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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >A series of new lanthanoid thioarsenates: insights into the influence of lanthanide contraction on the formation of new lanthanoid thioarsenates
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A series of new lanthanoid thioarsenates: insights into the influence of lanthanide contraction on the formation of new lanthanoid thioarsenates

机译:一系列新的镧系元素硫代砷酸盐:洞悉镧系元素收缩对新的镧系元素硫代砷酸盐的形成的影响

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A series of new lanthanoid thioarsenates [Ln(teta)(mu-eta(1):eta(2):eta(1)-(AsS3)-S-III)](n) {Ln = Ce (Ia), Pr (Ib), Nd (Ic), and Sm (Id); teta = triethylenetetramine} and [Ln(teta)(en)(mu-eta(1):eta(1):eta(1)-As(V)S-4)](n) {Ln = La (IIa), Ce (IIb), Pr (IIb), and Nd (IIc); en = ethylenediamine} were prepared by the solvothermal reaction of K3AsO3, S, LnCl(3) and organic amines and structurally characterized. Compounds Ia-d crystallise in the orthorhombic space group Aba2 and display 1-D neutral chains [Ln(teta)(mu-eta(1):eta(2):eta(1)-(AsS3)-S-III)](n), which represent the first examples of 1-D organic hybrid lanthanoid sulfides built up from trigonal-pyramidal [(AsS3)-S-III](3-) acting as tetradentate bridging ligands to interlink [Ln(teta)](3+) ions, while compounds crystallise in the orthorhombic space group P2(1)2(1)2(1) and consist of other 1-D neutral chains [Ln(teta)(en)(mu-eta(1):eta(1):eta(1)-(AsS4)-S-V)](n), which are built up from the linkages of the tetrahedral [(AsS4)-S-V](3-) ion and the [Ln(teta)(en)](3+) ion. To learn more about the influence of lanthanide contraction on the formation of lanthanoid thioarsenates, three organic hybrid lanthanoid thioarsenates [Ln(teta)(en)(AsS4)-S-V] [Ln = Dy (IIIa), Ho (IIIb), and Tm (IIIc)] with the neutral molecular structure type in the monoclinic centrosymmetric space group P2(1)/c are also presented. Their optical and magnetic properties have been investigated, and density functional theory calculations of Ia and IIa have also been performed
机译:一系列新的镧系元素硫代砷酸盐[Ln(teta)(mu-eta(1):eta(2):eta(1)-(AsS3)-S-III)](n){Ln = Ce(Ia),Pr (Ib),Nd(Ic)和Sm(Id); teta =三亚乙基四胺}和[Ln(teta)(en)(mu-eta(1):eta(1):eta(1)-As(V)S-4)](n){Ln = La(IIa) ,Ce(IIb),Pr(IIb)和Nd(IIc);通过K3AsO3,S,LnCl(3)与有机胺的溶剂热反应制备并进行结构表征。化合物Ia-d在正交空间群Aba2中结晶并显示1-D中性链[Ln(teta)(mu-eta(1):eta(2):eta(1)-(AsS3)-S-III) (n),代表由三角金字塔形[(AsS3)-S-III](3-)构成的四维桥联配体以互连[Ln(teta)]( 3+)离子,而化合物在正交空间群P2(1)2(1)2(1)中结晶,并由其他1-D中性链[Ln(teta)(en)(mu-eta(1): eta(1):eta(1)-(AsS4)-SV)](n),它们是由四面体[(AsS4)-SV](3-)离子与[Ln(teta) (en)](3+)离子。要了解有关镧系元素收缩对镧系元素硫代砷酸盐形成的影响的更多信息,三种有机杂合镧系元素硫代砷酸盐[Ln(teta)(en)(AsS4)-SV] [Ln = Dy(IIIa),Ho(IIIb)和Tm (IIIc)]还给出了单斜向中心对称空间群P2(1)/ c中具有中性分子结构类型的分子。研究了它们的光学和磁性,并进行了Ia和IIa的密度泛函理论计算

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