Using ionic liquids (ILs) as linker precursors, the well‐known metal‐organic framework (MOF) UiO‐66 (Universitetet i Oslo) and the recently reported MOF hcp UiO‐66 (hexagonal closed packed) have been successfully synthesized and characterized. The advantage of the applied novel synthesis approach is an economically and environmentally benign work‐up procedure, due to the better solubility of the IL. Additionally, the reactivity of the terephthalate anions is increased compared to terephthalic acid, resulting in faster MOF formation with an increased amount of defects in the MOF structure. In order to explore to the influence of defects on the catalytic performance, the cyclisation of citronellal to isopulegol was employed as test reaction. The activity of hcp UiO‐66 and fcc UiO‐66 (face centered cubic) is improved compared to other MOF or zeolite based catalysts, while the selectivity is similar.

中文翻译：

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由离子液体合成的UiO- 66和hcp UiO- 66催化剂作为连接子前体

使用离子液体（ILs）作为连接剂前体，已成功合成和表征了著名的金属有机骨架（MOF）UiO-66（Universityet i Oslo）和最近报道的MOF hcp UiO-66（六方密排）。由于IL的更好溶解性，因此应用新颖的合成方法的优势是经济和环境友好的后处理程序。另外，与对苯二甲酸相比，对苯二甲酸阴离子的反应性增加，导致更快的MOF形成，同时MOF结构中的缺陷数量增加。为了探索缺陷对催化性能的影响，将香茅醛环化为异胡薄荷醇作为测试反应。的活性的hcp UIO-66和与其他MOF或沸石基催化剂相比，fcc UiO-66（面心立方）得到改进，而选择性相似。