Catalytic Reduction of CO2 to CO Using Zinc(II) and In Situ Generated Carbodiphosphoranes

Catalytic Reduction of CO2 to CO Using Zinc(II) and In Situ Generated Carbodiphosphoranes:

Playing it 'CO'ol: CO₂ is catalytically reduced to CO with concurrent oxidation of phosphine to phosphineoxide using an in situ generated catalyst derived from a carbodiphosphorane and zinc(II).

Reduction of Carbon DioxidePromoted by a Dinuclear Tantalum Tetrahydride Complex

Reduction of Carbon Dioxide
Promoted by a Dinuclear Tantalum Tetrahydride Complex:

Inorganic Chemistry

DOI: 10.1021/ic302438f

Hydrogen Bonding and ProtonTransfer to Ruthenium Hydride Complex CpRuH(dppe): Metal and HydrideDichotomy

Hydrogen Bonding and Proton
Transfer to Ruthenium Hydride Complex CpRuH(dppe): Metal and Hydride
Dichotomy:

Inorganic Chemistry

DOI: 10.1021/ic301585k

Synthesis and Reactivity of Nickel-Hydride Amino-bis-Phosphinimine Complexes

Synthesis and Reactivity of Nickel-Hydride Amino-bis-Phosphinimine Complexes:

, 2013, Accepted Manuscript
DOI: 10.1039/C3DT33021D, Communication

Renan Cariou, Todd Graham, Douglas W Stephan
Cationic hydride complexes [R-N(1,2-CH2CH2N=PPh3)2NiH] [PF6] (R = H, Me) are prepared and shown to react with ethylene to produce NiEt complexes and with LiHBEt3 in bromobenzene to produce NiPh complexes....
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Cover Picture: ZAAC - Journal of Inorganic and General Chemistry 1/2013

Cover Picture: ZAAC - Journal of Inorganic and General Chemistry 1/2013:

The cover picture shows the burning of an environmentally friendly M159 pyrotechnic illuminant composition for military signaling. This illuminant may also be of interest to the civilian fireworks industry. The illuminant is free of heavy metal barium and toxic Laminac binder system, and has a low sensitivity to various ignition stimuli. The new illuminant burns 1.12 times longer, 2.93 times brighter, and with 3.25 times the luminous efficiency compared to the bariumcontaining M159 control. The top-left picture depicts an M159 illuminant tested statically at mid-burn. The top-right picture shows a midburn profile during ballistic mortar testing of the new 5-star cluster M159 illuminant. The bottom picture depicts yellow light-emitting fireworks during a Macy?s 4th of July display in New York City. More details can be found in the article by Jesse Sabatini et al. on page. 25 ff.

Chromium(IV) Siloxide

Chromium(IV) Siloxide:

Inorganic Chemistry

DOI: 10.1021/ic3023612

Use of a Metallopeptide-Based Mimic Provides Evidence for a Proton-Coupled Electron-Transfer Mechanism for Superoxide Reduction By Nickel-Containing Superoxide Dismutase

Use of a Metallopeptide-Based Mimic Provides Evidence for a Proton-Coupled Electron-Transfer Mechanism for Superoxide Reduction By Nickel-Containing Superoxide Dismutase:

Sneaky little SOD! A metallopeptide-based mimic of nickel-containing superoxide dismutase was used to probe the mechanism of superoxide reduction by the metalloenzyme. Kinetic studies suggest a proton-coupled electron-transfer mechanism; large H/D kinetic isotope effects (KIE) are observed. XAS studies suggest the transferred H-atom is in the form of a Ni^II-S(H)-Cys moiety (see graph).

A Super-Reduced Diferrous[2Fe–2S] Cluster

A Super-Reduced Diferrous
[2Fe–2S] Cluster:

Journal of the American Chemical Society

DOI: 10.1021/ja311563y

Combined Experimentaland Theoretical Study on theReductive Cleavage of Inert C–O Bonds with Silanes: Rulingout a Classical Ni(0)/Ni(II) Catalytic Couple and Evidence for Ni(I)Intermediates

Combined Experimental
and Theoretical Study on the
Reductive Cleavage of Inert C–O Bonds with Silanes: Ruling
out a Classical Ni(0)/Ni(II) Catalytic Couple and Evidence for Ni(I)
Intermediates:

Journal of the American Chemical Society

DOI: 10.1021/ja311940s

A Mononuclear Non-HemeManganese(IV)–Oxo ComplexBinding Redox-Inactive Metal Ions

A Mononuclear Non-Heme
Manganese(IV)–Oxo Complex
Binding Redox-Inactive Metal Ions:

Journal of the American Chemical Society DOI: 10.1021/ja312113p

Use of Sc+++ for CO2 is attractive perhaps.

