Stabilization and Destabilization of the Ru−CO Bond During the 2,2′‐Bipyridin‐6‐onato (bpyO)‐Localized Redox Reaction of [Ru(terpy)(bpyO)(CO)](PF₆)

Abstract

+ undergo one, reversible reduction at E 1/2 = −1.65 V and −1.51 V, respectively, and one

Push or Pull? Proton Responsive Ligand Effects in Rhenium Tricarbonyl CO2 Reduction Catalysts

“…While protonation of bound CO 2 is possible, the acid-base properties of the ligand cannot be ignored. 25 3 Cl]; however, only 19 µL of CO was produced.…”

“…[24][25][26][27][28][29][30] Hydrogenation of CO 2 using Rh, Ir, and Ru complexes of 4,4′-dihydroxy-2,2′-bipyridine (4DHBP) is enhanced in basic media due to the acid/base equilibrium of the ligand and the strong electron donating property in the oxyanion form ( Figure 1). [24][25][26][27][28][29][30] Hydrogenation of CO 2 using Rh, Ir, and Ru complexes of 4,4′-dihydroxy-2,2′-bipyridine (4DHBP) is enhanced in basic media due to the acid/base equilibrium of the ligand and the strong electron donating property in the oxyanion form ( Figure 1).…”

Dicarbonylrhodium(I) Complexes of Bipyridine Ligands with Proximate H‐Bonding Substituents and Their Application in Methyl Acetate Carbonylation

“…This tautomer was therefore converted to 6,6Ј-bis(tert-butyldimethylsiloxy)-2,2Ј-bipyridine, which is easily hydrolysed after coordination to the rhodium centre to give the target complex [Rh(2)(CO) 2 ]SbF 6 . [44] A number of metal complexes containing bipyridine ligands with hydroxy substituents in various positions have been reported, for example 3,3Ј-and 4,4Ј-dihydroxy-2,2Ј-bipyridine [47,48] and also 6-hydroxy-2,2Ј-bipyridine; [49] but, to the best of our knowledge, [Rh(2)(CO) 2 ]SbF 6 is the first metal complex containing the 6,6Ј-dihydroxy-2,2Ј-bipyridine ligand.…”

A new ligand for the formation of a 3D structure by significant C–H⋯S hydrogen bonds and π–π interactions

“…There has been rapid development of multi-dimensional networks based primarily on linking metal centers with rigid bridging components such as 2,2 0 -and 4,4 0 -bipyridine [9][10][11][12], and some extended architectures or networks constructed from flexible bridging units have also been reported, although such examples are still comparatively rare.…”

“…min in an oil bath at 120°C, cooled to room temperature and then 3.65 g (53.61 mmol) imidazole, 6.01 g (53.61 mmol) t-KOBu, 2.96 g (6.71 mmol) 3,6-diiod-9-ethylcarbazole[12] and 18-crown-6 (litter) were added and heated to 140°C for 48 h, then the reaction mixture was heated to 160°C for 12 h, and cooled to room temperature. The residue was extracted with 200 mL of dichloromethane, washed three times with distilled water, and dried with anhydrous magnesium sulfate.…”