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Bahasa Indonesia; 日本語 ... Pages in category "Bipyridines" The following 13 pages are in this category, out of 13 total. ... About Wikipedia; Disclaimers ...
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 ...
Bahasa Indonesia; Italiano; Magyar ... Unsymmetrically substituted 2,2'-bipyridines can be prepared by cross coupling reaction of 2 ... Wikipedia® is a registered ...
4,4′-Bipyridine was first obtained in 1868 by the Scottish chemist Thomas Anderson via heating pyridine with sodium metal. [1] However, Anderson's empirical formula for 4,4′-bipyridine was incorrect. [2]
A well known triazine is melamine (2,4,6-triamino-1,3,5-triazine). With three amino substituents, melamine is a precursor to commercial resins. Guanamines are closely related to melamine, except with one amino substituent replaced by an organic group.
The bis-triazinyl bipyridines (BTBPs) are a class of chemical compounds which are tetradentate ligands similar in shape to quaterpyridine. The BTBPs are made by the reaction of hydrazine and a 1,2-diketone (such as hexane-3,4-dione ) with 6,6'-di cyano -2,2'-bipyridine.
Pyridine supports a series of radical reactions, which is used in its dimerization to bipyridines. Radical dimerization of pyridine with elemental sodium or Raney nickel selectively yields 4,4'-bipyridine , [ 98 ] or 2,2'-bipyridine , [ 99 ] which are important precursor reagents in the chemical industry.
Polypyridine complexes are coordination complexes containing polypyridine ligands, such as 2,2'-bipyridine, 1,10-phenanthroline, or 2,2';6'2"-terpyridine.. Polypyridines are multidentate ligands that confer characteristic properties to the metal complexes that they form.