CNN Pincer Ruthenium Catalysts for Hydrogenation and Transfer Hydrogenation of Ketones: Experimental and Computational Studies

2014 ◽  
Vol 20 (42) ◽  
pp. 13603-13617 ◽  
Author(s):  
Walter Baratta ◽  
Salvatore Baldino ◽  
Maria José Calhorda ◽  
Paulo J. Costa ◽  
Gennaro Esposito ◽  
...  
Keyword(s):  
Ruthenium Catalysts ◽  
Transfer Hydrogenation ◽  
Computational Studies

Highly efficient homogeneous and heterogenized ruthenium catalysts for transfer hydrogenation of carbonyl compounds

RSC Advances ◽  
2014 ◽  
Vol 4 (53) ◽  
pp. 27955-27962 ◽  
Author(s):  
S. Ganesamoorthy ◽  
P. Jerome ◽  
K. Shanmugasundaram ◽  
R. Karvembu
Keyword(s):  
Carbonyl Compounds ◽  
Ruthenium Catalysts ◽  
Transfer Hydrogenation ◽  
Highly Efficient

[Ru(acac)2(CH3CN)2] and its SiO2 immobilized form were found to be efficient catalysts for the transfer hydrogenation of carbonyl compounds.

scholarly journals An Iron Pyridyl-Carbene Catalyst for Low Overpotential CO2 reduction to CO: Mechanistic Comparisons with the Ruthenium Analogue and Photochemical Promotion

2020 ◽  
Author(s):  
Sergio Gonell ◽  
Julio Lloret ◽  
Alexander Miller
Keyword(s):  
Co2 Reduction ◽  
Iron Complexes ◽  
Transition Metal Ions ◽  
Ruthenium Catalysts ◽  
Computational Studies ◽  
Chelating Ligands ◽  
Faradaic Efficiency ◽  
Mechanistic Insight ◽  
Redox Active ◽  
Improved Performance

<div><div><div><p>Electrocatalysts for CO2 reduction based on first row transition metal ions have attracted attention as abundant and affordable candidates for energy conversion applications. We hypothesized that a successful strategy in ruthenium electrocatalyst design, featuring two chelating ligands that can be individually tuned to adjust the overpotential and catalytic activity, could be equally applicable in the analogous iron complexes. New iron complexes supported by a redox-active 2,2':6',2''-terpyridine (tpy) ligand and strong trans effect pyridyl- N-heterocyclic carbene ligand (1-methyl-benzimidazol-2-ylidene-3-(2-pyridine)) were synthesized, and these isostructural analogues to leading ruthenium catalysts were also found to be active CO2 reduction electrocatalysts. Electrochemical and computational studies reveal completely distinct mechanisms for the iron and ruthenium complexes, with hemilability in the iron system enabling electrocatalysis at overpotentials as low as 150 mV (ca. 500 mV lower than the ruthenium analogue). Cyclic voltammetry studies elucidated the mechanism of the net 4e–/2H+ process that occurs within the single reductive feature, with an iron solvento complex undergoing reduction, CO2 activation, and further reduction to an iron carbonyl. The mechanistic insight guided development of photoelectrocatalytic conditions under a continuous flow of CO2 that exhibited improved performance, with Faradaic efficiency up to 99%.</p></div></div></div>

New N,N,N-Donors Resulting in Highly Active Ruthenium Catalysts for Transfer Hydrogenation at Room Temperature

2011 ◽  
Vol 2011 (23) ◽  
pp. 3431-3437 ◽  
Author(s):  
Leila Taghizadeh Ghoochany ◽  
Saeid Farsadpour ◽  
Yu Sun ◽  
Werner R. Thiel
Keyword(s):  
Room Temperature ◽  
Ruthenium Catalysts ◽  
Transfer Hydrogenation ◽  
Highly Active

Transfer hydrogenation of aryl ketones with homogeneous ruthenium catalysts containing diazafluorene ligands

2016 ◽  
Vol 30 (12) ◽  
pp. 1030-1035 ◽  
Author(s):  
Mehmet Fırat Baran ◽  
Feyyaz Durap ◽  
Murat Aydemir ◽  
Akın Baysal
Keyword(s):  
Ruthenium Catalysts ◽  
Transfer Hydrogenation ◽  
Aryl Ketones
Sign in / Sign up

Export Citation Format

Share Document