Synthesis, structure, and properties of compounds containing both octahedral rhenium cluster cations and anions

摘要

The compound [{Re6S8}( 3,5-Me(2)pzH)(6)](2)[{Re6S8}Br-6] center dot 9H(2)O center dot 4EtOH containing a cluster cation and a cluster anion in a 2 : 1 ratio was synthesized by mixing an ethanol solution of the rhenium cluster complex [{Re6S8}(3,5-Me(2)pzH)(6)]Br-2 center dot 2(3,5-Me(2)pzH) (pzH is pyrazole) with an aqueous solution of Cs-4[{Re6S8}Br-6] center dot 2H(2)O. The resulting compound was characterized by a combination of physicochemical methods. In particular, luminescence properties were studied and compared with those of the parent cluster complexes. A crystal suitable for single-crystal X-ray diffraction was obtained by layering these solutions. According to single-crystal X-ray diffraction analysis, this compound is composed of a cluster cation and a cluster anion (in a ratio of 1 : 1) and also of Zundel cations (H5O2+) and solvate water molecules and is described by the formula (H5O2)(2)[{Re6S8}(3,5-Me(2)pzH)(6)][{Re6S8}Br-6] center dot 4H(2)O.