The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 4,4-Dipyridyl Disulfide( cas:2645-22-9 ) is researched.Reference of 4,4-Dipyridyl Disulfide.Kanno, Takefumi; Nakabayashi, Koji; Imoto, Kenta; Ohkoshi, Shin-ichi published the article 《Manganese-Octacyanidoniobate-Based Ferrimagnet Possessing Bridging Ligands with Disulfide Bonds》 about this compound( cas:2645-22-9 ) in European Journal of Inorganic Chemistry. Keywords: manganese octacyanidoniobate ferrimagnet preparation crystal mol structure; cyanide bridging disulfide bond manganese octacyanidoniobate preparation. Let’s learn more about this compound (cas:2645-22-9).
Authors synthesized a cyanido-bridged Mn-Nb metal assembly possessing large-sized bridging ligands with disulfide bonds, [Mn(dpds)2]2[Nb(CN)8]·6H2O (MnNb, dpds: 4,4′-dipyridyl disulfide). MnNb has a three-dimensional coordination framework in which the Mn and Nb sites are bridged by cyanides, while the Mn sites are combined by dpds ligands. The two crystallog. independent dpds ligands are bent around the disulfide bond with large C(pyridine)-S-S-C(pyridine) dihedral angles of 105.4(5)° and 102.2(5)°, resp. For mol.-based magnets, dpds is a relatively large bridging ligand, but it is compatible with the limited space of the cyanido-bridged Mn-Nb coordination framework due to the bent structure. Addnl., antiferromagnetic coupling in MnNb of -13 cm-1 between MnII (S = 5/2, g = 2) and NbIV (S = 1/2, g = 2) induces ferrimagnetism with a critical temperature of 46 K.
In addition to the literature in the link below, there is a lot of literature about this compound(4,4-Dipyridyl Disulfide)Reference of 4,4-Dipyridyl Disulfide, illustrating the importance and wide applicability of this compound(2645-22-9).
Reference:
Bromide – Wikipedia,
bromide – Wiktionary