CO, CO2 and CS2 Activation by Divalent Ytterbium Hydrido Complex

Treatment of divalent ytterbium hydride complex [(TpAd,iPr)Yb(H)(THF)] (TpAd,iPr = hydrotris(3-adamantyl-5-isopropyl- pyrazolyl)borate) (1) with CO, CO2 and CS2 resulted in the formation of divalent ytterbium ethenediolate complex [(TpAd,iPr)Yb]2(cis-OCH=CHO) (2), formate complex...

Theoretical mechanistic insights into dinitrogen cleavage by a dititanium hydride complex bearing PNP-pincer ligands

The mechanism of dinitrogen cleavage by a PNP-coordinated dititanium polyhydride complex has been computationally investigated. A “multi-state reactivity” scenario has been disclosed for the whole process of N2 coordination and...

Copper–Ligand Cooperativity in H2 Activation Enables the Synthesis of Copper Hydride Complexes

Copper(I) complexes of a new participative triphosphane ligand (<b>2^H</b>) have been prepared and structurally characterized, in particular [Cu(<b>2^H</b>)I] and [Cu(<b>2</b>)]₂. Hydrogenation of the latter species afforded the trimetallic hydride species [Cu₃(<b>2</b>)₂(µ-H)] or in the presence of BEt₃, [Cu(<b>2^H</b>)(HBEt₃)]. Their formation evidences transient formation of [Cu(<b>2^H</b>)H] formed by hydrogenolysis of the Cu‒<br>N bond of [Cu(<b>2</b>)]₂. [Cu(<b>2^H</b>)(HBEt₃)] behaves like a hydride complex and inserts CO₂ to yield the formate product [Cu(<b>2^H</b>)(O₂CH)].<br>

Copper–Ligand Cooperativity in H2 Activation Enables the Synthesis of Copper Hydride Complexes

Copper(I) complexes of a new participative triphosphane ligand (<b>2^H</b>) have been prepared and structurally characterized, in particular [Cu(<b>2^H</b>)I] and [Cu(<b>2</b>)]₂. Hydrogenation of the latter species afforded the trimetallic hydride species [Cu₃(<b>2</b>)₂(µ-H)] or in the presence of BEt₃, [Cu(<b>2^H</b>)(HBEt₃)]. Their formation evidences transient formation of [Cu(<b>2^H</b>)H] formed by hydrogenolysis of the Cu‒<br>N bond of [Cu(<b>2</b>)]₂. [Cu(<b>2^H</b>)(HBEt₃)] behaves like a hydride complex and inserts CO₂ to yield the formate product [Cu(<b>2^H</b>)(O₂CH)].<br>

Copper–Ligand Cooperativity in H2 Activation Enables the Synthesis of Copper Hydride Complexes

Copper(I) complexes of a new participative triphosphane ligand (<b>2^H</b>) have been prepared and structurally characterized, in particular [Cu(<b>2^H</b>)I] and [Cu(<b>2</b>)]₂. Hydrogenation of the latter species afforded the trimetallic hydride species [Cu₃(<b>2</b>)₂(µ-H)] or in the presence of BEt₃, [Cu(<b>2^H</b>)(HBEt₃)]. Their formation evidences transient formation of [Cu(<b>2^H</b>)H] formed by hydrogenolysis of the Cu‒<br>N bond of [Cu(<b>2</b>)]₂. [Cu(<b>2^H</b>)(HBEt₃)] behaves like a hydride complex and inserts CO₂ to yield the formate product [Cu(<b>2^H</b>)(O₂CH)].<br>

Zirconium-Hydride-Catalyzed Transfer Hydrogenation of Quinoline and Indole with Ammonia Borane

Herein, by applying zirconium-hydride complex as the catalyst, the transfer hydrogenation of quinoline and indole derivatives with ammonia borane as the proton and hydride source is achieved. Up to 94%...

Oxidative Addition, Reduction and Reductive Coupling: The Versatile Reactivity of Subvalent Gallium Cations.

Intrigued by the successful oxidative addition of a P-H bond to univalent Ga[Al(ORF)4] giving the unprecedented dicationic gallium hydride complex [H-Ga(PPh3)3][Al(ORF)4]2 (ORF = OC(CF3)3), the oxidative addition of E-Cl containing...