^II₂ complex, which is stabilized by two N···HO hydrogen bonds to give a pseudo-macrocyclic structure. The crystal structure of a Pd^II complex of an oxidized isothiazole derivative of H₃L3 is also reported.

Tungsten(II) Alkylimido Complexes from Insertion of Nitriles into Tungsten Hydride: Alkylideneamido Intermediate Stage and Nitrene Group Transfer to Isocyanide

Tungsten(II) Alkylimido
Complexes from Insertion of Nitriles into Tungsten Hydride: Alkylideneamido
Intermediate Stage and Nitrene Group Transfer to Isocyanide:

Organometallics

DOI: 10.1021/om3004338

this ligand could be installed on Fe2(pdt)

Synthesis, Structural Characterization, and Properties of Some Functionalized Phosphine-Containing Diiron Complexes As Models for the Active Site of [FeFe]-Hydrogenases

Synthesis, Structural
Characterization, and Properties of Some Functionalized Phosphine-Containing
Diiron Complexes As Models for the Active Site of [FeFe]-Hydrogenases:

Organometallics

DOI: 10.1021/om300418z

Synthesis of a Stable 1,2-Bis(ferrocenyl)diphosphene

Synthesis of a Stable 1,2-Bis(ferrocenyl)diphosphene:

Chem. Commun., 2012, Accepted Manuscript
DOI: 10.1039/C2CC33277A, Communication

Takahiro Sasamori, Michiyasu Sakagami, Masatoshi Niwa, Heisuke Sakai, Yukio Furukawa , Norihiro Tokitoh
A stable 1,2-bis(ferrocenyl)diphosphene, where two ferrocenyl units are bridged by a P=P [small pi]-bond, has been synthesized. It represents an unprecedented class of d-[small pi] electron systems containing a heavier pnictogen [small pi]-spacer...

methods for bulking up Fc's