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Other name: 2-(2-Pyridyl)pyridine; 2,2’-Bipyridyl, 2,2’-Dipyridyl
Appearance: off-white crystal powder
Purity: 98%min.; 99%min.
Package: 100g, 1Kg, 5Kg, 25Kg
2,2'-Bipyridine is a chelating ligand that forms complexes with most transition metal ions. Bipyridine complexes absorb intensely in the visible part of the spectrum. The electronic transitions are attributed to metal-to-ligand charge transfer (MLCT). In the "tris(bipy) complexes" three bipyridine molecules coordinate to a metal ion, written as [M(bipy)3]n+ (M = metal ion; Cr, Fe, Co, Ru, Rh and so on; bipy = 2,2′-bipyridine). These complexes have six-coordinated, octahedral structures and two enantiomer. Many of these complexes have distinctive optical properties and some are of interest for analysis. 2,2'-Bipyridine is also key intermediate of a contact herbicide, Diquat.