The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone( cas:86404-63-9 ) is researched.Recommanded Product: 86404-63-9.Zhang, Lei; Ling, Yun; Hu, Ai-Xi; Yao, Ting-Ting; Li, Jing published the article 《Four novel Co(II) and Mn(II) coordination polymers with triazolyl derivate: Syntheses, crystal structures and magnetic properties》 about this compound( cas:86404-63-9 ) in Inorganica Chimica Acta. Keywords: manganese cobalt fluorophenyltriazolylethanone azido dicyanamide polymeric preparation antiferromagnetic ferromagnetic; crystal structure manganese cobalt fluorophenyltriazolylethanone azido dicyanamide coordination polymer. Let’s learn more about this compound (cas:86404-63-9).
Four novel coordination polymers, 1-dimensional chains [M(PTE)2(N3)2]n (M = Mn for 1 and Co for 2), and two-dimensional layers [M(PTE)2(dca)2]n (M = Mn for 3 and Co for 4) (PTE = 1-(2,4-difluorophenyl-2-(1H-1,2,4-triazol-1-yl)ethanone), dca = dicyanamide anion, N(CN)2 -), were synthesized under mild ambient conditions and structurally characterized by single crystal x-ray diffraction. In all four crystal structures, the metal atoms adopt octahedral coordination geometry with six N atoms from two monodentate PTE ligands and four azido (or dca) bridging ligands. The crystal structures of 1 and 2 are isostructural 1-dimensional polymeric chains, alternatively linked by double end-on and double end-to-end azido bridges. However, the bent dca ligands as bidentate μ2-1,5 bridging ligands interlink the octahedral metal units to lead to 2-dimensional (4,4) grid networks in 3 and 4. Temperature-dependent magnetic measurements in 2-300 K were performed for these four polymers, and suggest alternative ferro- and antiferromagnetic couplings for end-on and end-to-end azido bridges in 1, and the dominant ferromagnetic coupling in 2, resp. Both polymers 3 and 4 show weak antiferromagnetic exchanges through the μ2-1,5-dca bridges. The effects of auxiliary coligands on the structure and the nature of these magnetic exchanges are discussed in the light of the crystal structures.
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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics