水热合成、两种新型混合金属一价铜亚硫酸盐的晶体结构和磁性。
Hydrothermal syntheses, crystal structures and magnetic properties of two new mixed metal copper(I) sulfites.
机构信息
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, PR China.
出版信息
Dalton Trans. 2010 Jan 7(1):107-12. doi: 10.1039/b916465k. Epub 2009 Nov 2.
Two new examples of mixed metal copper(I) sulfites, namely, Na3Mn2Cu(SO3)4(H2O)5 (1) and NaMn4Cu(SO3)5(H2O)3 (2), have been synthesized and structurally characterized. The 1D structure of 1 is built from a chain of [Mn2Cu(SO3)4]3- bridged by Na+ ions whereas the structure of 2 features a complicated 3D framework in which Mn8O36 octanuclear clusters are bridged by sulfite anions and copper(I) ions into a 3D [CuMn4(SO3)5(H2O)3]2- network. The eight-coordinated sodium(I) ions are located at the cavities of the 3D structure. In both compounds, the oxygen atoms of the sulfite anion are bonded to Mn(II) ions whereas the sulfur atom is coordinated to the Cu+ ion. Magnetic measurements indicate that there exists antiferromagnetic interactions between Mn(II) centers in both compounds.
两种新的混合金属一价铜亚硫酸盐，即 Na3Mn2Cu(SO3)4(H2O)5（1）和 NaMn4Cu(SO3)5(H2O)3（2），已经被合成并进行了结构表征。1 的 1D 结构由通过 Na+离子桥接的[Mn2Cu(SO3)4]3-链组成，而 2 的结构则具有复杂的 3D 骨架，其中 Mn8O36 八核簇通过亚硫酸根阴离子和一价铜离子桥接形成 3D [CuMn4(SO3)5(H2O)3]2-网络。八配位的钠离子位于 3D 结构的空腔中。在这两种化合物中，亚硫酸根阴离子的氧原子与 Mn(II)离子键合，而硫原子与 Cu+离子配位。磁性测量表明，这两种化合物中的 Mn(II)中心之间存在反铁磁相互作用。
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