A hydrophobic semiconducting metal–organic framework assembled from silver chalcogenide wires

2020 ◽  
Vol 56 (14) ◽  
pp. 2091-2094 ◽  
Author(s):  
Jia-Yin Wang ◽  
Wen-Hua Li ◽  
Zhong Wei ◽  
Chong Zhang ◽  
Ya-Hui Li ◽  
...  

Silver chalcogenide wires are for the first time assembled into a rigid framework structure using a fluorinated carboxylate ligand, where electron transfer along Ag–S chains enables semi-conduction.

2019 ◽  
Author(s):  
Timothée Stassin ◽  
Ivo Stassen ◽  
Joao Marreiros ◽  
Alexander John Cruz ◽  
Rhea Verbeke ◽  
...  

A simple solvent- and catalyst-free method is presented for the synthesis of the mesoporous metal-organic framework (MOF) MAF-6 (RHO-Zn(eIm)2) based on the reaction of ZnO with 2-ethylimidazole vapor at temperatures ≤ 100 °C. By translating this method to a chemical vapor deposition (CVD) protocol, mesoporous crystalline films could be deposited for the first time entirely from the vapor phase. A combination of PALS and Kr physisorption measurements confirmed the porosity of these MOF-CVD films and the size of the MAF-6 supercages (diam. ~2 nm), in close agreement with powder data and calculations. MAF-6 powders and films were further characterized by XRD, TGA, SEM, FTIR, PDF and EXAFS. The exceptional uptake capacity of the mesoporous MAF-6 in comparison to the microporous ZIF-8 is demonstrated by vapor-phase loading of a molecule larger than the ZIF-8 windows.


2020 ◽  
Vol 56 (44) ◽  
pp. 5929-5932 ◽  
Author(s):  
Peng Li ◽  
Qi Sui ◽  
Meng-Yue Guo ◽  
Shuai-Liang Yang ◽  
Ran Bu ◽  
...  

The MOF provides unique confined space furnished with electron acceptor sites, and exposure to amines/alcohols causes specific and size-selective direct/UV-assisted color change owing to spontaneous/photoinduced electron transfer.


2016 ◽  
Vol 7 (47) ◽  
pp. 7199-7203 ◽  
Author(s):  
Hui-Chun Lee ◽  
Markus Antonietti ◽  
Bernhard V. K. J. Schmidt

A Cu(ii) MOF can serve as an comprehensive catalyst for activators regenerated by electron transfer atom transfer radical polymerization (ARGET ATRP) in the synthesis of benzyl methacrylate, styrene, isoprene and 4-vinylpyridine.


2007 ◽  
pp. 4881 ◽  
Author(s):  
Sergio J. Garibay ◽  
Jay R. Stork ◽  
Zhenqiang Wang ◽  
Seth M. Cohen ◽  
Shane G. Telfer

2019 ◽  
Vol 10 (18) ◽  
pp. 2263-2272 ◽  
Author(s):  
Huaizhi Liu ◽  
Hao Peng ◽  
Yumeng Xin ◽  
Jiuyang Zhang

We reported for the first time using metal–organic framework (MOF) nanoparticles as effective nanofillers to significantly enhance the mechanical performance of hydrogels. The MOF hydrogels have been developed for drug delivery materials with high loading capacity and much extended drug releasing profiles.


2019 ◽  
Vol 6 (7) ◽  
pp. 1433-1437 ◽  
Author(s):  
Ziming Wang ◽  
Xingtao Xu ◽  
Jeonghun Kim ◽  
Victor Malgras ◽  
Ran Mo ◽  
...  

Metal–organic framework/polypyrrole hybrids are synthesized and directly used in capacitive deionization for the first time.


2018 ◽  
Vol 9 (12) ◽  
pp. 3152-3158 ◽  
Author(s):  
Caiyun Xu ◽  
Hang Liu ◽  
Dandan Li ◽  
Ji-Hu Su ◽  
Hai-Long Jiang

For the first time, the photoexcited charge separation in a metal–organic framework has been evidenced with clear ESR signals, based on efficient and selective photocatalytic oxidative coupling of amines.


2018 ◽  
Vol 233 (6) ◽  
pp. 429-435
Author(s):  
Samaila A. Jovial ◽  
James Raftery ◽  
Michael W. Anderson ◽  
Martin P. Attfield

Abstract The ordered structure of the guest-free microporous metal-organic framework zinc 5-tert-butyl isophthalate {Zn[(CH3)3CC6H3(CO2)2]} has been determined and shown to be easily loaded with methanol to form {Zn[(CH3)3CC6H3(CO2)2]}·CH3OH. The methanol forms a S6-symmetric hexamer within the pores of the material that is uniquely defined by the void space and exerts a subtle structural effect on the framework structure of the host. The work demonstrates the use of this type of metal-organic framework as a matrix to isolate unique molecular clusters in a facile manner.


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