Rhenium Cluster Complexes Research Articles

Recent Progress in the Chemistry of Rhenium Cluster Complexes and Its Relevance to the Prospect of Corresponding Technetium Chemistry

Metal-metal bonded cluster complexes represent one of the important groups of compounds of group 7 elements, technetium and rhenium. While the chemistry of rhenium-rhenium bonded cluster complexes has developed extensively in these years, corresponding chemistry of technetium remains largely unrevealed. A general rule to classify the metal-metal bonded structural cores in terms of the number of d electrons, is presented, and existing Re-Re bonded cluster complexes are summarized accordingly. Recent progress of hexarhenium cluster complexes has been introduced as a typical example. From these overviews on the Re-Re cluster complexes, it is suggested that the chemistry of Tc-Tc bonded cluster complexes is highly promising.

Synthesis and structures of tetranuclear rhenium–cobalt mixed metal sulfide clusters [Re 3CoS 4Cl 6(PMe 2Ph) 4

An isomeric pair of the title compounds have been prepared and characterized by NMR spectroscopy and X-ray crystallography. The major isomer contains three dimethylphenylphoshine ligands coordinated to rhenium atoms in the direction of the μ 3-S atom in the starting trinuclear rhenium cluster complex, whereas the minor isomer has a dimethylphenylphosphine ligand in the opposite direction. The temperature of the preparative reactions controls the orientation of the phosphine ligands.

Tellurium-containing rhenium cluster complexes

Synthetic procedures as well as the structures and some properties of tetrahedral and octahedral tellurium-containing rhenium cluster complexes are reported. Crystal chemistry of various types of structure is discussed.