Synthesizing 2D and 3D Selenidostannates in Ionic Liquids: The Synergistic Structure-Directing Effects of Ionic Liquids and Metal-Amine Complexes

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• 作者：Cheng-Feng Du ; Nan-Nan Shen ; Dr. Jian-Rong Li ; Min-Ting Hao ; Zi Wang and Prof.Dr. Xiao-Ying Huang
• 刊名：Chemistry – An Asian Journal
• 出版年：2016
• 出版时间：May 20, 2016
• 年：2016
• 卷：11
• 期：10
• 页码：1555-1564
• 全文大小：3326K
• ISSN：1861-471X

文摘

Presented are the ionothermal syntheses, characterizations, and properties of a series of two- and three-dimensional selenidostannate compounds synergistically directed by metal–amine complex (MAC) cations and ionic liquids (ILs) of [Bmmim]Cl (Bmmim=1-butyl-2,3-dimethylimidazolium). Four selenidostannates, namely, 2D-(Bmmim)₃[Ni(en)₃]₂[Sn₉Se₂₁]Cl (1, en=ethylenediamine), 2D-(Bmmim)₈[Ni₂(teta)₂(μ-teta)]Sn₁₈Se₄₂ (2, teta=triethylenetetramine), 2D-(Bmmim)₄[Ni(tepa)Cl]₂[Ni(tepa)Sn₁₂Se₂₈] (3, tepa=tetraethylenepentamine), and 3D-(Bmmim)₂[Ni(1,2-pda)₃]Sn₈Se₁₈ (4, 1,2-pda=1,2-diaminopropane), were obtained. Single-crystal X-ray diffraction analyses revealed that compounds 1 and 2 possess a lamellar anionic [Sn₃Se₇]_n²ⁿ⁻ structure comprising distinct eight-membered ring units, whereas 3 features a MAC-decorated anionic [Ni(tepa)Sn₁₂Se₂₈]_n⁶ⁿ⁻ layered structure. In contrast to 1–3, compound 4 exhibits a 3D open framework of anionic [Sn₄Se₉]_n²ⁿ⁻. The structural variation from 1 to 4 clearly indicates that on the basis of the synergistic structure-directing ability of the MACs and ILs, variation of the organic polyamine ligand has a significant impact on the formation of selenidostannates.