Two Solvent-Dependent Zinc(II) Supramolecular Isomers: Rare kgd and Lonsdaleite Network Topologies Based on a Tripodal Flexible Ligand

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• 作者：Peipei Cui ; Junling Wu ; Xiaoliang Zhao ; Di Sun ; Liangliang Zhang ; Jie Guo ; Daofeng Sun
• 刊名：Crystal Growth & Design
• 出版年：2011
• 出版时间：December 7, 2011
• 年：2011
• 卷：11
• 期：12
• 页码：5182-5187
• 全文大小：1055K
• 年卷期：v.11,no.12(December 7, 2011)
• ISSN：1528-7505

文摘

Two Zn(II) supramolecular isomeric metal鈥搊rganic frameworks (MOFs) based on well-designed tripodal tris(2-carboxyethyl)isocyanuric acid (H₃tci), formulated as [(Me₂NH₂)Zn(tci)路0.5DMF]_n (1) and [(Me₂NH₂)Zn(tci)路2DMF]_n (2) (Me₂NH₂ = protonated dimethylamine, DMF = N,N-dimethylformamide) have been solvothermally synthesized and characterized. Compounds 1 and 2 are supramolecular isomers controlled by solvent systems and exhibit a structural progression from a rare two-dimensional kgd sheet to a three-dimensional framework with unusual Lonsdaleite (lon) topology. The structural dissimilarity between them was dependent on the coordination environments of the Zn(II) ion and linking modes of the tci ligand influenced by solvent systems. The photoluminescence behaviors of 1 and 2 are also discussed.