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A Series of Lanthanide Selenidogermanates: The First Coexistence of Three Types of Selenidogermanate Units in the Same Architecture
Inorganic Chemistry ( IF 4.6 ) Pub Date : 2018-01-10 00:00:00 , DOI: 10.1021/acs.inorgchem.7b02659
Shimei Tang 1 , Jian Zhou 1 , Hua-Hong Zou 2 , Xing Liu 1 , Li Zhang 1
Affiliation  

A series of lanthanide selenidogermanates, (H2peha)[Ln2(μ-OH)2(tepa)2Cl2]{[Ln2(μ-OH)2(tepa)2Cl]2(μ-Ge2Se6)}[Ge2Se6]Cl2 [Ln = Y (1a) and Er (1b); peha = pentaethylenexamine, tepa = tetraethylenepentamine], [Sm2(μ-OH)2(tepa)2(μ-Ge2Se6)]n (2), [Ho2(μ-OH)2(tepa)2(μ-Ge2Se6)]n (3), and [Ce4(tepa)4(μ-GeSe4)(μ-GeSe5)(μ-Ge2Se6)]n (4), were made under solvothermal conditions. Compounds 1a and 1b contain a protonated H2peha2+ ion, the complex cation [Ln2(μ-OH)2(tepa)2Cl2]2+, a [Ge2Se6]4– anion, free Cl ions, and a {[Ln2(μ-OH)2(tepa)2Cl]2(μ-Ge2Se6)}2+ cation constructed by two unsaturated [Ln2(μ-OH)2(tepa)2Cl]3+ groups connecting via the trans terminal Se atoms of the [Ge2Se6]4– anion, which provides the first example of an organic decorated lanthanide selenidogermanate cation. Both compounds 2 and 3 contain one-dimensional chains [Ln2(μ-OH)2(tepa)2(μ-Ge2Se6)]n constructed by a combination of unsaturated complex cations [Ln2(μ-OH)2(tepa)2]4+ and [Ge2Se6]4– anions, but their stacking patterns of neutral chains are different. Compound 4 contains one-dimensional chain [Ce4(tepa)4(μ-GeSe4)(μ-GeSe5)(μ-Ge2Se6)]n, where three different selenidogermanate units acting as bridging ligands connect unsaturated [Ce(tepa)]3+ ions. Compound 4 represents the first example of the coexistence of three different selenidogermanate anions in the same architecture. Their optical properties are studied, and the magnetic properties of compounds 1b and 24 are also investigated.

中文翻译:

镧系硒代锗酸盐系列:同一体系中三种硒代锗酸盐单元的第一种共存

一系列镧系元素selenidogermanates的,(H 2 PEHA)[LN 2(μ-OH)2(TEPA)22 ] {[LN 2(μ-OH)2(TEPA)2 CL] 2(μ-戈26)} [Ge 2 Se 6 ] Cl 2 [Ln = Y(1a)和Er(1b);PEHA = pentaethylenexamine,TEPA四亚乙基五=],[钐2(μ-OH)2(TEPA)2(μ-戈26)] Ñ2),[HO2(μ-OH)2(TEPA)2(μ-戈26)] Ñ3),和[CE 4(TEPA)4(μ-GESE 4)(μ-GESE 5)(μ-戈2 Se 6)] n4),是在溶剂热条件下制得的。化合物1a1b包含质子化的H 2 peha 2+离子,复合阳离子[Ln 2(μ-OH)2(tepa)2 Cl 2 ] 2 +,[Ge26 ] 4-阴离子,游离氯-离子和{[LN 2(μ-OH)2(TEPA)2 CL] 2(μ-戈26)} 2+由两个不饱和[LN构造阳离子通过[Ge 2 Se 6 ] 4–阴离子的反式Se端连接的2(μ-OH)2(tepa)2 Cl] 3+基团提供了有机修饰的镧系元素硒代锗酸根阳离子的第一个实例。化合物23包含一维链[LN 2(μ-OH)2(TEPA)2(μ-戈26)] ñ由不饱和的复杂的阳离子的组合构成[LN 2(μ-OH)2(TEPA)2 ] 4+和[Ge 2 Se 6 ] 4–阴离子,但它们中性链的堆积方式不同。化合物4包含一维链[CE 4(TEPA)4(μ-GESE 4)(μ-GESE 5)(μ-戈26)] Ñ,其中三个作为桥联配体的硒酸锗精单元连接不饱和[Ce(tepa)] 3+离子。化合物4代表在同一​​结构中三种不同硒亚锗酸根阴离子共存的第一个例子。其光学性质进行了研究,并且化合物的磁特性图1b2 - 4也被研究了。
更新日期:2018-01-10
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