Solvothermal Syntheses of [Ln(en)3(H2O)x(3-x
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- 作者：Dingxian Jia ; Qianxin Zhao ; Yong Zhang ; Jie Dai ; and Jinglin Zuo
- 刊名：Inorganic Chemistry
- 出版年：2005
- 出版时间：November 28, 2005
- 年：2005
- 卷：44
- 期：24
- 页码：8861 - 8867
- 全文大小：282K
- 年卷期：v.44,no.24(November 28, 2005)
- ISSN：1520-510X
文摘
New lanthanide thioantimonate(V) compounds, [Ln(en)3(H2O)x(
3-x-SbS4)] (en = ethylenediamine, Ln = La, x =0, Ia; Ln = Nd, x = 1, Ib) and [Ln(en)4]SbS4·0.5en (Ln = Eu, IIa; Dy, IIb; Yb, IIc), were synthesized under mildsolvothermal conditions by reacting Ln2O3, Sb, and S in en at 140 
C. These compounds were classified as twotypes according to the molecular structures. The crystal structure of type I (Ia and Ib) consists of one-dimensionalneutral [Ln(en)3(H2O)x(3-x-SbS4)]
(x = 0 or 1) chains, in which SbS43- anions act as tridentate or bidentatebridging ligands to interlink [Ln(en)3]3+ ions, while the crystal structure of type II (IIa, IIb, and IIc) contains isolated[Ln(en)4]3+ cations, tetrahedral SbS43- anions, and free en molecules. A systematic investigation of the crystalstructures of the five lanthanide compounds, as well as two reported compounds, clarifies the relationship betweenthe molecular structure and the entity of the lanthanide(III) series, such as the stability of the lanthanide(III)-encomplexes, the coordination number, and the ionic radii of the metals.
3-x-SbS4)] (en = ethylenediamine, Ln = La, x =0, Ia; Ln = Nd, x = 1, Ib) and [Ln(en)4]SbS4·0.5en (Ln = Eu, IIa; Dy, IIb; Yb, IIc), were synthesized under mildsolvothermal conditions by reacting Ln2O3, Sb, and S in en at 140 C. These compounds were classified as twotypes according to the molecular structures. The crystal structure of type I (Ia and Ib) consists of one-dimensionalneutral [Ln(en)3(H2O)x(3-x-SbS4)] (x = 0 or 1) chains, in which SbS43- anions act as tridentate or bidentatebridging ligands to interlink [Ln(en)3]3+ ions, while the crystal structure of type II (IIa, IIb, and IIc) contains isolated[Ln(en)4]3+ cations, tetrahedral SbS43- anions, and free en molecules. A systematic investigation of the crystalstructures of the five lanthanide compounds, as well as two reported compounds, clarifies the relationship betweenthe molecular structure and the entity of the lanthanide(III) series, such as the stability of the lanthanide(III)-encomplexes, the coordination number, and the ionic radii of the metals.