Spectroscopic and structural comparisons are made between the rhenium anions with bpy- R ligands spanning a wide range of electron-withdrawing and donating abilities (R= CF3, H, Me, tBu, OMe). The synthesis and characterization of the rhenium anions [Re (bpy-R)(CO) 3]− 1 (bpy-R= 4, 4′-disubstitued-2, 2′-bipyridine; R= CF3, Me, OMe) are reported. The anions [Re (bpy-R)(CO) 3]− 1 (R= Me and OMe) were structurally characterized. X-ray ...
[McFarland, Sherri A.; Cheng, Karen A. W. Y.; Lee, Felix S.; Cozens, Frances L.; Schepp, Norman P. Canadian Journal of Chemistry, 2008 , vol. 86, # 12 p. 1118 - 1125]