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在Na4PW11O39Fe(Ⅲ)(H2O)·11H2O,K4Fe(CN)6和Bu4NBr的混合水溶液中,合成了一个新的类普鲁士蓝杂多化合物[Bu4N]28[(PW11O39FeⅢ)6FeⅡ (CN)6]·13H2O,并通过元素分析、差热-热重、红外光谱、紫外光谱等分析手段对其进行了表征.分析结果表明,在该化合物中,PW11O39Fe(Ⅲ)(H2O)4-的配位水分子被氰基取代,形成以FeII为中心的类似于普鲁士蓝的八面体结构单元FeII-[CN-FeⅢPW11O39]6.磁性研究表明,该化合物为反铁磁性物质,在3.44K以上,其表现为铁磁性,磁化率随温度的下降而升高,居里常数为4.469cm3Kmol-1,外斯常数为-0.05(3)K,g因子为2.02.在3.44K以下,其表现为反铁磁性,磁性随温度的下降而降低.
A novel Prussian blue heteropoly compound [Bu4N] 28 [(PW11O39FeⅢ) 6FeⅡ (CN) 6] · 13H2O was synthesized in a mixed aqueous solution of Na4PW11O39Fe (Ⅲ) (H2O) · 11H2O, K4Fe (CN) 6 and Bu4NBr , And characterized by elemental analysis, DTA-TG, FT-IR and UV spectroscopy.The results show that the coordination water of PW11O39Fe (Ⅲ) (H2O) 4- Cyano group to form an FeII-like octahedral unit FeII- [CN-FeⅢPW11O39] 6 which is similar to Prussian blue.6 Magnetic studies show that the compound is an antiferromagnetic material, and exhibits a ferromagnetism above 3.44K , The magnetic susceptibility increases with decreasing temperature, the Curie constant is 4.469cm3Kmol-1, the Oss constant is -0.05 (3) K, and the g-factor is 2.02. Below 3.44K, it exhibits antiferromagnetic and magnetic properties Lower temperature decreases.