Hybrid Monte Carlo Simulations Combined with a Phase Mixture Model to Predict the Structural Transitions of a Porous Metal−Organic Framework Material upon Adsorption of Guest Molecules

2010 ◽  
Vol 114 (14) ◽  
pp. 6496-6502 ◽  
Author(s):  
A. Ghoufi ◽  
G. Maurin
2009 ◽  
Vol 11 (18) ◽  
pp. 3515 ◽  
Author(s):  
Vincent Finsy ◽  
Sofia Calero ◽  
Elena García-Pérez ◽  
Patrick J. Merkling ◽  
Gill Vedts ◽  
...  

2014 ◽  
Vol 2 (7) ◽  
pp. 2088-2100 ◽  
Author(s):  
Tony Pham ◽  
Katherine A. Forrest ◽  
Adam Hogan ◽  
Keith McLaughlin ◽  
Jonathan L. Belof ◽  
...  

Grand canonical Monte Carlo simulations of H2 sorption were performed in the metal–organic framework rht-MOF-1. The binding sites were revealed by combining simulation and inelastic neutron scattering data.


AIChE Journal ◽  
2014 ◽  
Vol 60 (6) ◽  
pp. 2324-2334 ◽  
Author(s):  
Zhiwei Qiao ◽  
Ariana Torres-Knoop ◽  
David Dubbeldam ◽  
David Fairen-Jimenez ◽  
Jian Zhou ◽  
...  

Author(s):  
Sebastian Ehrling ◽  
Emily M. Reynolds ◽  
Volodymyr Bon ◽  
Irena Senkovska ◽  
Tatiana E. Gorelik ◽  
...  

A highly porous metal-organic framework (DUT-8(Ni), DUT = Dresden University of Technology) is found to adopt a configurationally-degenerate family of disordered states that respond adaptively to specific guest stimuli. This disorder originates from non-linear carboxylate linkers arranging paddlewheels in closed loops of different local symmetries that in turn propagate as tilings of characteristic complex superstructures. Solvent exchange stimulates the formation of distinct disordered superstructures for specific guest molecules. Electron diffraction by desolvated DUT-8(Ni) nanoparticles demonstrates these superstructures to persist on the nanodomain level. Remarkably, guest exchange stimulates reversible and repeatable switching transitions between distinct disorder states. Deuterium NMR spectroscopy and in situ PXRD studies identify the transformation mechanism as an adaptive singular transformation event.<br>


2020 ◽  
Author(s):  
Sebastian Ehrling ◽  
Emily M. Reynolds ◽  
Volodymyr Bon ◽  
Irena Senkovska ◽  
Tatiana E. Gorelik ◽  
...  

A highly porous metal-organic framework (DUT-8(Ni), DUT = Dresden University of Technology) is found to adopt a configurationally-degenerate family of disordered states that respond adaptively to specific guest stimuli. This disorder originates from non-linear carboxylate linkers arranging paddlewheels in closed loops of different local symmetries that in turn propagate as tilings of characteristic complex superstructures. Solvent exchange stimulates the formation of distinct disordered superstructures for specific guest molecules. Electron diffraction by desolvated DUT-8(Ni) nanoparticles demonstrates these superstructures to persist on the nanodomain level. Remarkably, guest exchange stimulates reversible and repeatable switching transitions between distinct disorder states. Deuterium NMR spectroscopy and in situ PXRD studies identify the transformation mechanism as an adaptive singular transformation event.<br>


2008 ◽  
pp. 5556 ◽  
Author(s):  
Bo-Wen Hu ◽  
Jiong-Peng Zhao ◽  
E. C. Sañudo ◽  
Fu-Chen Liu ◽  
Yong-Fei Zeng ◽  
...  

2008 ◽  
Vol 73 (1) ◽  
pp. 24-31
Author(s):  
Dayu Wu ◽  
Genhua Wu ◽  
Wei Huang ◽  
Zhuqing Wang

The compound [Cd(4,4'-bpy)2(H2O)2](ClO4)2·(L)2 was obtained by the reaction of Cd(ClO4)2, bis(1-pyrazinylethylidene)hydrazine (L) and 4,4'-bipyridine in aqueous MeOH. Single-crystal X-ray diffraction has revealed its two-dimensional metal-organic framework. The 2-D layers superpose on each other, giving a channel structure. The square planar grids consist of two pairs of shared edges with Cd(II) ion and a 4,4'-bipyridine molecule each vertex and side, respectively. The square cavity has a dimension of 11.817 × 11.781 Å. Two guest molecules of bis(1-pyrazinylethylidene)hydrazine are clathrated in every hydrophobic host cavity, being further stabilized by π-π stacking and hydrogen bonding. The results suggest that the hydrazine molecules present in the network serve as structure-directing templates in the formation of crystal structures.


2021 ◽  
Vol 143 (3) ◽  
pp. 1365-1376
Author(s):  
Sérgio M. F. Vilela ◽  
Jorge A. R. Navarro ◽  
Paula Barbosa ◽  
Ricardo F. Mendes ◽  
Germán Pérez-Sánchez ◽  
...  

2021 ◽  
Vol 5 (4) ◽  
pp. 101
Author(s):  
Menglian Wei ◽  
Yu Wan ◽  
Xueji Zhang

Metal-organic framework (MOF) based stimuli-responsive polymers (coordination polymers) exhibit reversible phase-transition behavior and demonstrate attractive properties that are capable of altering physical and/or chemical properties upon exposure to external stimuli, including pH, temperature, ions, etc., in a dynamic fashion. Thus, their conformational change can be imitated by the adsorption/desorption of target analytes (guest molecules), temperature or pressure changes, and electromagnetic field manipulation. MOF-based stimuli responsive polymers have received great attention due to their advanced optical properties and variety of applications. Herein, we summarized some recent progress on MOF-based stimuli-responsive polymers (SRPs) classified by physical and chemical responsiveness, including temperature, pressure, electricity, pH, metal ions, gases, alcohol and multi-targets.


Sign in / Sign up

Export Citation Format

Share Document