Product Details of 60804-74-2. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Tris(2,2′-bipyridine)ruthenium bis(hexafluorophosphate), is researched, Molecular C30H24F12N6P2Ru, CAS is 60804-74-2, about Tuning the electrochemiluminescent properties of iridium complexes of N-heterocyclic carbene ligands. Author is Quan, Linh M.; Stringer, Bradley D.; Haghighatbin, Mohammad A.; Agugiaro, Johnny; Barbante, Gregory J.; Wilson, David J. D.; Hogan, Conor F.; Barnard, Peter J..
A series of five heteroleptic Ir(III) complexes of the general form Ir(dfppy)2(CĈ) have been prepared (where dfppy represents 2-(2,4-difluorophenyl)pyridine and CĈ represents a bidentate cyclometalated Ph substituted imidazolylidene ligand). The cyclometalated Ph ring of the imidazolylidene ligand was either unsubstituted or substituted with electron donating (OMe and Me) or electron withdrawing (Cl and F) groups in the 2 and 4 positions. The synthesized Ir(III) complexes have been characterized by elemental anal., NMR spectroscopy, cyclic voltammetry and electronic absorption and emission spectroscopy. The mol. structures for four Ir(III) complexes were determined by single crystal X-ray diffraction. Each of the Ir(III) complexes exhibited intense photoluminescence in acetonitrile solution at room temperature with quantum yields (ΦPL) ranging from 58% to 86%. Cyclic voltammetry experiments revealed one oxidation process (formally ascribed to the metal center), and two ligand-based reductions for each complex. Complexes 1-5 gave moderate to intense annihilation and co-reactant electrochemiluminescence (ECL). Consideration of the electrochem., spectroscopic and theor. investigations provide insights into the electrochemiluminescence behavior.
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Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI