scholarly journals Temperature dependent CO2 behavior in microporous 1-D channels of a metal-organic framework with multiple interaction sites

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Dongwook Kim ◽  
Jaehun Park ◽  
Yung Sam Kim ◽  
Myoung Soo Lah
Keyword(s):  
Metal Organic Framework ◽  
Temperature Dependent ◽  
Interaction Sites ◽  
Metal Organic ◽  
Multiple Interaction ◽  
Organic Framework

Revealing an unusual temperature-dependent CO2 adsorption trend and selective CO2 uptake over water vapors in a polyamine-appended metal–organic framework

2019 ◽  
Vol 3 (12) ◽  
pp. 2759-2767 ◽  
Author(s):  
Jong Hyeak Choe ◽  
Dong Won Kang ◽  
Minjung Kang ◽  
Hyojin Kim ◽  
Jeoung Ryul Park ◽  
...  
Keyword(s):  
Co2 Adsorption ◽  
Selective Adsorption ◽  
Metal Organic Framework ◽  
Co2 Uptake ◽  
Temperature Dependent ◽  
Water Vapors ◽  
Metal Organic ◽  
Adsorption Of Co ◽  
Unusual Increase ◽  
Organic Framework

Heavily tetraethylenepentamine (tepa)-functionalized Mg2(dobpdc) showed an unusual increase in CO2 uptake on increasing the temperature and selective adsorption of CO2 over water vapors.

scholarly journals Temperature-dependent interchromophoric interaction in a fluorescent pyrene-based metal–organic framework

2019 ◽  
Vol 10 (24) ◽  
pp. 6140-6148 ◽  
Author(s):  
Andrzej Gładysiak ◽  
Tu N. Nguyen ◽  
Richard Bounds ◽  
Anna Zacharia ◽  
Grigorios Itskos ◽  
...  
Keyword(s):  
Variable Temperature ◽  
Metal Organic Framework ◽  
Temperature Dependent ◽  
Fluorescent Emission ◽  
Metal Organic ◽  
Organic Framework

Variable temperature experiments revealed that the fluorescent emission colour of the pyrene-based SION-7 changes from blue at 80 K to yellow-green at 450 K.

Temperature-dependent assemblies from a 2-D triple-stranded meso-helical layer to a 3-D chain-layer metal–organic framework

2012 ◽  
Vol 41 (47) ◽  
pp. 14239 ◽  
Author(s):  
Hong-Guang Jin ◽  
Xu-Jia Hong ◽  
Jing Li ◽  
Yuan-Zhao Yan ◽  
Yi-Ting Liu ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Temperature Dependent ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Framework disorder and its effect on selective hysteretic sorption of a T-shaped azole-based metal–organic framework

IUCrJ ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 85-95 ◽  
Author(s):  
Sujuan Wang ◽  
Zhang-Wen Wei ◽  
Jianyong Zhang ◽  
Long Jiang ◽  
Dingxin Liu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Structural Disorder ◽  
Gas Sorption ◽  
Temperature Dependent ◽  
Disordered Structure ◽  
Metal Organic ◽  
First Time ◽  
Organic Framework

Metal–organic frameworks with highly ordered porosity have been studied extensively. In this paper, the effect of framework (pore) disorder on the gas sorption of azole-based isoreticular Cu(II) MOFs with rtl topology and characteristic 1D tubular pore channels is investigated for the first time. In contrast to other isoreticular rtl metal–organic frameworks, the Cu(II) metal–organic framework based on 5-(1H-imidazol-1-yl)isophthalate acid has a crystallographically identifiable disordered framework without open N-donor sites. The framework provides a unique example for investigating the effect of pore disorder on gas sorption that can be systematically evaluated. It exhibits remarkable temperature-dependent hysteretic CO2 sorption up to room temperature, and shows selectivity of CO2 over H2, CH4 and N2 at ambient temperature. The unique property of the framework is its disordered structure featuring distorted 1D tubular channels and DMF-guest-remediated defects. The results imply that structural disorder (defects) may play an important role in the modification of the performance of the material.

scholarly journals Dual Emission in a Ligand and Metal Co-Doped Lanthanide-Organic Framework: Color Tuning and Temperature Dependent Luminescence

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 523 ◽  
Author(s):  
Despoina Andriotou ◽  
Stavros A. Diamantis ◽  
Anna Zacharia ◽  
Grigorios Itskos ◽  
Nikos Panagiotou ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Metal Organic Framework ◽  
Lanthanide Ions ◽  
Temperature Dependent ◽  
Dual Emission ◽  
Bridging Ligands ◽  
Color Tuning ◽  
Metal Organic ◽  
Lanthanide Metal ◽  
Organic Framework

In this study, we report the luminescence color tuning in the lanthanide metal-organic framework (LnMOF) ([La(bpdc)Cl(DMF)] (1); bpdc2− = [1,1′-biphenyl]-4,4′-dicarboxylate, DMF = N,N-dimethylformamide) by introducing dual emission properties in a La3+ MOF scaffold through doping with the blue fluorescent 2,2′-diamino-[1,1′-biphenyl]-4,4′-dicarboxylate (dabpdc2−) and the red emissive Eu3+. With a careful adjustment of the relative doping levels of the lanthanide ions and bridging ligands, the color of the luminescence was modulated, while at the same time the photophysical characteristics of the two chromophores were retained. In addition, the photophysical properties of the parent MOF (1) and its doped counterparts with various dabpdc2−/bpdc2− and Eu3+/La3+ ratios and the photoinduced energy transfer pathways that are possible within these materials are discussed. Finally, the temperature dependence study on the emission profile of a doped analogue containing 10% dabpdc2− and 2.5% Eu3+ (7) is presented, highlighting the potential of this family of materials to behave as temperature sensors.

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