16009-65-7Relevant academic research and scientific papers
Synthetic routes to luminescent 2,2′-bipyridyl complexes of rhenium: Preparation and spectral and redox properties of mono(bipyridyl) complexes of rhenium (III) and rhenium(I)
Caspar, Jonathan V.,Sullivan, B. Patrick,Meyer, Thomas J.
, p. 2104 - 2109 (2008/10/08)
New methods of preparing 2,2′-bipyridyl (bpy) complexes of rhenium are described. The procedures involve starting complexes of Re(IV), Re(III), and Re(I) and result in new bpy complexes of the type fac-ReIII(bpy)(P)Cl3, trans,cis-[ReIII(bpy)(P)2Cl2]+, and trans,cis-[Re(bpy)(P)2(CO)2]+, where P is a tertiary phosphine. In addition, the complex cis-[Re(bpy)2(CO)2]+ has been prepared, which is a rare example of a bis(bipyridyl)rhenium species. Aspects of the NMR spectra, electronic spectra, and electrochemistry of the complexes are discussed, and special attention is given to the fact that the ReI(bpy) complexes luminescence in fluid solution at room temperature. They represent a growing class of potentially exploitable metal-to-ligand charge-transfer (MLCT) excited-state species of Re(I) that have potential interest for use in photochemical energy conversion schemes.
