Synthesis of homochiral zeolitic imidazolate frameworks via solvent-assisted linker exchange for enantioselective sensing and separation

CrystEngComm ◽  
2018 ◽  
Vol 20 (39) ◽  
pp. 5925-5928 ◽  
Author(s):  
Chao Zhuo ◽  
Fei Wang ◽  
Jian Zhang
Keyword(s):  
Zeolitic Imidazolate Frameworks ◽  
Linker Exchange ◽  
Enantioselective Sensing

Two homochiral zeolitic imidazolate frameworks (S- and R-ZIF-78h) of GME topology are synthesized via solvent-assisted linker exchange (SALE) of ZIF-78, which exhibit permanent porosity and enantioselective sensing and separation of proline.

Selective Solvent-Assisted Linker Exchange (SALE) in a Series of Zeolitic Imidazolate Frameworks

2015 ◽  
Vol 54 (15) ◽  
pp. 7142-7144 ◽  
Author(s):  
Marianne B. Lalonde ◽  
Joseph E. Mondloch ◽  
Pravas Deria ◽  
Amy A. Sarjeant ◽  
Salih S. Al-Juaid ◽  
...  
Keyword(s):  
Zeolitic Imidazolate Frameworks ◽  
Selective Solvent ◽  
Linker Exchange

Synthesis and characterization of isostructural cadmium zeolitic imidazolate frameworks via solvent-assisted linker exchange

2012 ◽  
Vol 3 (11) ◽  
pp. 3256 ◽  
Author(s):  
Olga Karagiaridi ◽  
Wojciech Bury ◽  
Amy A. Sarjeant ◽  
Charlotte L. Stern ◽  
Omar K. Farha ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Zeolitic Imidazolate Frameworks ◽  
Linker Exchange

scholarly journals Inter-conversion between zeolitic imidazolate frameworks: a dissolution–recrystallization process

2020 ◽  
Vol 8 (27) ◽  
pp. 13710-13717
Author(s):  
Min Tu ◽  
Suttipong Wannapaiboon ◽  
Roland A. Fischer
Keyword(s):  
Recrystallization Process ◽  
Zeolitic Imidazolate Frameworks ◽  
Linker Exchange

A dissolution–recrystallization process for the inter-conversions of zeolitic imidazolate frameworks following the linker exchange procedure has been demonstrated.

Revisiting the High-Pressure Properties of the Metal-Organic Frameworks ZIF-8 and ZIF-67

2020 ◽  
Author(s):  
Pia Vervoorts ◽  
Stefan Burger ◽  
Karina Hemmer ◽  
Gregor Kieslich
Keyword(s):  
High Pressure ◽  
State Of The Art ◽  
Energy Landscape ◽  
Structural Flexibility ◽  
Zeolitic Imidazolate Frameworks ◽  
Stimuli Responsive ◽  
X Ray Diffraction ◽  
X Ray ◽  
Open Questions ◽  
Metal Organic

The zeolitic imidazolate frameworks ZIF-8 and ZIF-67 harbour a series of fascinating stimuli responsive properties. Looking at their responsitivity to hydrostatic pressure as stimulus, open questions exist regarding the isotropic compression with non-penetrating pressure transmitting media. By applying a state-of-the-art high-pressure powder X-ray diffraction setup, we revisit the high-pressure behaviour of ZIF-8 and ZIF-67 up to <i>p</i> = 0.4 GPa in small pressure increments. We observe a drastic, reversible change of high-pressure powder X-ray diffraction data at <i>p</i> = 0.3 GPa, discovering large volume structural flexibility in ZIF-8 and ZIF-67. Our results imply a shallow underlying energy landscape in ZIF-8 and ZIF-67, an observation that might point at rich polymorphism of ZIF-8 and ZIF-67, similar to ZIF-4(Zn).<br>

Revisiting the High-Pressure Properties of the Metal-Organic Frameworks ZIF-8 and ZIF-67

2020 ◽  
Author(s):  
Pia Vervoorts ◽  
Stefan Burger ◽  
Karina Hemmer ◽  
Gregor Kieslich
Keyword(s):  
High Pressure ◽  
State Of The Art ◽  
Energy Landscape ◽  
Structural Flexibility ◽  
Zeolitic Imidazolate Frameworks ◽  
Stimuli Responsive ◽  
X Ray Diffraction ◽  
X Ray ◽  
Open Questions ◽  
Metal Organic

