Influence of Water Content on the Self-Assembly of Metal-Organic Frameworks Based on Pyridine-3,5-dicarboxylate
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- 作者：Yi-Long Lu ; Jing-Yun Wu ; Ming-Che Chan ; Sheng-Ming Huang ; Chia-Shiang Lin ; Te-Wei Chiu ; Yen-Hsiang Liu ; Yuh-Sheng Wen ; Chuen-Her Ueng ; Tsung-Mei Chin ; Chen-Hsiung Hung ; and Kuang-Lieh Lu
- 刊名：Inorganic Chemistry
- 出版年：2006
- 出版时间：March 20, 2006
- 年：2006
- 卷：45
- 期：6
- 页码：2430 - 2437
- 全文大小：478K
- 年卷期：v.45,no.6(March 20, 2006)
- ISSN：1520-510X
文摘
A 0D discrete molecule [Co(3,5-pdc)(H2O)5]·2H2O (1) was obtained in quantitative yield from the reaction of CoCl2·6H2O and pyridine-3,5-dicarboxylate (3,5-pdc) in pure water solvent at ambient temperature. While a 1D zigzagchain species, [{Co(3,5-pdc)(H2O)4}·H2O]n (2), was produced in a water-rich environment, a 2D layer compound,[Co(3,5-pdc)(H2O)2]n (3), with a 63 topology was generated under a water-reduced condition and a 2D sheet structure,[{Cu(3,5-pdc)(py)2}·H2O·EtOH]n (4), was formed under a water-poor condition. Compounds 1, 2, and 4 werecharacterized by single-crystal X-ray diffraction analysis. The 1D zigzag chain 2 shows a recoverable collapsingproperty. Compound 4 adopts a 2D sheet structure with a 4·82 topology, observed for the first time for the 3,5-pdc-related metal-organic frameworks. Water content was found to be an important factor in determining thetopologies of the products in the self-assembly of divalent metal ions (Co2+, Cu2+) and pyridine-3,5-dicarboxylateunder mild conditions.