Synthesis, structure and luminescence properties of new chalcogenide octahedral rhenium cluster complexes with 4-aminopyridine [{Re(6)Q(8)}(4-NH2-py)(6)](2+)

Abstract

Two new cationic octahedral rhenium cluster complexes [{Re(6)Q(8)}(4-NH2-py)(6)](2+) (Q = S, Se; 4-NH2-py = 4-aminopyridine) were synthesized by reactions of cesium salts of cluster anions [{Re(6)Q(8)}Br-6](4-/3-) with molten 4-aminopyridine. Both complexes were separated as salts with Br- as counterions and the structure of [{Re6S8}(4-NH(2)(-)py)(6)]Br-2 center dot 6DMF was revealed by X-ray single-crystal diffraction analysis. The compounds were characterized by elemental analysis, energy dispersive X-ray, IR, NMR, and luminescence spectroscopies. [GRAPHICS] .