Noncovalently Connected Framework Assembled from Unusual Octamolybdate-Based Inorganic Chain and Organic Cation

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• 作者：Zhangang Han ; Yuanzhe Gao ; Changwen Hu
• 刊名：Crystal Growth & Design
• 出版年：2008
• 出版时间：April 2008
• 年：2008
• 卷：8
• 期：4
• 页码：1261 - 1264
• 全文大小：704K
• 年卷期：v.8,no.4(April 2008)
• ISSN：1528-7505

文摘

An octamolybdate-containing noncovalently assembled framework with the formula (Hcpy)₃[Ag(β-Mo₈O₂₆)] (1) (cpy = 4-(5-chloropyridin-2-yl)pyridine) is synthesized and characterized. Compound 1 comprises a three-dimensional supramolecular network constructed from one-dimensional {[Ag(β-Mo₈O₂₆)]³⁻}_∞ anionic chains and protonated cpy cationic layers. The inorganic chain only constructed by the building block [β-Mo₈O₂₆]⁴⁻ linked only via a single Ag⁺ ion is unusual. The extensive and efficient face-to-face π···π interaction in these aromatic N-heterocyclic systems is facilitated by the neighboring electron-withdrawing chlorine atom. Anionic shape and size also play an important role in the resulting supramolecular arrangement.