A new luminescent metal-organic framework with 2,6-di(1H-imidazol-1-yl)naphthalene and biphenyl-3,4′,5-tricarboxylic acid

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Zhi-Qiang Liu ◽  
Ran-Ran Liu ◽  
Heng-Hui Jin ◽  
Long-Wen Lei ◽  
Zhi-Ping Wang ◽  
...  

Abstract In this work, a novel metal-organic framework (MOF) based on 2,6-di(1H-imidazol-1-yl)naphthalene (L) and biphenyl-3,4′,5-tricarboxylic acid (H3bptc), namely [Co(L)(Hbptc)(H2O)] (1), has been prepared. 1 has a distinct infinite chain structure, further linked together by winding interactions to give the three-dimensional (3D) network structure. 1 was characterized by X-ray crystallography, infrared spectra (IR) spectroscopy, elemental and thermal analysis. Photoluminescence studies revealed that 1 shows a strong emission at 361 nm upon excitation at 290 nm at room temperature. Moreover, 1 can efficiently detect Fe3+ ions by luminescence quenching.

2021 ◽  
pp. 174751982110189
Author(s):  
Jifa Yin ◽  
Youjie Han ◽  
Hongmei Zhu ◽  
Ye Tian

An amino-functionalized three-dimensional cadmium metal–organic framework, [Cd1.5(L)(DMF)]·2H2O (complex 1) L = H3TTCA-NH2 = 2′-amino-[1,1′:3′,1″-terphenyl]-4,4″,5′-tricarboxylic acid), is successfully synthesized under solvothermal conditions and structurally characterized. Interestingly, as a transition metal organic framework, the cadmium metal–organic framework exhibits favorable luminescence properties. In addition, the cadmium metal–organic framework reveals excellent selective and sensitive fluorescence sensing for the recognition of Fe3+ with high quenching efficiency ( Ksv = 3.340 × 103 M−1), demonstrating that the cadmium metal–organic framework can be used as a potential sensor for Fe3+.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Omid T. Qazvini ◽  
Ravichandar Babarao ◽  
Shane G. Telfer

AbstractEfficient and sustainable methods for carbon dioxide capture are highly sought after. Mature technologies involve chemical reactions that absorb CO2, but they have many drawbacks. Energy-efficient alternatives may be realised by porous physisorbents with void spaces that are complementary in size and electrostatic potential to molecular CO2. Here, we present a robust, recyclable and inexpensive adsorbent termed MUF-16. This metal-organic framework captures CO2 with a high affinity in its one-dimensional channels, as determined by adsorption isotherms, X-ray crystallography and density-functional theory calculations. Its low affinity for other competing gases delivers high selectivity for the adsorption of CO2 over methane, acetylene, ethylene, ethane, propylene and propane. For equimolar mixtures of CO2/CH4 and CO2/C2H2, the selectivity is 6690 and 510, respectively. Breakthrough gas separations under dynamic conditions benefit from short time lags in the elution of the weakly-adsorbed component to deliver high-purity hydrocarbon products, including pure methane and acetylene.


2017 ◽  
Vol 363 ◽  
pp. 103-109 ◽  
Author(s):  
Jiarui He ◽  
Weiqiang Lv ◽  
Yuanfu Chen ◽  
Jie Xiong ◽  
Kechun Wen ◽  
...  

2022 ◽  
Author(s):  
Julia G. Knapp ◽  
Debmalya Ray ◽  
Paul B. Calio ◽  
Megan C. Wasson ◽  
Thais R. Scott ◽  
...  

Competitive electron transitions are present in a rare three-dimensional Ce(iii)-catecholate metal–organic framework.


2022 ◽  
Author(s):  
Xiang Han ◽  
Tiantian Wu ◽  
Lanhui Gu ◽  
Dian Tian

A three-dimensional (3D) metal-organic framework containing Li-oxygen clusters, namely {[Li2(IPA)]·DMF}n (1) (H2IPA = isophthalic acid), has been constructed under solvothermal conditions. The Li-based MOF can be applied to lithium energy...


2017 ◽  
Vol 129 (44) ◽  
pp. 13969-13973 ◽  
Author(s):  
Gan Jia ◽  
Wen Zhang ◽  
Guozheng Fan ◽  
Zhaosheng Li ◽  
Degang Fu ◽  
...  

2015 ◽  
Vol 68 (1) ◽  
pp. 161 ◽  
Author(s):  
Zhuo-Wei Wang ◽  
Hui Zhao ◽  
Min Chen ◽  
Min Hu

Combination of a non-planar tripodal ligand 3,4-bi(4-carboxyphenyl)-benzoic acid (H3L) and Zn5O4-cluster secondary building units affords a highly connected three-dimensional metal–organic framework, {[Zn5(μ3-OH)3(μ2-OH)L2(H2O)2](H2O)2}n (1), which exhibits an unusual (3,4,9)-connected (42.5)(3.43.52)(32.45.511.613.73.82) topological net. The thermal stability and solid luminescence of the crystalline material have also been investigated.


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