Lanthanide metal–organic frameworks containing a novel flexible ligand for luminescence sensing of small organic molecules and selective adsorption

2015 ◽  
Vol 3 (24) ◽  
pp. 12777-12785 ◽  
Author(s):  
Xiaoqing Wang ◽  
Liangliang Zhang ◽  
Jie Yang ◽  
Fuling Liu ◽  
Fangna Dai ◽  
...  
Keyword(s):  
Organic Molecules ◽  
Selective Adsorption ◽  
Metal Organic Frameworks ◽  
Small Organic Molecules ◽  
Fluorescent Sensing ◽  
Flexible Ligand ◽  
Metal Organic ◽  
Lanthanide Metal

Lanthanide MOFs with fluorescent sensing and selective adsorption have been synthesized and characterized based on a novel flexible ligand.

scholarly journals Crystal Structure Dependence of the Energy Transfer from Tb(III) to Yb(III) in Metal–Organic Frameworks Based in Bispyrazolylpyridines

Crystals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 69 ◽  
Author(s):  
Paloma Martinez-Martin ◽  
Josefina Perles ◽  
Juan Carlos Rodriguez-Ubis
Keyword(s):  
Crystal Structure ◽  
Energy Transfer ◽  
Organic Molecules ◽  
Metal Organic Frameworks ◽  
Structure Dependence ◽  
Characteristic Emission ◽  
Metal Organic ◽  
Lanthanide Metal ◽  
Coordinated Water ◽  
Luminescent Behavior

Luminescent mixed lanthanide metal−organic framwork (MOF) materials have been prepared from two polyheterocyclic diacid ligands, 2,6-bis(3-carboxy-1-pyrazolyl)pyridine and 2,6-bis(4-carboxy-1-pyrazolyl)pyridine. The crystal structures of the two organic molecules are presented together with the structures for the MOFs obtained by hydrothermal synthesis either with Yb(III) or mixed Tb(III)/Yb(III) ions. Different coordination architectures result from each ligand, revealing also important differences between the lanthanides. The mixed lanthanide metal−organic frameworks also present diverse luminescent behavior; in the case of 2,6-bis(4-carboxy-1-pyrazolyl)pyridine, where no coordinated water is present in the metal environment, Tb(III) and Yb(III) characteristic emission is observed by excitation of the bispyrazolylpyridine chromophore.

Fluorescent sensing and selective adsorption properties of metal–organic frameworks with mixed tricarboxylate and 1H-imidazol-4-yl-containing ligands

2017 ◽  
Vol 46 (28) ◽  
pp. 9022-9029 ◽  
Author(s):  
Zhi-Qiang Liu ◽  
Yue Zhao ◽  
Peng Wang ◽  
Yan-Shang Kang ◽  
Mohammad Azam ◽  
...  
Keyword(s):  
Selective Adsorption ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
Adsorption Properties ◽  
Fluorescent Sensing ◽  
Metal Organic

Herein, two porous metal–organic frameworks have been synthesized and their magnetic, fluorescent sensing, and selective adsorption properties have been investigated.

scholarly journals Recent Advances in Developing Lanthanide Metal–Organic Frameworks for Ratiometric Fluorescent Sensing

2021 ◽  
Vol 8 ◽  
Author(s):  
Tianying Sun ◽  
Yaobin Gao ◽  
Yangyang Du ◽  
Lei Zhou ◽  
Xian Chen
Keyword(s):  
Metal Organic Frameworks ◽  
Fluorescent Sensors ◽  
Lanthanide Ions ◽  
Fluorescent Sensing ◽  
Sensing Systems ◽  
Fluorescent Response ◽  
Metal Organic ◽  
Lanthanide Metal ◽  
Construction Strategies ◽  
Single Emission

Fluorescent probes have attracted special attention in developing optical sensor systems due to their reliable and rapid fluorescent response upon reaction with the analyte. Comparing to traditional fluorescent sensing systems that employ the intensity of only a single emission, ratiometric fluorescent sensors exhibit higher sensitivity and allow fast visual screening of analytes because of quantitatively analyzing analytes through the emission intensity ratio at two or more wavelengths. Lanthanide metal–organic frameworks (LnMOFs) are highly designable multifunctional luminescent materials as lanthanide ions, organic ligands, and guest metal ions or chromophores are all potential sources for luminescence. They thus have been widely employed as ratiometric fluorescent sensors. This mini review summarized the basic concept, optical features, construction strategies, and the ratiometric fluorescent sensing mechanisms of dual-emitting LnMOFs. The review ends with a discussion on the prospects, challenges, and new direction in designing LnMOF-based ratiometric fluorescent sensors.

