scholarly journals Ligand coordination modulates reductive elimination from aluminium(iii)

2016 ◽  
Vol 45 (35) ◽  
pp. 13695-13699 ◽  
Author(s):  
Stephanie J. Urwin ◽  
David M. Rogers ◽  
Gary S. Nichol ◽  
Michael J. Cowley
Keyword(s):  
Oxidative Addition ◽  
Reductive Elimination ◽  
Main Group ◽  
Mechanistic Study ◽  
Ligand Effects ◽  
Major Class ◽  
Reverse Process ◽  
Ligand Coordination ◽  
Low Valent

Oxidative addition to low-valent main-group centres is a major class of reactivity for these species. Here, we present a mechanistic study of the much rarer reverse process – reductive elimination – in Al(iii) systems, and unravel ligand effects in this process.

Molecular Rearrangements of a Low-Valent Niobium Amide:  Ligand C−H Bond Oxidative Addition and Reductive Elimination

1998 ◽  
Vol 17 (19) ◽  
pp. 4282-4290 ◽  
Author(s):  
Maryam Tayebani ◽  
Khalil Feghali ◽  
Sandro Gambarotta ◽  
Glenn Yap
Keyword(s):  
Oxidative Addition ◽  
Reductive Elimination ◽  
Molecular Rearrangements ◽  
Low Valent

scholarly journals Mechanistic Study of Stepwise Methylisocyanide Coupling and C–H Activation Mediated by a Low-Valent Main Group Molecule

2013 ◽  
Vol 135 (16) ◽  
pp. 6257-6261 ◽  
Author(s):  
Zachary D. Brown ◽  
Petra Vasko ◽  
Jeremy D. Erickson ◽  
James C. Fettinger ◽  
Heikki M. Tuononen ◽  
...  
Keyword(s):  
Main Group ◽  
Mechanistic Study ◽  
Low Valent

Reversible Oxidative-Addition and Reductive-Elimination of Thiophene from a Titanium Complex and Its Thermally-Induced Hydrodesulfurization Chemistry

2019 ◽  
Author(s):  
Alejandra Gomez-Torres ◽  
J. Rolando Aguilar-Calderón ◽  
Carlos Saucedo ◽  
Aldo Jordan ◽  
Alejandro J. Metta-Magaña ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Ring Opening ◽  
Thiophene Ring ◽  
Oxidative Addition ◽  
Reductive Elimination ◽  
Thermally Induced ◽  
Titanium Complex

<p>The masked Ti(II) synthon (<sup>Ket</sup>guan)(<i>η</i><sup>6</sup>-Im<sup>Dipp</sup>N)Ti (<b>1</b>) oxidatively adds across thiophene to give ring-opened (<sup>Ket</sup>guan)(Im<sup>Dipp</sup>N)Ti[<i>κ</i><sup>2</sup>-<i>S</i>(CH)<sub>3</sub><i>C</i>H] (<b>2</b>). Complex <b>2</b> is photosensitive, and upon exposure to light, reductively eliminates thiophene to regenerate <b>1</b> – a rare example of early-metal mediated oxidative-addition/reductive-elimination chemistry. DFT calculations indicate strong titanium π-backdonation to the thiophene π*-orbitals leads to the observed thiophene ring opening across titanium, while a proposed photoinduced LMCT promotes the reverse thiophene elimination from <b>2</b>. Finally, pressurizing solutions of <b>2 </b>with H<sub>2</sub> (150 psi) at 80 °C leads to the hydrodesulfurization of thiophene to give the Ti(IV) sulfide (<sup>Ket</sup>guan)(Im<sup>Dipp</sup>N)Ti(S) (<b>3</b>) and butane. </p>

Interconversion of Quadruply and Quintuply Bonded Molybdenum Complexes by Reductive Elimination and Oxidative Addition of Dihydrogen

2013 ◽  
Vol 125 (11) ◽  
pp. 3309-3313 ◽  
Author(s):  
Mario Carrasco ◽  
Natalia Curado ◽  
Celia Maya ◽  
Riccardo Peloso ◽  
Amor Rodríguez ◽  
...  
Keyword(s):  
Oxidative Addition ◽  
Reductive Elimination ◽  
Molybdenum Complexes

Reductive elimination of [AlH2]+ from a cationic Ga-Al dihydride

2021 ◽  
Author(s):  
Jun Okuda ◽  
Louis J. Morris ◽  
Laurent Maron ◽  
Ambre Carpentier
Keyword(s):  
Oxidative Addition ◽  
Reductive Elimination ◽  
Metal Bond ◽  
Metal Metal

Oxidative addition of TMEDA-supported [AlH2]+ to [{BDI}Ga] (BDI = {HC(C(CH3)N(2,6-iPr2-C6H3))2) provides [{BDI}Ga(H)-Al(H)(tmeda)]¬[B(C6H3-3,5-Me2)4] (TMEDA = N,N,N’N’-tetramethylethylene¬diamine) with a covalent metal-metal bond. The reaction is readily reversed by substituting TMEDA for an...

Main-group metal complexes of α-diimine ligands: structure, bonding and reactivity

2021 ◽  
Author(s):  
Rong Zhang ◽  
Yanchao Wang ◽  
Yanxia Zhao ◽  
Carl Redshaw ◽  
Igor L. Fedushkin ◽  
...  
Keyword(s):  
Metal Complexes ◽  
Small Molecule ◽  
Main Group ◽  
Group Metal ◽  
Diimine Ligands ◽  
Main Group Metal ◽  
Metal Metal ◽  
Low Valent

The use of dad (and bian) ligands in the stabilization of main-group complexes, in particular metal–metal-bonded compounds, as well as the small molecule reactivity of these (low-valent) metal complexes, is summarized.

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