Nonanuclear zinc-gold [Zn3Au6] heterobimetallic complexes

Nonanuclear zinc-gold heterobimetallic complexes were synthesized in a two-step process. Commercially available carboxy-functionalized phosphine ligands were used for selective binding to Zn and Au centers. In the first step, bipyridine coordinated Zn-metalloligands with free phosphine moieties were prepared. Reaction of Zn-metalloligands with [AuCl(tht)] (tht = tetrahydrothiophene) resulted in the formation of nonanuclear Zn-Au heterobimetallic complexes. The flexibility of the carboxy-functionalized phosphine ligands was shown to be crucial for the formation of aurophilic interactions. Further, the photoluminescence of the Zn-metalloligands and one Zn-Au complex was investigated at room temperature as well as 77 K. The emission spectra showed clear difference between the Zn-metalloligands and the Zn-Au complex.

The crystal structure of bis{3-(diphenylphosphaneyl)propanoato-κ2 O,P}platinum(II) dihydrate, C30H28O6P2Pt

C30H28O6P2Pt, monoclinic, C2/c (no. 15), a = 16.911(3) Å, b = 9.516(2) Å, c = 16.790(3) Å, β = 100.830(4)°, V = 2653.8(9) Å3, Z = 4, R gt(F) = 0.0126, wR ref(F 2) = 0.0310, T = 293 K.

Chemoselective and efficient catalytic hydrogenation of furfural by iridium and ruthenium half-sandwich complexes

A recyclable homogeneous iridium complex for the selective synthesis of furfuryl alcohol from furfural without additional solvent and hydrogen gas.

Macrocyclic multinuclear metal complexes acting as catalysts for organic synthesis

Recent progress in homogeneous catalysis with macrocyclic multinuclear metal complexes (categories A–C) is overviewed.

A dimolybdenum paddlewheel as a building block for heteromultimetallic structures

A series of heteromultimetallic complexes, containing a Mo₂⁴⁺core unit, were synthesized based on a bifunctional phosphine–carboxylic acid ligand system, leadingi.e.to the formation of supramolecular structuresviaaurophilic interactions.