Efficient luminescence sensing in two lanthanide metal-organic frameworks with rich uncoordinated Lewis basic sites

CrystEngComm ◽  
2021 ◽  
Author(s):  
Liming Deng ◽  
Huihui Zhao ◽  
Kang Liu ◽  
Dingxuan Ma
Keyword(s):  
Environmental Contaminants ◽  
Metal Organic Frameworks ◽  
Three Dimensional ◽  
Basic Sites ◽  
Highly Sensitive ◽  
Metal Organic ◽  
Lanthanide Metal

Developing highly sensitive MOF-based probes for environmental contaminants detection is of much importance and challenging. Here, two new three-dimensional lanthanide metal-organic frameworks (Ln-MOFs), {[Eu(DTA)1.5(H2O)]·H2O}n (Eu-DTA) and [Tb(DTA)(C2O4)0.5(H2O)]n (Tb-DTA) (H2DTA =...

Complex three-dimensional lanthanide metal–organic frameworks with variable coordination spheres based on pyrazine-2,3,5,6-tetracarboxylate

CrystEngComm ◽  
2015 ◽  
Vol 17 (29) ◽  
pp. 5377-5388 ◽  
Author(s):  
Conrad W. Ingram ◽  
Geoffrey Kibakaya ◽  
John Bacsa ◽  
Stephan R. Mathis,II ◽  
Alvin A. Holder ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Three Dimensional ◽  
Metal Organic ◽  
Lanthanide Metal ◽  
Coordination Spheres ◽  
Variable Coordination

An open 3-D MOF with complex connectivity of multi-topic pyrazine-2,3,5,6-tetracarboxylate linker and Ln(iii) ions.

scholarly journals Optimization of Cost-Effective and Reproducible Flexible Humidity Sensors Based on Metal-Organic Frameworks

Sensors ◽  
2020 ◽  
Vol 20 (23) ◽  
pp. 6981
Author(s):  
Victor Toral ◽  
Florin C. Loghin ◽  
Antonio Rodríguez-Diéguez ◽  
Alejandro Lapresta-Fernández ◽  
Diego P. Morales ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Three Dimensional ◽  
Cost Effective ◽  
Film Deposition ◽  
Flexible Substrates ◽  
Humidity Sensors ◽  
Cost Effective Method ◽  
Highly Sensitive ◽  
Metal Organic

In this letter, we present the extension of a previous work on a cost-effective method for fabricating highly sensitive humidity sensors on flexible substrates with a reversible response, allowing precise monitoring of the humidity threshold. In that work we demonstrated the use of three-dimensional metal-organic framework (MOF) film deposition based on the perylene-3,4,9,10-tetracarboxylate linker, potassium as metallic center and the interspacing of silver interdigitated electrodes (IDEs) as humidity sensors. In this work, we study one of the most important issues in efficient and reproducible mass production, which is to optimize the most important processes’ parameters in their fabrication, such as controlling the thickness of the sensor’s layers. We demonstrate this method not only allows for the creation of humidity sensors, but it also is possible to change the humidity value that changes the actuator state.

Lanthanide metal–organic frameworks assembled from a fluorene-based ligand: selective sensing of Pb2+ and Fe3+ ions

2016 ◽  
Vol 4 (9) ◽  
pp. 1900-1905 ◽  
Author(s):  
Liang Li ◽  
Qiang Chen ◽  
Zhigang Niu ◽  
Xinhui Zhou ◽  
Tao Yang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fluorescence Enhancement ◽  
Metal Organic Frameworks ◽  
Neutral Network ◽  
Static Quenching ◽  
Highly Sensitive ◽  
Metal Organic ◽  
Sensitive Sensor ◽  
Lanthanide Metal

A series of fluorene-based Ln-MOFs with 3D neutral network are reported. Eu-MOF can act as the highly sensitive sensor to Pb2+ and Fe3+ ions in aqueous solution by fluorescence enhancement and quenching, respectively. The dynamic and static quenching constants of Fe3+ are obtained.

scholarly journals Divergent Adsorption-Dependent Luminescence of Amino-Functionalized Lanthanide Metal–Organic Frameworks for Highly Sensitive NO2 Sensors

2020 ◽  
Vol 11 (9) ◽  
pp. 3362-3368 ◽  
Author(s):  
Arturo Gamonal ◽  
Chen Sun ◽  
A. Lorenzo Mariano ◽  
Estefania Fernandez-Bartolome ◽  
Elena Guerrero-SanVicente ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Highly Sensitive ◽  
Metal Organic ◽  
Lanthanide Metal

Structural Diversity of Four Lanthanide Metal-Organic Frameworks based on 2,6-Naphthalenedicarboxylate: Synthesis, Structures and Photoluminescent Properties

CrystEngComm ◽  
2021 ◽  
Author(s):  
Ana Chatenever ◽  
Joe E Matsuoka ◽  
Stanley J Wang ◽  
Beatriz Ehlke ◽  
Pierre LeMagueres ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Metal Organic Frameworks ◽  
Three Dimensional ◽  
Structural Diversity ◽  
Metal Organic ◽  
Lanthanide Metal ◽  
Organic Linker

We report the crystal structures of four different neutral lanthanide (Ln = La, Nd, Eu and Gd) metal-organic frameworks based on the organic linker 2,6-naphthalenedicarboxylate (NDC). The materials are three-dimensional...

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