The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.15746-57-3, Name is Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II), molecular formula is C20H16Cl2N4Ru. In a Article£¬once mentioned of 15746-57-3, Recommanded Product: 15746-57-3
Ruthenium(II) complexes with the mixed ligands 2,2?-bipyridine and 4,4?-dialkyl ester-2,2?-bipyridine as pure red dopants for a single-layer electrophosphorescent device
The mixed-ligand polypyridine ruthenium(II) complexes, [Ru(bpy) 2(dmeb)]2+(PF6-)2 (Ru(dmeb)2+) and [Ru(bpy)2(dbeb)]2+(PF 6-)2 (Ru(dbeb)2+), where bpy is bipyridine, dmeb is 4,4?-dimethyl ester-2,2?-bipyridine, and dbeb is 4,4?-dibutyl ester-2,2?-bipyridine, are synthesized and characterized, and their spectroscopic, electrochemical, and electroluminescent properties are reported. Both Ru(II) complexes showed strong emission from the triplet metal-to-ligand charge-transfer excited state, red-shifted emission spectra (lambdamax = 642 nm), and good solubility in organic solvents compared to the frequently used tris(bipyridine) Ru(II) complexes. The electrochemical measurements for these Ru complexes showed reversible and quasi-reversible redox processes, implying a potential improvement in the stability of the electroluminescent device. The electrophosphorescent devices were fabricated by doping them in a polymer host using a simple solution spin-coating technique. For a single-layer device with the 1.0 wt % Ru(dbeb)2+-doped polymer blends of poly(vinylcarbazole) (PVK) and 2-tert-butylphenyl-5-biphenyl-1,3,4-oxadiazol (PBD) as the emitting layer and with the metal Ba as the cathode, an external quantum efficiency of 3.0%, a luminous efficiency of 2.4 cd/A, and a maximum brightness of 935 cd/m 2 are reached with an electroluminescence (EL) spectral peak at 640 nm and Commission Internationale de L’Eclairage chromaticity coordinates of x = 0.64 and y = 0.33, which were comparable with standard red color.
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.Recommanded Product: 15746-57-3, you can also check out more blogs about15746-57-3
Reference£º
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI