Silver-Dabco Coordination Networks with Distinct Carbaborane Anions: Investigating Ag路路路H鈥揃 and Ag路路路I鈥揃 Interactions

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• 作者：Lu铆s Cunha-Silva ; Michael J. Carr ; John D. Kennedy ; Michaele J. Hardie
• 刊名：Crystal Growth & Design
• 出版年：2013
• 出版时间：July 3, 2013
• 年：2013
• 卷：13
• 期：7
• 页码：3162-3170
• 全文大小：540K
• 年卷期：v.13,no.7(July 3, 2013)
• ISSN：1528-7505

文摘

A novel series of metal鈥搊rganic frameworks (MOFs) based on Ag(I) and the nitrogen-bridging ligand 1,4-diazabicyclo[2.2.2]octane (dabco) along with the incorporation of distinct carbaborane anions were synthesized and isolated as crystalline materials. Single-crystal X-ray diffraction analysis unveiled novel materials formulated as [Ag(dabco)][Cobdc] (1), [Ag(dabco)(PhCB₉H₉)] (2), [Ag(dabco)(PhCB₉H₈I)] (3), and [Ag(dabco)(PhCB₁₁H₅I₆)] (4), which were further characterized by Fourier-transform infrared spectroscopy and elemental analysis. Interestingly, despite the use of distinct carbaborane anions, all the materials feature one-dimensional (1D) coordination networks with most of the bulky anions, particularly all the phenyl-carbaborane anion [PhCB₉H₉]^{鈭?/sup>, [PhCB₉H₈I]鈭?/sup>, and [PhCB₁₁H₅I₆]鈭?/sup>, incorporated in the coordination networks through Ag路路路H鈥揃 coordinative interactions or Ag路路路I鈥揃 coordination bonds. However, the influence of the distinct carbaborane anions is clearly reflected in the coordination features of Ag(I) centers, since all of them are engaged in different combinations of interactions (coordination bonds Ag鈥揘 and Ag鈥揑 and both coordinative or electrostatic Ag路路路H鈥揃 interactions) and in the overall characteristics of the 1D coordination networks.}