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4,4′-Bipyridine (abbreviated to 4,4′-bipy or 4,4′-bpy) is an organic compound with the formula (C 5 H 4 N) 2. It is one of several isomers of bipyridine. It is a colorless solid that is soluble in organic solvents. is mainly used as a precursor to N,N′-dimethyl-4,4′-bipyridinium [(C 5 H 4 NCH 3) 2] 2+, known as paraquat.
Bipyridines are a family of organic compounds with the formula (C 5 H 4 N) 2, consisting of two pyridyl (C 5 H 4 N) rings. Pyridine is an aromatic nitrogen-containing heterocycle. The bipyridines are all colourless solids, which are soluble in organic solvents and slightly soluble in water. Bipyridines, especially the 4,4' isomer, are mainly of ...
Paraquat (trivial name; / ˈ p ær ə k w ɒ t /), or N,N′-dimethyl-4,4′-bipyridinium dichloride (systematic name), also known as methyl viologen, is a toxic organic compound with the chemical formula [(C 6 H 7 N) 2]Cl 2. It is classified as a viologen, a family of redox-active heterocycles of similar structure. [5]
Pyridine-borane (C 5 H 5 NBH 3, melting point 10–11 °C) is a mild reducing agent. structure of the Crabtree's catalyst. Transition metal pyridine complexes are numerous. [108] [109] Typical octahedral complexes have the stoichiometry MCl 2 (py) 4 and MCl 3 (py) 3. Octahedral homoleptic complexes of the type M(py) + 6 are rare or tend to ...
They reported MOF of composition {[Cd(4,4 ′-bpy) 2 (H 2 O) 2] • (NO 3) 2 • 4H 2 O} which was obtained by treating linear bridging ligand 4,4 ′-bipyridine (bpy) with Cd(NO 3) 2. The Cd(II) centers in this MOF possess a distorted octahedral geometry having four pyridines in the equatorial positions, and two water molecules in the axial ...
2,2′-Bipyridine (bipy or bpy, pronounced / ˈ b ɪ p iː /) is an organic compound with the formula (C 5 H 4 N) 2. This colorless solid is an important isomer of the bipyridine family. It is a bidentate chelating ligand , forming complexes with many transition metals .
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3 RCH 2 OH + 2 CrO 3 (pyridine) 2 → 3 RCHO + 3 H 2 O + Cr 2 O 3 + 4 pyridine. The reagent is typically used in a sixfold excess. Methylene chloride is the typical solvent, with the solubility of 12.5 g/100 ml. The application of this reagent to oxidations was discovered by G. I. Poos, G. E. Arth, R. E. Beyler and L.H. Sarett in 1953.