Tuning the Supramolecular Structure through Variation of the Ligand Geometry and Metal Substituents鈥揇iorganotin Macrocycles and Coordination Polymers Derived from cis- and trans-1,2-, 1,

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• 作者：Ir谩n Fernando Hern谩ndez-Ahuactzi ; Jorge Cruz-Huerta ; Hugo Tlahuext ; Victor Barba ; Jorge Guerrero-Alvarez ; Herbert H枚pfl
• 刊名：Crystal Growth & Design
• 出版年：2015
• 出版时间：February 4, 2015
• 年：2015
• 卷：15
• 期：2
• 页码：829-847
• 全文大小：892K
• ISSN：1528-7505

文摘

cis- and trans-1,2-chdcaH₂, 1,3-chdcaH₂, and 1,4-chdcaH₂ (chdcaH₂ = cyclohexanedicarboxylic acid) as well as cis,cis-1,3,5-chtcaH₃ (chtcaH₃ = cyclohexanetricarboxylic acid) have been treated with dimethyl- and di-n-butyltin reagents, and for the case of 1,4-chdcaH₂ additionally with di-tert-butyltin dichloride, to determine whether macrocyclic or polymeric diorganotin dicarboxylates are formed dependent of the spatial orientation of the coordinating ligand functions and the organic substituents at the metal atom and to analyze conformational and topological variations in the resulting supramolecular aggregates. The single-crystal X-ray diffraction studies showed that besides the ligand geometry the substituents at the metal center are key elements for the formation of either monomeric, cyclo-oligomeric, or polymeric assemblies. Two of the compounds characterized by X-ray diffraction analysis exhibited macrocyclic ring structures, [{Me₂Sn(cis-e,a-1,4-chdca)}₂] and [{nBu₂Sn(cis-e,a-1,4-chdca)}₄]. For most of the remaining compounds, one-dimensional polymeric solid-state structures of composition [{R₂Sn(1,x-chdca)(H₂O)_y}_n] (R = Me, nBu, tBu; x = 2, 3, 4; y = 0, 1) were observed, which had varying topologies, and for the case of the Me₂Sn and nBu₂Sn derivatives were further linked to two- or three-dimensional supramolecular architectures, either through intermolecular Sn路路路O or O鈥揌路路路O hydrogen-bonding interactions.