The zeolitic imidazolate frameworks ZIF-8 and ZIF-67 harbour a series of fascinating stimuli responsive properties. Looking at their responsitivity to hydrostatic pressure as stimulus, open questions exist regarding the isotropic compression with non-penetrating pressure transmitting media. By applying a state-of-the-art high-pressure powder X-ray diffraction setup, we revisit the high-pressure behaviour of ZIF-8 and ZIF-67 up to <i>p</i> = 0.4 GPa in small pressure increments. We observe a drastic, reversible change of high-pressure powder X-ray diffraction data at <i>p</i> = 0.3 GPa, discovering large volume structural flexibility in ZIF-8 and ZIF-67. Our results imply a shallow underlying energy landscape in ZIF-8 and ZIF-67, an observation that might point at rich polymorphism of ZIF-8 and ZIF-67, similar to ZIF-4(Zn).<br>

Influence of Metal Substitution on the Pressure-Induced Phase Change in Flexible Zeolitic Imidazolate Frameworks

2018 ◽  
Author(s):  
C. Michael McGuirk ◽  
Tomče Runčevski ◽  
Julia Oktawiec ◽  
Ari Turkiewicz ◽  
mercedes K. taylor ◽  
...  
Keyword(s):  
Phase Change ◽  
Single Crystal ◽  
Gas Adsorption ◽  
High Capacity ◽  
Phase Changes ◽  
Zeolitic Imidazolate Frameworks ◽  
Metal Substitution ◽  
Heat Management ◽  
Metal Organic ◽  
First Time

<p>Metal–organic frameworks that display step-shaped adsorption profiles arising from discrete pressure-induced phase changes are promising materials for applications in both high-capacity gas storage and energy-efficient gas separations. The thorough investigation of such materials through chemical diversification, gas adsorption measurements, and <i>in situ </i>structural characterization is therefore crucial for broadening their utility. We examine a series of isoreticular, flexible zeolitic imidazolate frameworks (ZIFs) of the type M(bim)<sub>2</sub> (SOD; M = Zn<sup> </sup>(ZIF-7), Co (ZIF-9), Cd (CdIF-13); bim<sup>–</sup> = benzimidazolate), and elucidate the effects of metal substitution on the pressure-responsive phase changes and the resulting CO<sub>2</sub> and CH<sub>4</sub> step positions, pre-step uptakes, and step capacities. Using ZIF-7 as a benchmark, we reexamine the poorly understood structural transition responsible for its adsorption steps and, through high-pressure adsorption measurements, verify that it displays a step in its CH<sub>4 </sub>adsorption isotherms. The ZIF-9 material is shown to undergo an analogous phase change, yielding adsorption steps for CO<sub>2</sub> and CH<sub>4</sub> with similar profiles and capacities to ZIF-7, but with shifted threshold pressures. Further, the Cd<sup>2+</sup> analogue CdIF-13 is reported here for the first time, and shown to display adsorption behavior distinct from both ZIF-7 and ZIF-9, with negligible pre-step adsorption, a ~50% increase in CO<sub>2</sub> and CH<sub>4</sub> capacity, and dramatically higher threshold adsorption pressures. Remarkably, a single-crystal-to-single-crystal phase change to a pore-gated phase is also achieved with CdIF-13, providing insight into the phase change that yields step-shaped adsorption in these flexible ZIFs. Finally, we show that the endothermic phase change of these frameworks provides intrinsic heat management during gas adsorption. </p>

scholarly journals Electrochemical actuators based on nitrogen-doped carbons derived from zeolitic imidazolate frameworks

2020 ◽  
Vol 187 ◽  
pp. 108405
Author(s):  
Fangzhou Lu ◽  
Kai Xiang ◽  
Yanni Wang ◽  
Tian Chen
Keyword(s):  
Zeolitic Imidazolate Frameworks ◽  
Nitrogen Doped

Self-templated formation of hierarchically yolk-shell-structured ZnS/NC dodecahedra with superior lithium storage properties

Nanoscale ◽  
2021 ◽  
Author(s):  
Ping Wang ◽  
Aihua Yuan ◽  
Zhitao Wang ◽  
Xiao Ping Shen ◽  
Hantao Chen ◽  
...  
Keyword(s):  
Synthetic Method ◽  
Zeolitic Imidazolate Frameworks ◽  
Lithium Storage ◽  
Storage Properties

The hierarchical ZnS/NC dodecahedra are successfully constructed via a two-step synthetic method combining a sulfidation process and subsequent carbonization treatment, benefiting from the inherit merits of zeolitic imidazolate frameworks as...

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