scholarly journals Decarbonylative ether dissection by iridium pincer complexes

2020 ◽  
Vol 11 (44) ◽  
pp. 12130-12138
Author(s):  
Changho Yoo ◽  
Henry M. Dodge ◽  
Alexandra H. Farquhar ◽  
Kristen E. Gardner ◽  
Alexander J. M. Miller
Keyword(s):  
Carbon Monoxide ◽  
Pincer Complexes ◽  
Iridium Pincer Complexes

A unique chain-rupturing transformation that converts an ether functionality into two hydrocarbyl units and carbon monoxide is reported.

Synthesis, characterization and reactivity of iridium pincer complexes

Polyhedron ◽  
2018 ◽  
Vol 143 ◽  
pp. 126-131 ◽  
Author(s):  
Sara Shafiei-Haghighi ◽  
Laci M. Singer ◽  
Sem R. Tamang ◽  
Michael Findlater
Keyword(s):  
Pincer Complexes ◽  
Iridium Pincer Complexes

ChemInform Abstract: Dehydrogenation and Related Reactions Catalyzed by Iridium Pincer Complexes

ChemInform ◽  
2011 ◽  
Vol 42 (29) ◽  
pp. no-no
Author(s):  
Jongwook Choi ◽  
Amy H. Roy MacArthur ◽  
Maurice Brookhart ◽  
Alan S. Goldman
Keyword(s):  
Pincer Complexes ◽  
Iridium Pincer Complexes

Catalytic alkane transfer-dehydrogenation by PSCOP iridium pincer complexes

Polyhedron ◽  
2016 ◽  
Vol 116 ◽  
pp. 12-19 ◽  
Author(s):  
Wubing Yao ◽  
Xiangqing Jia ◽  
Xuebing Leng ◽  
Alan S. Goldman ◽  
Maurice Brookhart ◽  
...  
Keyword(s):  
Pincer Complexes ◽  
Iridium Pincer Complexes

scholarly journals Comparing the Acidity of (R3P)2BH-Based Donor Groups in Iridium Pincer Complexes

Inorganics ◽  
2019 ◽  
Vol 7 (5) ◽  
pp. 61 ◽  
Author(s):  
Leon Maser ◽  
Christian Schneider ◽  
Lukas Alig ◽  
Robert Langer
Keyword(s):  
Secondary Amine ◽  
Quantum Chemical ◽  
Reductive Elimination ◽  
Pincer Complexes ◽  
Donor Group ◽  
Initial Product ◽  
Square Planar ◽  
Neutral Ligands ◽  
Stretching Vibrations ◽  
Iridium Pincer Complexes

In the current manuscript, we describe the reactivity of a series of iridium(III) pincer complexes with the general formulae [(PEP)IrCl(CO)(H)]n (n = +1, +2) towards base, where PEP is a pincer-type ligand with different central donor groups, and E is the ligating atom of this group (E = B, C, N). The donor groups encompass a secondary amine, a phosphine-stabilised borylene and a protonated carbodiphosphorane. As all ligating atoms E exhibit an E–H bond, we addressed the question of wether the coordinated donor group can be deprotonated in competition to the reductive elimination of HCl from the iridium(III) centre. Based on experimental and quantum chemical investigations, it is shown that the ability for deprotonation of the coordinated ligand decreases in the order of (R3P)2CH+ > R2NH > (R3P)2BH. The initial product of the reductive elimination of HCl from [(PBP)IrCl(CO)(H)]n (1c), the square planar iridium(I) complex, [(PBP)Ir(CO)]+ (3c), was found to be unstable and further reacts to [(PBP)Ir(CO)2]+ (5c). Comparing the C–O stretching vibrations of the latter with those of related complexes, it is demonstrated that neutral ligands based on tricoordinate boron are very strong donors.

Divergent Reactivity of CO2 and CO and Related Substrates at the Nickel Carbon Double Bond of (PCcarbeneP)Ni(II) Pincer Complexes

2018 ◽  
Author(s):  
Etienne A. LaPierre ◽  
Warren Piers ◽  
Chris Gendy
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Double Bond ◽  
Transfer Reactions ◽  
Pincer Complexes ◽  
Pincer Ligand ◽  
Group Transfer ◽  
Ligand Structure ◽  
Carbon Double Bond

The addition of carbon monoxide (CO), carbon dioxide (CO<sub>2</sub>) and isoelectronic isocyanide and isocyanates to the nickel carbene bond in PC<sub>carbene</sub>P pincer complexes is reported. For CO and CNR, irreversible group transfer reactions are observed, while for CO<sub>2</sub>, a reversible 2+2 addition to the carbene moiety occurs. The course of the CO and CO<sub>2</sub> reactions are strongly affected by the nature of the PC<sub>carbene</sub>P pincer ligand framework and a new more rigid ligand based on a 10,10-dimethyl-9,10-dihydroanthracene core was designed in order to study these reactions, illustrating the profound effect of small changes in ligand structure on reaction outcomes.

Striking Differences between the Solution and Solid-State Reactivity of Iron PNP Pincer Complexes with Carbon Monoxide

2009 ◽  
Vol 28 (24) ◽  
pp. 6902-6914 ◽  
Author(s):  
David Benito-Garagorri ◽  
Luis Gonçalo Alves ◽  
Michael Puchberger ◽  
Kurt Mereiter ◽  
Luis F. Veiros ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Solid State ◽  
Pincer Complexes

Divergent Reactivity of CO2 and CO and Related Substrates at the Nickel Carbon Double Bond of (PCcarbeneP)Ni(II) Pincer Complexes

2018 ◽  
Author(s):  
Etienne A. LaPierre ◽  
Warren Piers ◽  
Chris Gendy
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Double Bond ◽  
Transfer Reactions ◽  
Pincer Complexes ◽  
Pincer Ligand ◽  
Group Transfer ◽  
Ligand Structure ◽  
Carbon Double Bond

The addition of carbon monoxide (CO), carbon dioxide (CO<sub>2</sub>) and isoelectronic isocyanide and isocyanates to the nickel carbene bond in PC<sub>carbene</sub>P pincer complexes is reported. For CO and CNR, irreversible group transfer reactions are observed, while for CO<sub>2</sub>, a reversible 2+2 addition to the carbene moiety occurs. The course of the CO and CO<sub>2</sub> reactions are strongly affected by the nature of the PC<sub>carbene</sub>P pincer ligand framework and a new more rigid ligand based on a 10,10-dimethyl-9,10-dihydroanthracene core was designed in order to study these reactions, illustrating the profound effect of small changes in ligand structure on reaction outcomes.

Effect of Ligands on the Lewis Acidity of the Metal and the Binding of N-Bases to Iridium Pincer Complexes

2019 ◽  
Vol 2019 (10) ◽  
pp. 1389-1397 ◽  
Author(s):  
Elena S. Osipova ◽  
Ekaterina S. Gulyaeva ◽  
Oleg A. Filippov ◽  
Sergey V. Safronov ◽  
Alexander A. Pavlov ◽  
...  
Keyword(s):  
Lewis Acidity ◽  
Pincer Complexes ◽  
Iridium Pincer Complexes
Sign in / Sign up

Export Citation Format

Share Document