Multifunctional Metal–Organic Frameworks with Fluorescent Sensing and Selective Adsorption Properties

2016 ◽  
Vol 55 (22) ◽  
pp. 11821-11830 ◽  
Author(s):  
Yu-Ling Li ◽  
Yue Zhao ◽  
Peng Wang ◽  
Yan-Shang Kang ◽  
Qing Liu ◽  
...  
Keyword(s):  
Selective Adsorption ◽  
Metal Organic Frameworks ◽  
Adsorption Properties ◽  
Fluorescent Sensing ◽  
Metal Organic

Lanthanide metal–organic frameworks as selective microporous materials for adsorption of heavy metal ions

2016 ◽  
Vol 45 (22) ◽  
pp. 9193-9200 ◽  
Author(s):  
Abbas Jamali ◽  
Alireza Azhdari Tehrani ◽  
Farzaneh Shemirani ◽  
Ali Morsali
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Selective Adsorption ◽  
Metal Organic Frameworks ◽  
Tricarboxylic Acid ◽  
Microporous Materials ◽  
Metal Organic ◽  
Lanthanide Metal

Four microporous lanthanide metal–organic frameworks (MOFs), namely Ln(BTC)(H2O)(DMF)1.1 (Ln = Tb, Dy, Er and Yb, DMF = dimethylformamide, H3BTC = benzene-1,3,5-tricarboxylic acid), have been used for selective adsorption of Pb(ii) and Cu(ii).

Porous metal–organic frameworks based on 3,6-bis(4-benzoic acid)-N-(4-benzoic acid)carbazole for HPLC separation of small organic molecules

2018 ◽  
Vol 2 (8) ◽  
pp. 1508-1514 ◽  
Author(s):  
Dong-Hui Chen ◽  
Chao Zhuo ◽  
Yue-Hong Wen ◽  
Ling Lin ◽  
Yu-Xiao Zhang ◽  
...  
Keyword(s):  
Particle Size ◽  
Benzoic Acid ◽  
Organic Molecule ◽  
Organic Molecules ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
Hplc Separation ◽  
Small Organic Molecules ◽  
Metal Organic ◽  
Controllable Particle Size

A stable porous MOF with a controllable particle size can be used as an HPLC situational phase for small organic molecule separations.

Luminescence tuning and sensing properties of stable 2D lanthanide metal–organic frameworks built with symmetrical flexible tricarboxylic acid ligands containing ether oxygen bonds

CrystEngComm ◽  
2021 ◽  
Author(s):  
Jiao-Min Wang ◽  
Peng-Feng Zhang ◽  
Jian-Guo Cheng ◽  
Yao Wang ◽  
Lu-Lu Ma ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Tricarboxylic Acid ◽  
Lanthanide Ions ◽  
Ph Sensing ◽  
Sensing Properties ◽  
Flexible Ligand ◽  
Molar Ratios ◽  
Ether Oxygen ◽  
Metal Organic ◽  
Lanthanide Metal

New Ln-MOFs were yielded by a flexible ligand and lanthanide ions. The colors can be regulated by adjusting the molar ratios of Eu3+/Tb3+, showing promising applications in NB sensing, tunable photoluminescence and pH sensing.

scholarly journals UiO-66@SiO2 core–shell microparticles as stationary phases for the separation of small organic molecules

The Analyst ◽  
2017 ◽  
Vol 142 (3) ◽  
pp. 517-524 ◽  
Author(s):  
R. D. Arrua ◽  
A. Peristyy ◽  
P. N. Nesterenko ◽  
A. Das ◽  
D. M. D'Alessandro ◽  
...  
Keyword(s):  
Small Molecules ◽  
Organic Molecules ◽  
Stationary Phases ◽  
Metal Organic Frameworks ◽  
Core Shell ◽  
Small Organic Molecules ◽  
Separation Selectivity ◽  
Metal Organic

Microparticles decorated with metal–organic frameworks exhibited a unique flow-dependent separation selectivity (FDSS) effect for the isocratic separation of small molecules.

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