Synthesis, phase transitions and vitrification of the zeolitic ...
Dec 1, 2019 · For these two purposes, we perform a systematic study by varying the solvothermal synthesis condition of ZIF-4 (Zn[C 3 N 2 H 3] 2) crystals. We found that pure ZIF-4 crystals …
Zeolitic imidazolate framework - Wikipedia
Zeolitic imidazolate frameworks (ZIFs) are a class of metal-organic frameworks (MOFs) that are topologically isomorphic with zeolites. [1] . ZIFs are composed of tetrahedrally-coordinated …
Liquid metal–organic frameworks - Nature Materials
Oct 9, 2017 · We first studied the evolution in structure of ZIF-4, which is composed of Zn (Im) 4 tetrahedra linked by Zn–N coordinative bonds (Fig. 1a, b), and forms a three-dimensional, …
Metal–Organic Network-Forming Glasses | Chemical Reviews
Jan 19, 2022 · The effect of topology and chemical structure on the structure of the quenched state was further investigated by ab initio modeling with three representative ZIFs: ZIF-4, ZIF …
Crystal structures of ZIF-4 and ZIF-zni, exhibiting the same …
We use ab initio density functional theory (DFT) to elucidate the mechanical properties of two topologically distinct zeolitic imidazolate framework (ZIF) materials: ZIF-4 and ZIF-zni, both...
Structure and Properties of an Amorphous Metal-Organic …
Mar 19, 2010 · ZIF-4, a metal-organic framework (MOF) with a zeolitic structure, undergoes a crystal–amorphous transition on heating to 300 ° C. The amorphous form, which we term a …
The Atomic Structure and Mechanical Properties of ZIF-4 under …
Dec 20, 2022 · An initial correlation between the mechanical properties of ZIF-4 and mid-range structural parameters, such as free volume, is presented . The structure–properties …
Raman Evidence of Multiple Adsorption Sites and Structural ...
May 10, 2023 · The zeolitic imidazolate framework, ZIF-4, exhibits soft porosity and is known to show pore volume changes with temperatures, pressures, and guest adsorption. However, the …
ZIF-4 | Berkeley Global Science Institute
Abstract: Twelve zeolitic imidazolate frameworks (ZIFs; termed ZIF-1 to -12) have been synthesized as crystals by copolymerization of either Zn (II) (ZIF-1 to -4, -6 to -8, and -10 to …
New insights into the breathing phenomenon in ZIF-4
May 16, 2019 · Synchrotron X-ray diffraction under operando conditions clearly demonstrates for the first time that ZIF-4 exhibits a structural reorientation from a narrow-pore (np) to a new …