Csp3−H Activation without Chelation Assistance in an Iridium Pincer Complex Forming Cyclometallated Products

2017 ◽  
Vol 23 (8) ◽  
pp. 1748-1751 ◽  
Author(s):  
David A. Ahlstrand ◽  
Alexey V. Polukeev ◽  
Rocío Marcos ◽  
Mårten S. G. Ahlquist ◽  
Ola F. Wendt
Keyword(s):  
Pincer Complex

Carbocyclic Pincer Carbene Complexes of Ruthenium: Syntheses and Reversible Hydrogenation

2021 ◽  
Author(s):  
Nicholas Wiedmaier ◽  
Hartmut Schubert ◽  
Hermann A Mayer ◽  
Lars Wesemann
Keyword(s):  
Carbene Complexes ◽  
Carbene Complex ◽  
Pincer Complex

The ruthenium carbene pincer complex 2 was synthesized treating the benzo annulated cycloheptatriene bisphosphine 1 with RuCl3. Addition of three equivalents of hydrogen to the carbocyclic carbene complex 2 was...

Palladium NNC Pincer Complex as an Efficient Catalyst for the Cycloisomerization of Alkynoic Acids

2016 ◽  
Vol 358 (20) ◽  
pp. 3283-3292 ◽  
Author(s):  
Nerea Conde ◽  
Raul SanMartin ◽  
María Teresa Herrero ◽  
Esther Domínguez
Keyword(s):  
Efficient Catalyst ◽  
Pincer Complex

scholarly journals Experimental realization of catalytic CH4 hydroxylation predicted for an iridium NNC pincer complex, demonstrating thermal, protic, and oxidant stability

2009 ◽  
pp. 3270 ◽  
Author(s):  
Kenneth J. H. Young ◽  
Jonas Oxgaard ◽  
Daniel H. Ess ◽  
Steven K. Meier ◽  
Timothy Stewart ◽  
...  
Keyword(s):  
Experimental Realization ◽  
Pincer Complex

Mechanisms of Electrochemical N2 Splitting by a Molybdenum Pincer Complex

2021 ◽  
Author(s):  
Quinton Bruch ◽  
Santanu Malakar ◽  
Alan Goldman ◽  
Alexander Miller
Keyword(s):  
Electrode Surface ◽  
Redox Reactions ◽  
Catalytic Reduction ◽  
Reaction Pathways ◽  
Bulk Solution ◽  
Mechanistic Study ◽  
Pincer Ligands ◽  
Computational Studies ◽  
Pincer Complex ◽  
Bond Scission

Molybdenum complexes supported by tridentate pincer ligands are exceptional catalysts for dinitrogen fixation using chemical reductants, but little is known about their prospects for electrochemical reduction of dinitrogen. The viability of electrochemical N2 binding and splitting by a molybdenum(III) pincer complex, (pyPNP)MoBr3 (pyPNP = 2,6-bis(tBu2PCH2)-C5H3N)), is established in this work, providing a foundation for a detailed mechanistic study of electrode-driven formation of the nitride complex (pyPNP)Mo(N)Br. Electrochemical kinetic analysis, optical and vibrational spectroelectrochemical monitoring, and computational studies point to two reaction pathways: in the “reaction layer” pathway, the molybdenum(III) precursor is reduced by 2e– and generates a bimetallic molybdenum(I) Mo2(-N2) species capable of N–N bond scission. In the “bulk solution” pathway the precursor is reduced by 3e– at the electrode surface to generate molybdenum(0) species that undergo chemical redox reactions via comproportionation in the bulk solution away from the electrode surface to generate the same bimetallic molybdenum(I) species capable of N2 cleavage. The comproportionation reactions reveal the surprising intermediacy of dimolybdenum(0) complex trans,trans-[(pyPNP)Mo(N2)2](-N2) in N2 splitting pathways. The same “over-reduced” molybdenum(0) species was also found to cleave N2 upon addition of lutidinium, an acid frequently used in catalytic reduction of dinitrogen.

Ni pincer complex catalytic hydroboration of CO2: a DFT study on the influence of borane reductants on the selective reduction

2021 ◽  
Author(s):  
Nana Ma ◽  
Qingli Xu ◽  
Chenhao Tu ◽  
Wenyue Guo ◽  
Guisheng Zhang
Keyword(s):  
Co2 Reduction ◽  
Selective Reduction ◽  
Dft Study ◽  
Pincer Complex

It has been reported that either the boryl formate (HCOOBR2), bis(boryl)acetal (R2BOCH2OBR2), or methoxy borane (R2BOCH3) product of CO2 reduction is selectively afforded adopting the Nickel (Ni) pincer catalyst by...

scholarly journals (Electro-)chemical Splitting of Dinitrogen with a Rhenium Pincer Complex

2020 ◽  
Vol 2020 (15-16) ◽  
pp. 1402-1410
Author(s):  
Richt S. van Alten ◽  
Florian Wätjen ◽  
Serhiy Demeshko ◽  
Alexander J. M. Miller ◽  
Christian Würtele ◽  
...  
Keyword(s):  
Pincer Complex

A meso-Spiro[Cyclopentadiene-Isoporphyrin] from a Phenylethynyl Porphyrin Platinum(II) Pincer Complex

2012 ◽  
Vol 51 (13) ◽  
pp. 3174-3177 ◽  
Author(s):  
Shoma Anabuki ◽  
Hiroshi Shinokubo ◽  
Naoki Aratani ◽  
Atsuhiro Osuka
Keyword(s):  
Pincer Complex

scholarly journals Frontispiece: Photochemically Driven Reverse Water-Gas Shift at Ambient Conditions mediated by a Nickel Pincer Complex

2018 ◽  
Vol 57 (44) ◽  
Author(s):  
Felix Schneck ◽  
Florian Schendzielorz ◽  
Nareh Hatami ◽  
Markus Finger ◽  
Christian Würtele ◽  
...  
Keyword(s):  
Water Gas Shift ◽  
Ambient Conditions ◽  
Reverse Water Gas Shift ◽  
Pincer Complex ◽  
Water Gas
Sign in / Sign up

Export Citation Format

Share Document