Self-assembled three-dimensional molecule-based magnet composed of a trinuclear manganese unit and octacyanidotungstate was written by Komine, Masaya;Nakabayashi, Koji;Stefanczyk, Olaf;Ohkoshi, Shin-ichi. And the article was included in Inorganica Chimica Acta in 2019.Quality Control of Pyridin-4-ol This article mentions the following:
The authors report a three-dimensional mol.-based magnet, [MnII3(4-pyridone)6][WV(CN)8]2·2H2O (1). This compound was synthesized in 1-pot by evaporation of an aqueous solution in which MnCl2·4H2O, 4-hydroxypyridine and Cs3[W(CN)8]·2H2O were dissolved. The evaporation process causes self-assembly of the building blocks, forming a three-dimensional network structure with unique trimanganese units of [Mn3(4-pyridone)6]6+ bridged by [W(CN)8]3- anions. This compound has two types of short intermetallic bridges, which can exhibit two magnetic interaction pathways (MnII-O-MnII and MnII-NC-WV). The magnetic interactions between WV (S = 1/2) and MnII (S = 5/2) and between MnII and MnII are antiferromagnetic with exchange coupling constants of JMnW = -3.9 cm-1 and JMnMn = -5.9 cm-1, resp. The present compound exhibits ferrimagnetism with spontaneous magnetization <20 K. In the experiment, the researchers used many compounds, for example, Pyridin-4-ol (cas: 626-64-2Quality Control of Pyridin-4-ol).
Pyridin-4-ol (cas: 626-64-2) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Reduced pyridines, namely tetrahydropyridines, dihydropyridines and piperidines, are found in numerous natural and synthetic compounds. The synthesis and reactivity of these compounds have often been driven by the fact many of these compounds have interesting and unique pharmacological properties. Quality Control of Pyridin-4-ol