Ionic liquid accelerates the crystallization of Zr-based metal–organic frameworks

Xinxin Sang, Jianling Zhang (), Junfeng Xiang, Jie Cui, Lirong Zheng, Jing Zhang, Zhonghua Wu, Zhihong Li, Guang Mo, Yuan Xu, Jinliang Song, Chengcheng Liu, Xiuniang Tan, Tian Luo, Bingxing Zhang and Buxing Han
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Xinxin Sang: Institute of Chemistry, Chinese Academy of Sciences
Jianling Zhang: Institute of Chemistry, Chinese Academy of Sciences
Junfeng Xiang: Institute of Chemistry, Chinese Academy of Sciences
Jie Cui: Institute of Chemistry, Chinese Academy of Sciences
Lirong Zheng: Institute of High Energy Physics, Chinese Academy of Sciences
Jing Zhang: Institute of High Energy Physics, Chinese Academy of Sciences
Zhonghua Wu: Institute of High Energy Physics, Chinese Academy of Sciences
Zhihong Li: Institute of High Energy Physics, Chinese Academy of Sciences
Guang Mo: Institute of High Energy Physics, Chinese Academy of Sciences
Yuan Xu: Institute of Chemistry, Chinese Academy of Sciences
Jinliang Song: Institute of Chemistry, Chinese Academy of Sciences
Chengcheng Liu: Institute of Chemistry, Chinese Academy of Sciences
Xiuniang Tan: Institute of Chemistry, Chinese Academy of Sciences
Tian Luo: Institute of Chemistry, Chinese Academy of Sciences
Bingxing Zhang: Institute of Chemistry, Chinese Academy of Sciences
Buxing Han: Institute of Chemistry, Chinese Academy of Sciences

Nature Communications, 2017, vol. 8, issue 1, 1-7

Abstract: Abstract The Zr-based metal–organic frameworks are generally prepared by solvothermal procedure. To overcome the slow kinetics of nucleation and crystallization of Zr-based metal–organic frameworks is of great interest and challenging. Here, we find that an ionic liquid as solvent can significantly accelerate the formation of Zr-based metal–organic frameworks at room temperature. For example, the reaction time is shortened to 0.5 h in 1-hexyl-3-methylimidazolium chloride for Zr-based metal–organic framework formation, while that in the conventional solvent N,N-dimethylformamide needs at least 120 h. The reaction mechanism was investigated in situ by 1H nuclear magnetic resonance, spectroscopy synchrotron small angle X-ray scattering and X-ray absorption fine structure. This rapid, low-energy, and facile route produces Zr-based metal–organic framework nanoparticles with small particle size, missing-linker defects and large surface area, which can be used as heterogeneous catalysts for Meerwein–Ponndorf–Verley reaction.

Date: 2017
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DOI: 10.1038/s41467-017-00226-y

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