Track topics on Twitter Track topics that are important to you
Water-soluble ruthenium complexes [(η-arene)Ru(κ-L)] ( = 0,1) (-) ligated with pyridine-based ligands are synthesized, and the molecular structure of the representative complex is confirmed by X-ray crystallography. The studied complexes are employed for the catalytic dehydrogenation of formic acid in water. Screening of these complexes inferred that [(η-CH)Ru(κ-NOH-)Cl] ( = pyridine-2-ylmethanol) outperformed others with an initial turnover frequency of 1548 h. Complex also exhibited high stability in water and can be recycled up to seven times with a total turnover number of 6050. In addition to formic acid dehydrogenation, also catalyzed the conversion of formaldehyde to hydrogen gas in water under base-free conditions. The effects of temperature, pH, formic acid, and catalyst concentration on the reaction kinetics are investigated in detail. Mass and NMR based mechanistic investigations inferred the presence of several important intermediate species, such as ruthenium-formate species and ruthenium-hydride species , involved in the catalytic dehydrogenation reaction. Moreover, the molecular structure of a diruthenium species is also authenticated by single-crystal X-ray crystallography.
This article was published in the following journal.
Name: Inorganic chemistry
Insight into catalyst speciation and hydrogen co-evolution during enantioselective formic acid-driven transfer hydrogenation with bifunctional ruthenium complexes from multi-technique operando reaction monitoring.
Transfer hydrogenation of acetophenone from formic acid/triethylamine mixtures catalysed by the Ikariya-Noyori complex [(mesitylene)RuCl(R,R)-(TsDPEN)] has been investigated using simultaneous high-re...
This study introduces the catalyst-free production of levulinic acid (LA) and formic acid (FA) from spent coffee grounds (SCGs) as a starting material in a biphasic system of 1,2-dichloroethane (DCE)-...
The integrated process of formic acid pretreatment and pyrolysis of bamboo sawdust (BS) under microwave irradiation is developed to produce high-quality bio-oil in this study. Experimental results ind...
Full cost-effective exploitation of all wood components is key to growing a commercially successful biorefining industry. An innovative process is reported that combines fractionation of lignocellulos...
Starch agricultural leftover is a potential substrate for photosynthetic bacteria to produce hydrogen. In this work, the effect of initial pH on photo-fermentation biohydrogen production process and e...
RATIONALE: Exposure to formaldehyde in the work place may affect the risk of developing cancer later in life. Learning about the long-term effects of formaldehyde exposure may help the stu...
To determine the effectiveness of combining different concentrations of hydrogen peroxide and carbamide used during tooth bleaching.
This study is a placebo-controlled, double-blind trial that will investigate the safety and tolerability of molecular hydrogen, a promising antioxidant agent, in patients with early-stage ...
This study suggested that hydrogen has a potential as an effective and safe therapeutic agent on cGVHD.
A variety of non-pharmacological interventions have been used in the management of Alzheimer's disease (AD) and similar cognitive disorders in elderly, yet no therapeutic modality has demo...
ESTER derivatives of formic acid with the formula H-COO-R.
Unstable isotopes of ruthenium that decay or disintegrate emitting radiation. Ru atoms with atomic weights 93-95, 97, 103, and 105-108 are radioactive ruthenium isotopes.
Inorganic compounds that contain ruthenium as an integral part of the molecule.
Peroxidases that utilize ASCORBIC ACID as an electron donor to reduce HYDROGEN PEROXIDE to WATER. The reaction results in the production of monodehydroascorbic acid and DEHYDROASCORBIC ACID.
An inorganic dye used in microscopy for differential staining and as a diagnostic reagent. In research this compound is used to study changes in cytoplasmic concentrations of calcium. Ruthenium red inhibits calcium transport through membrane channels.
Radiology is the branch of medicine that studies imaging of the body; X-ray (basic, angiography, barium swallows), ultrasound, MRI, CT and PET. These imaging techniques can be used to diagnose, but also to treat a range of conditions, by allowing visuali...