scholarly journals Neutral N-donor ligand based flexible metal–organic frameworks

2016 ◽  
Vol 45 (10) ◽  
pp. 4060-4072 ◽  
Author(s):  
Biplab Manna ◽  
Aamod V. Desai ◽  
Sujit K. Ghosh

This short review focuses on the flexibility aspect of MOFs based on neutral N-donor ligands with representative examples concerning the structural aspects and the subsequent properties induced by the reorganization of the frameworks.

ChemInform ◽  
2016 ◽  
Vol 47 (16) ◽  
Author(s):  
Biplab Manna ◽  
Aamod V. Desai ◽  
Sujit K. Ghosh

RSC Advances ◽  
2021 ◽  
Vol 11 (39) ◽  
pp. 23975-23984
Author(s):  
Xue Yang ◽  
Yixia Ren ◽  
Hongmei Chai ◽  
Xiufang Hou ◽  
Zhixiang Wang ◽  
...  

Four fluorescent 2D Zn-MOFs based on a flexible triangular ligand and linear N-donor ligands are hydrothermally prepared and used to detect nitrobenzene in aqueous solution with high sensitivity, demonstrating their potential as fluorescent sensors.


Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 283
Author(s):  
Oxana Kholdeeva ◽  
Nataliya Maksimchuk

In recent years, metal–organic frameworks (MOFs) have received increasing attention as selective oxidation catalysts and supports for their construction. In this short review paper, we survey recent findings concerning use of MOFs in heterogeneous liquid-phase selective oxidation catalysis with the green oxidant–aqueous hydrogen peroxide. MOFs having outstanding thermal and chemical stability, such as Cr(III)-based MIL-101, Ti(IV)-based MIL-125, Zr(IV)-based UiO-66(67), Zn(II)-based ZIF-8, and some others, will be in the main focus of this work. The effects of the metal nature and MOF structure on catalytic activity and oxidation selectivity are analyzed and the mechanisms of hydrogen peroxide activation are discussed. In some cases, we also make an attempt to analyze relationships between liquid-phase adsorption properties of MOFs and peculiarities of their catalytic performance. Attempts of using MOFs as supports for construction of single-site catalysts through their modification with heterometals will be also addressed in relation to the use of such catalysts for activation of H2O2. Special attention is given to the critical issues of catalyst stability and reusability. The scope and limitations of MOF catalysts in H2O2-based selective oxidation are discussed.


Nature ◽  
2015 ◽  
Vol 527 (7578) ◽  
pp. 357-361 ◽  
Author(s):  
Jarad A. Mason ◽  
Julia Oktawiec ◽  
Mercedes K. Taylor ◽  
Matthew R. Hudson ◽  
Julien Rodriguez ◽  
...  

2019 ◽  
Vol 21 (6) ◽  
pp. 3294-3303 ◽  
Author(s):  
Justyna Rogacka ◽  
Filip Formalik ◽  
Azahara L. Triguero ◽  
Lucyna Firlej ◽  
Bogdan Kuchta ◽  
...  

Adsorption studies in flexible metal–organic frameworks are challenging and time-consuming.


2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Shamsur Rahman ◽  
Arash Arami-Niya ◽  
Xiaoxian Yang ◽  
Gongkui Xiao ◽  
Gang (Kevin) Li ◽  
...  

Abstract“Breathing” and “gating” are striking phenomena exhibited by flexible metal-organic frameworks (MOFs) in which their pore structures transform upon external stimuli. These effects are often associated with eminent steps and hysteresis in sorption isotherms. Despite significant mechanistic studies, the accurate description of stepped isotherms and hysteresis remains a barrier to the promised applications of flexible MOFs in molecular sieving, storage and sensing. Here, we investigate the temperature dependence of structural transformations in three flexible MOFs and present a new isotherm model to consistently analyse the transition pressures and step widths. The transition pressure reduces exponentially with decreasing temperature as does the degree of hysteresis (c.f. capillary condensation). The MOF structural transition enthalpies range from +6 to +31 kJ·mol−1 revealing that the adsorption-triggered transition is entropically driven. Pressure swing adsorption process simulations based on flexible MOFs that utilise the model reveal how isotherm hysteresis can affect separation performance.


2020 ◽  
Vol 142 (35) ◽  
pp. 14903-14913 ◽  
Author(s):  
Yong Yan ◽  
Elliot J. Carrington ◽  
Rémi Pétuya ◽  
George F. S. Whitehead ◽  
Ajay Verma ◽  
...  

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