Reversible pressure-induced amorphization of a zeolitic imidazolate framework (ZIF-4)
Reversible pressure-induced amorphization of a zeolitic imidazolate framework (ZIF-4)
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DOI：
10.1039/c1cc11985k
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发表时间：
2011-01-01
影响因子：
4.9
通讯作者：
Cheetham, Anthony K.
中科院分区：
文献类型：
--
作者：
Bennett, Thomas D.;Simoncic, Petra;Cheetham, Anthony K.
本文报道了咪唑骨架分子筛（ZIF-4，[Zn（Im）（2）]）在压力作用下的可逆非晶化。这与孔占有率无关地发生，并且当溶剂分子存在于孔中时通过新型高压相（ZIF-4-I）发生。对于ZIF-4和ZIF-4-I两者，还观察到在框架抽空时体积模量的显著降低。
We report the reversible pressure-induced amorphization of a zeolitic imidazolate framework (ZIF-4, [Zn(Im)(2)]). This occurs irrespective of pore occupancy and takes place via a novel high pressure phase (ZIF-4-I) when solvent molecules are present in the pores. A significant reduction in bulk modulus upon framework evacuation is also observed for both ZIF-4 and ZIF-4-I.