The synthesis of a series of tridentate ligands based on a homochiral 1,2-diamine structure attached to a triazole group and their subsequent applications to the asymmetric transfer hydrogenation of ketones are described. In the best cases, alcohols of up to 93% ee were obtained. Although base is not required, the use of Ru(3)(CO)(12) as metal source is essential, indicating a unique mechanism ...

Monodisperse sub-10 nm Rh nanocubes were synthesized with high selectivity (>85%) by a seedless polyol method. The {100} faces of the Rh NCs were effectively stabilized by chemically adsorbed Br- ions from trimethyl(tetradecyl)ammonium bromide (TTAB). This simple one-step polyol route can be readily applied to the preparation of Pt and Pd nanocubes. Moreover, the organic molecules of PVP and TT...

The sonochemical decomposition of volatile organometallic compounds produces high surface area solids that consist of agglomerates of nanometer clusters. For iron pentacarbonyl and tricarbonylnitrosylcobalt, nanostructured metals and alloys are formed; for molybdenum hexacarbonyl, the metal carbide is produced. These sonochemically produced nanostructured solids are active heterogeneous catalys...

The main goal of this work was to study the hydrogen interactions with carbon nanostructures (graphene grown on Pt(111), and carbon nanotube (CNT)/Pt composites) in lieu towards finding answers related to two bigger questions – (a) hydrogen storage possibility in carbon nanostructures and (b) band gap opening in graphene (for device applications). X-ray spectroscopy was used as the main experim...

Combining CO 2 and H for chemo- regioselective hydroformylation of alkenes has been realized. The key to success is the use a bifunctional Rh/PTA catalyst, which can ingeniously combine efficient hydrogenation hydroformylation.

The stepwise hydrogenation of the C=C bond and C=O group of acrolein on Au3 and Au5 model systems is investigated using the density functional theory(DFT) PW91 functional. Our results show that the C=C hydrogenation is more favorable than that of C=O bond on Au3 with the barriers of the rate-determining step being 0.35 and 0.62 eV respectively. On the other hand, the C=O reduction is preferred ...

A novel foam-like Ni@Ni(OH)2 composite nanomaterial, synthesized by an organometallic approach, exhibited remarkable robustness and high catalytic performance for CO2 hydrogenation to formate.

The TiO 2 support phase composition (anatase/rutile ratio) directly impacts key factors such as the metal–support interaction and nanoparticle size driving Co catalyst performances in ?-valerolactone hydrogenation to 2-methyltetrahydrofuran.

By first-principles calculations, the singly dispersed bimetallic site, Pd 1 Co 4 /CoO x SCC, is proposed to exhibit superior charge buffer capacity towards thermal dinitrogen hydrogenation based on a superimposed evaluation strategy.