As a result of observations madc by Roscnberg in the early 1960s~ a range of platinum compounds have been discovered which have significant anti-tumour properties (I, 2). The two prototype compounds originally mvcstigated are the cis isomers of diamminoplatinum(I1) dichloride and diammino-platinum(1V) tetrachloride. The stercochemistries are shown in Figure I . The t ~ m s i omers of these comp...

Developing catalysts that provide the effective activation of hydrogen and selective absorption of substrate on metal surface is crucial to simultaneously improve activity and selectivity of hydrogenation reaction. Here we present an unique in situ etching and coordination synthetic strategy for exploiting a functionalized metal-organic framework to incorporate the bimetallic platinum-nickel fr...

Platinum is a scarce and expensive metal that is mostly used as a catalytic active material for energy converting devices like fuel cells. The more cost-effective metal nickel and its alloys are an interesting alternative to platinum. For this purpose, we fabricated ligand-free and purely electrostatically stabilized nickel-molybdenum nanoparticles by laser ablation in liquid and characterized ...

Electrooptical devices and optical communications need compounds with second-order nonlinear (NLO) properties as construction blocks. Typically, to show a large quadratic hyperpolarizability, compound should be asymmetric, characterized by variation between the dipole moments in excited ground states, have low energy electronic transitions. For example, hyperpolarizability can reached when an e...

Nanoparticle alloys of platinum (Pt) and another metal are desirable for catalytic applications to decrease the loading of the precious metal and alter the physiochemical structure of these materials to enhance their catalytic properties. This study explores the potential of producing gold and platinum nanoparticle alloys using a microplasma reduction technique. In this process, metal salt prec...

The mortality rates from various tumor types can be reduced dramatically by use of highly active drugs. This is particularly true for platinum-based drugs, being among the most effective antineoplastic agents for a number of malignancies (e.g., testicular, ovarian, head and neck, and bladder cancers). Platinum coordination compounds have been successfully applied in cancer chemotherapy for more...

The synthesis of chiral compounds is of crucial importance in many areas of society and science, including medicine, biology, chemistry, biotechnology and agriculture. Thus, there is a fundamental interest in developing new approaches for the selective production of enantiomers. Here we report the use of mesoporous metal structures with encoded geometric chiral information for inducing asymmetr...

Hydrido complexes, especially of the platinum group metals, have a pivotal role in homogeneous catalysis (1). They appear as intermediates in many catalytic cycles, including hydroformylation, asymmetric hydrogenation, hydroxycarboxylation, and oligomerisation of olefins. In order to perform highly selective hydrido-mediated catalytic reactions it is essential that ligands are present which all...

Density functional theory calculations are performed on 38 and 79 metal atom truncated octahedron clusters to study oxygen dissociation as a model for the initial stage of the oxygen reduction reaction. Pure platinum and alloyed platinum-titanium core-shell systems are investigated. It is found that barrierless oxygen dissociation occurs on the (111) facet of the pure platinum clusters. A barri...