RESUMEN
A dual catalyst containing Pd and CuFe(2)O(4) nanoparticles in a silica shell exhibits >98% conversion of arylacetylenes to related styrenes with selectivity greater than 98%, which are better than those obtained using a commercial Lindlar catalyst. The excellent synergy was likely a result of the proximal interaction between Pd and CuFe(2)O(4) nanoparticles.
RESUMEN
Copper nitride nanoparticles supported on a mesoporous superparamagnetic silica microsphere exhibit superior activity toward the Huisgen cycloaddition of azides and alkynes. The nitride catalyst offers significant advantages over homogeneous Cu catalysts.
RESUMEN
The structural and spectroscopic properties of new heteroleptic iridium complexes having a biphenyl and two bipyridyl based ligands are reported; DFT calculations reveal that the HOMO is composed of the biphenyl and iridium d orbitals while the LUMO is localized mainly on the two bipyridyl based ligands.