In 2019,Inorganic Chemistry included an article by Kalinke, Lucas H. G.; Cangussu, Danielle; Mon, Marta; Bruno, Rosaria; Tiburcio, Estefania; Lloret, Francesc; Armentano, Donatella; Pardo, Emilio; Ferrando-Soria, Jesus. Recommanded Product: 4755-77-5. The article was titled 《Metal-Organic Frameworks as Playgrounds for Reticulate Single-Molecule Magnets》. The information in the text is summarized as follows:
Achieving fine control on the structure of metal-organic frameworks (MOFs) is mandatory to obtain target phys. properties. Herein, the authors present how the combination of a metalloligand approach and a postsynthetic method is a suitable and highly useful synthetic strategy to success on this extremely difficult task. First, a novel oxamato-based tetranuclear Co(III) compound with a tetrahedron-shaped geometry was used, for the 1st time, as the metalloligand toward Ca(II) metal ions to lead to a diamagnetic CaII-CoIII three-dimensional (3D) MOF {Ca6(H2O)24[CoIII4(tpatox)4]}·44H2O (1), tpatox6- = N,N’,N”-tris(4-phenyl)aminetris(oxamate). In a 2nd stage single-crystal-to-single-crystal manner, the Ca(II) ions are replaced by Tb(III), Dy(III), Ho(III), and Er(III) to yield isostructural LnIII-CoIII [Ln = Tb 2, Dy 3, Ho 4, and Er 5] 3-dimensional MOFs. Direct-current magnetic properties for 2-5 show typical performances for the ground-state terms of the lanthanoid cations [7F6 (TbIII), 6H15/2 (DyIII), 5I8 (HoIII), and 4I15/2 (ErIII)]. Anal. of the χMT data indicates that the ground state is the lowest MJ value, i.e., MJ = 0 (2 and 4) and ±1/2 (3 and 5). Kramers’ ions (3 and 5) exhibit field-induced emergent frequency-dependent alternating-current magnetic susceptibility signals, which is indicative of the presence of slow magnetic relaxation typical of single-mol. magnets. The authors report the combined use of the metalloligand design strategy and postsynthetic methodologies to build up a family of isostructural metal-organic frameworks as playgrounds toward the controlled spatial organization of single-mol. magnets. The experimental process involved the reaction of Ethyl oxalyl monochloride(cas: 4755-77-5Recommanded Product: 4755-77-5)
Ethyl oxalyl monochloride(cas: 4755-77-5) belongs to acyl chlorides. In the laboratory, acyl chlorides are generally prepared by treating carboxylic acids with thionyl chloride (SOCl2). The reaction is catalyzed by dimethylformamide and other additives.Recommanded Product: 4755-77-5
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