Selective chemochromic and chemically-induced photochromic response of a metal–organic framework

2020 ◽  
Vol 56 (44) ◽  
pp. 5929-5932 ◽  
Author(s):  
Peng Li ◽  
Qi Sui ◽  
Meng-Yue Guo ◽  
Shuai-Liang Yang ◽  
Ran Bu ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Electron Acceptor ◽  
Photoinduced Electron Transfer ◽  
Color Change ◽  
Metal Organic Framework ◽  
Confined Space ◽  
Chemically Induced ◽  
Metal Organic ◽  
Organic Framework

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.

Fixed distance photoinduced electron transfer between Fe and Zn porphyrins encapsulated within the Zn HKUST-1 metal organic framework

2015 ◽  
Vol 44 (7) ◽  
pp. 2959-2963 ◽  
Author(s):  
Randy W. Larsen ◽  
Lukasz Wojtas
Keyword(s):  
Electron Transfer ◽  
Electron Donor ◽  
Electron Acceptor ◽  
Photoinduced Electron Transfer ◽  
Metal Organic Framework ◽  
Fixed Distance ◽  
Metal Organic ◽  
Organic Framework

An attractive strategy for the development of photocatalytic metal organic framework (MOF) materials is to co-encapsulate a photoactive electron donor with a catalytic electron acceptor within the MOF.

Highly selective metal–organic framework-based sensor for protamine through photoinduced electron transfer

2018 ◽  
Vol 54 (4) ◽  
pp. 3144-3155 ◽  
Author(s):  
Fei Qu ◽  
Xiaonan Li ◽  
Xiaoxia Lv ◽  
Jinmao You ◽  
Wenli Han
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Organic Framework

Photoinduced-electron-transfer-driven surface modification to regulate adsorption behavior in a pyridinium-decorated metal–organic framework

2019 ◽  
Vol 55 (85) ◽  
pp. 12829-12832 ◽  
Author(s):  
Xiao-Dong Yang ◽  
Na Gao ◽  
Shuai Ma ◽  
Jing-Wang Cui ◽  
Meng-Ze Jia ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Surface Modification ◽  
Photoinduced Electron Transfer ◽  
Metal Organic Framework ◽  
Adsorption Behavior ◽  
Polar Molecules ◽  
Adsorption Behaviors ◽  
Metal Organic ◽  
Organic Framework

Photoinduced-electron-transfer-driven surface modification was presented in a pyridinium-decorated metal–organic framework and found to be effective to regulate its adsorption behaviors toward polar molecules and halogens.

A fourfold interpenetrating cadmium(II) metal–organic framework based on 2,4,6-tris(pyridin-4-yl)-1,3,5-triazine with reversible photochromic properties

2019 ◽  
Vol 75 (3) ◽  
pp. 372-377 ◽  
Author(s):  
Jian-Jun Liu ◽  
Li-Zhi Li ◽  
Chun-Ping Chen ◽  
Jin-Zhong Wei ◽  
Fei-Xiang Cheng
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Metal Organic Framework ◽  
Crystal Structure Analysis ◽  
X Ray Diffraction ◽  
Photochromic Properties ◽  
X Ray ◽  
Good Thermal Stability ◽  
Metal Organic ◽  
Organic Framework

2,4,6-Tris(pyridin-4-yl)-1,3,5-triazine (tpt), as an organic molecule with an electron-deficient nature, has attracted considerable interest because of its photoinduced electron transfer from neutral organic molecules to form stable anionic radicals. This makes it an excellent candidate as an organic linker in the construction of photochromic complexes. Such a photochromic three-dimensional (3D) metal–organic framework (MOF) has been prepared using this ligand. Crystallization of tpt with Cd(NO3)2·4H2O in an N,N-dimethylacetamide–methanol mixed-solvent system under solvothermal conditions afforded the 3D MOF poly[[bis(nitrato-κ2 O,O′)cadmium(II)]-μ3-2,4,6-tris(pyridin-4-yl)-1,3,5-triazine-κ3 N 2:N 4:N 6], [Cd(NO3)2(C18H12N6)] n , which was characterized by IR spectroscopy, elemental analysis, thermogravimetric analysis and single-crystal X-ray diffraction. The X-ray diffraction crystal structure analysis reveals that the asymmetric unit contains one independent CdII cation, one tpt ligand and two coordinated NO3 − anions. The CdII cations are connected by tpt ligands to generate a 3D framework. The single framework leaves voids that are filled by mutual interpenetration of three independent equivalent frameworks in a fourfold interpenetrating architecture. The compound shows a good thermal stability and exhibits a reversible photochromic behaviour, which may originate from the photoinduced electron-transfer generation of radicals in the tpt ligand.

Guest to framework photoinduced electron transfer in a cobalt substituted RWLC-2 metal organic framework

2018 ◽  
Vol 47 (28) ◽  
pp. 9250-9256 ◽  
Author(s):  
Christopher R. McKeithan ◽  
Lukasz Wojtas ◽  
Randy W. Larsen
Keyword(s):  
Electron Transfer ◽  
Porous Materials ◽  
Photoinduced Electron Transfer ◽  
Light Harvesting ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Organic Framework

Photoinduced electron transfer (PET) between donors and acceptors in porous materials is a key element in the development of light harvesting applications.

scholarly journals A Cu(ii) metal–organic framework as a recyclable catalyst for ARGET ATRP

2016 ◽  
Vol 7 (47) ◽  
pp. 7199-7203 ◽  
Author(s):  
Hui-Chun Lee ◽  
Markus Antonietti ◽  
Bernhard V. K. J. Schmidt
Keyword(s):  
Electron Transfer ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Metal Organic Framework ◽  
Recyclable Catalyst ◽  
Atom Transfer ◽  
Arget Atrp ◽  
Metal Organic ◽  
Organic Framework

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.

Photoresponsivity and antibiotic sensing properties of an entangled tris(pyridinium)-based metal–organic framework

2020 ◽  
Vol 49 (22) ◽  
pp. 7488-7495 ◽  
Author(s):  
Peng Li ◽  
Meng-Yue Guo ◽  
Lu-Lu Gao ◽  
Xue-Mei Yin ◽  
Shuai-Liang Yang ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Metal Organic Framework ◽  
Sensing Properties ◽  
Luminescent Sensor ◽  
Donor Acceptor ◽  
Metal Organic ◽  
Nitrofuran Antibiotics ◽  
Organic Framework

Novel 2D → 2D entanglement affords close donor–acceptor contacts for electron transfer based photochromism and photomodulable fluorescence of a MOF, which also serves as a regenerable and sensitive luminescent sensor for nitrofuran antibiotics.

An electron-transfer photochromic metal–organic framework (MOF) compound with a long-lived charge-separated state and high-contrast photoswitchable luminescence

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24190-24194 ◽  
Author(s):  
Xiu-Shuang Xing ◽  
Zi-Wei Chen ◽  
Li-Zhen Cai ◽  
Cai Sun ◽  
Lin-Rong Cai ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Metal Organic Framework ◽  
Pyridine Derivative ◽  
High Contrast ◽  
Photochromic Compounds ◽  
Metal Organic ◽  
A Charge ◽  
Organic Framework

A new photochromic MOF compound exhibits a charge-separated state with lifetime exceeding the reported values of the analogues and a luminescence contrast higher than those of most known pyridine derivative-based photochromic compounds.

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 ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Metal Organic Framework ◽  
Carboxylate Ligand ◽  
Framework Structure ◽  
Silver Chalcogenide ◽  
Rigid Framework ◽  
Metal Organic ◽  
First Time ◽  
Organic Framework

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.

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