Use of a Metallopeptide-Based Mimic Provides Evidence for a Proton-Coupled Electron-Transfer Mechanism for Superoxide Reduction By Nickel-Containing Superoxide Dismutase

Use of a Metallopeptide-Based Mimic Provides Evidence for a Proton-Coupled Electron-Transfer Mechanism for Superoxide Reduction By Nickel-Containing Superoxide Dismutase:

Sneaky little SOD! A metallopeptide-based mimic of nickel-containing superoxide dismutase was used to probe the mechanism of superoxide reduction by the metalloenzyme. Kinetic studies suggest a proton-coupled electron-transfer mechanism; large H/D kinetic isotope effects (KIE) are observed. XAS studies suggest the transferred H-atom is in the form of a Ni^II-S(H)-Cys moiety (see graph).

Isolable, Copper(I) DicarbonylComplexes Supported by N-Heterocyclic Carbenes

Isolable, Copper(I) Dicarbonyl
Complexes Supported by N-Heterocyclic Carbenes:

Inorganic Chemistry

DOI: 10.1021/ic302455y

C(sp3)–FBond Activation of CF3-Substituted Anilines withCatalytically GeneratedSilicon Cations: Spectroscopic Evidence for a Hydride-Bridged Ru–SDimer in the Catalytic Cycle

C(sp3)–F
Bond Activation of CF3-Substituted Anilines with
Catalytically Generated
Silicon Cations: Spectroscopic Evidence for a Hydride-Bridged Ru–S
Dimer in the Catalytic Cycle:

Journal of the American Chemical Society

DOI: 10.1021/ja311398j

Isolation of N-HeterocyclicAlkyl Intermediatesen Route to Transition Metal N-Heterocyclic Carbene Complexes:Insight into a C–H Activation Mechanism

Isolation of N-Heterocyclic
Alkyl Intermediates
en Route to Transition Metal N-Heterocyclic Carbene Complexes:
Insight into a C–H Activation Mechanism:

Organometallics

DOI: 10.1021/om301230f

Biomimetic model for [FeFe]-hydrogenase: asymmetrically disubstituted diiron complex with a redox-active 2,2[prime or minute]-bipyridyl ligand

Biomimetic model for [FeFe]-hydrogenase: asymmetrically disubstituted diiron complex with a redox-active 2,2[prime or minute]-bipyridyl ligand:

Dalton Trans., 2013, Advance Article
DOI: 10.1039/C2DT32457A, Paper

Souvik Roy, Thomas L. Groy, Anne K. Jones
The ability of ([small mu ]-S(CH₂)₃S)Fe₂(CO)₄([small kappa]²-bpy) to electrocatalyze reduction of protons to hydrogen was characterized. The catalytic potential is higher than expected based on comparison to phosphine or N-heterocyclic carbene containing complexes.
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Conversion of Fe–NH2 to Fe–N2 with release of NH3

Conversion of Fe–NH2 to Fe–N2 with release of NH3:

Journal of the American Chemical Society

DOI: 10.1021/ja307714m

Oxygen Atom Transfer andOxidative Water Incorporationin Cuboidal Mn3MOn ComplexesBased on Synthetic, Isotopic Labeling, and Computational Studies

Oxygen Atom Transfer and
Oxidative Water Incorporation
in Cuboidal Mn3MOn Complexes
Based on Synthetic, Isotopic Labeling, and Computational Studies:

Journal of the American Chemical Society

DOI: 10.1021/ja310022p

Simplifying Nickel(0)Catalysis: An Air-Stable NickelPrecatalyst for the Internally Selective Benzylation of Terminal Alkenes

Simplifying Nickel(0)
Catalysis: An Air-Stable Nickel
Precatalyst for the Internally Selective Benzylation of Terminal Alkenes:

Journal of the American Chemical Society

DOI: 10.1021/ja3116718

Iridium-Catalyzed HydrosilylativeReduction of Glucoseto Hexane(s)

Iridium-Catalyzed Hydrosilylative
Reduction of Glucose
to Hexane(s):

Journal of the American Chemical Society

DOI: 10.1021/ja3110494

The Isolation of [Pd{OC(O)H}(H)(NHC)(PR3)] (NHC = N-Heterocyclic Carbene) and Its Role in AlkeneandAlkyne Reductions Using Formic Acid

The Isolation of [Pd{OC(O)H}(H)(NHC)(PR3)] (NHC = N-Heterocyclic Carbene) and Its Role in Alkene
and
Alkyne Reductions Using Formic Acid:

Journal of the American Chemical Society

DOI: 10.1021/ja311087c

Conversion of Fe–NH2 to Fe–N2 with release of NH3

Conversion of Fe–NH2 to Fe–N2 with release of NH3:

Journal of the American Chemical Society

DOI: 10.1021/ja307714m