Experimental and theoretical investigations on Se(iv) and Se(vi) adsorption to UiO-66-based metal–organic frameworks

2018 ◽  
Vol 5 (6) ◽  
pp. 1441-1453 ◽  
Author(s):  
Jingmiao Wei ◽  
Wei Zhang ◽  
Weiyi Pan ◽  
Chaoran Li ◽  
Weiling Sun

HSeO3−/SeO32− bonds to UiO-66 on Zr mainly through Lewis acid/base complexation and H2SeO3 bonds on Zr–O–C mainly through hydrogen bonding.

2017 ◽  
Vol 5 (38) ◽  
pp. 20398-20406 ◽  
Author(s):  
Jie Li ◽  
Qunyan Wu ◽  
Xiangxue Wang ◽  
Zhifang Chai ◽  
Weiqun Shi ◽  
...  

Electrostatic attractions combined with the non-negligible π–π interactions, hydrogen bonding and acid–base interactions lead to the heteroaggregation between GO and Zr based MOFs.


2021 ◽  
Author(s):  
James Ellis ◽  
Scott Crawford ◽  
Ki-Joong Kim

Metal-organic frameworks (MOFs) have been widely investigated as chemical sensing materials due to their periodic porosity, tunable chemical functionalities such as Lewis acid/base sites, potential conductivity and/or sensitive optical properties....


2018 ◽  
Vol 20 (13) ◽  
pp. 3081-3091 ◽  
Author(s):  
Sergio Rojas-Buzo ◽  
Pilar García-García ◽  
Avelino Corma

Hafnium-based metal–organic frameworks are promising catalysts for upgrading biomass derivatives via an aldol condensation reaction.


2020 ◽  
Vol 10 (2) ◽  
pp. 315-322 ◽  
Author(s):  
Yanjing Hu ◽  
Jian Zhang ◽  
Hang Huo ◽  
Zhe Wang ◽  
Xianzhu Xu ◽  
...  

Bimetallic MIL-101(Al/Fe)–NH2 exhibits enhanced acid–base bifunctional catalytic activity due to its synergistic mechanism and hierarchical pore system.


2009 ◽  
Vol 131 (38) ◽  
pp. 13625-13627 ◽  
Author(s):  
Prashant Jain ◽  
Vasanth Ramachandran ◽  
Ronald J. Clark ◽  
Hai Dong Zhou ◽  
Brian H. Toby ◽  
...  

2006 ◽  
Vol 6 (2) ◽  
pp. 555-563 ◽  
Author(s):  
Radu Custelcean ◽  
Bruce A. Moyer ◽  
Vyacheslav S. Bryantsev ◽  
Benjamin P. Hay

Author(s):  
Muhammad Usman ◽  
Lydia Ogebule ◽  
Raúl Castañeda ◽  
Evgenii Oskolkov ◽  
Tatiana Timofeeva

Two structurally different metal–organic frameworks based on Sr2+ ions and 1,2,4,5-tetrakis(4-carboxyphenyl)benzene linkers have been synthesized solvothermally in different solvent systems and studied with single-crystal X-ray diffraction technique. These are poly[[μ12-4,4′,4′′,4′′′-(benzene-1,2,4,5-tetrayl)tetrabenzoato](dimethylformamide)distrontium(II)], [Sr2(C34H18O8)(C3H7NO)2] n , and poly[tetraaqua{μ2-4,4′-[4,5-bis(4-carboxyphenyl)benzene-1,2-diyl]dibenzoato}tristrontium(II)], [Sr3(C34H20O8)2(H2O)4]. The differences are noted between the crystal structures and coordination modes of these two MOFs, which are responsible for their semiconductor properties, where structural control over the bandgap is desirable. Hydrogen bonding is present in only one of the compounds, suggesting it has a slightly higher structural stability.


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