Sensing properties, energy transfer mechanism and tuneable particle size processing of luminescent two-dimensional rare earth coordination networks

Godoy, Agustín; Gómez, Germán E.; Kaczmarek, Anna; Deun, Rik Van; Furlong, Octavio Javier; Gándara, Felipe; Monge, Ángeles; Bernini, María Celeste; Narda, Griselda E.

doi:10.1039/c7tc04006g

Cited by 15 publications

(23 citation statements)

References 73 publications

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“…Comparing with the FTIR spectrum of the net PATC (Figure b), the intensity of the anti‐stretching vibration peak at 1448 cm −1 , which was produced by p‐methylbenzoic acid coordination with Tb 3+ ions, is weakened after the PATC adsorbed acid gas. The stretching vibration peak at 1623 cm −1 is not significantly changed.…”

Section: Resultsmentioning

confidence: 97%

Structure and Properties of PET Nano‐Porous Luminescence Fibers for Fluorescence‐Indicating to Acid Gases

Shu

Xia

et al. 2019

Macro Materials & Eng

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This work describes the fluorescence‐indicating function to trace acid gases of polyethylene terephthalate (PET) nano‐porous luminescence fibers (PNPLFs) through the analysis of correlation between the concentration of acid gas and fluorescence intensity of organic rare earth complexes dispersed uniformly in the PET nano‐porous structured fibers. The porous structure and large specific surface area of the PET nano‐fibers prepared through electrospinning technology offer the strong adhesive force and good absorption efficiency of PET nano‐porous fibers to acid gases. The fast response ability of benzoic acid organic rare earth complexes to pH value gives the PET nano‐porous luminescence fibers fluorescence‐indicating function to acid gas. Under dry state and in situ conditions, the fluorescence‐indicating to acid gases of PET nano‐porous luminescence fibers can be completed in 10 s. The precise value is 1 ppm. At the same time, repeated cycling experiments show that the PET nano‐porous luminescence fibers have good recycling property, and the recycling life can increase 40‐fold. Coupled with the good mechanical performances that the breaking strength achieves 121.6 cN, the PET nano‐porous luminescence fibers have better potential in the fluorescence‐indicating to acid gases.

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Section: Resultsmentioning

confidence: 97%

Structure and Properties of PET Nano‐Porous Luminescence Fibers for Fluorescence‐Indicating to Acid Gases

Shu

Xia

et al. 2019

Macro Materials & Eng

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“…In the case of employing succinic acid and salicylic acid as a mixed ligand system and Ho 3+ ion, 2D or 3D frameworks can be obtained depending on the synthesis conditions. For example, a 3D structure where the succinate ions play a structural role whereas a template one was determined for the salicylic acid, was firstly obtained by us .…”

Section: Structural and Topological Revisionmentioning

confidence: 99%

“…This structure could be prepared either by in situ hydrolysis of succinylsalicylic acid or by adding succinic and salicylic acids in the reaction mixture; different times and temperatures of synthesis were rigorously probed to get the desired pure phase. Changing these variables, the reaction can be driven to a 2D hybrid structure in which both acids act as ligands in the coordination sphere of the Ho 3+ . This layered structure was selected by us recently to study the influence of an aliphatic and an aromatic ligand in the same framework.…”

Section: Structural and Topological Revisionmentioning

confidence: 99%

“…Regarding the Y‐succ‐slc family, the PL activity from cryogenic to RT was explored for compounds [Y 0.9354 Tb 0.0648 (slc)(succ) 0.5 (H 2 O)] and [Y 0.951 Eu 0.0248 Tb 0.0242 (slc)(succ) 0.5 (H 2 O)] in terms of fluorescence intensity ratio (FIR), considering the 5 D 4 → 7 F J Tb 3+ hypersensitive transition. The FIR of the former compound in the range 10–310 K is characterised by a non‐linear and non‐exponential decrease (Figure ‐bottom left) while that of the latter one exhibits a quite striking behaviour since it suffers an exponential increase in the 10–110 K range, followed by an almost linear decrease between 110 and 270 K (Figure ‐bottom right).…”

Section: Photoluminescence (Pl) and Catalytic Propertiesmentioning

confidence: 99%

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Reviewing Rare Earth Succinate Frameworks from the Reticular Chemistry Point of View: Structures, Nets, Catalytic and Photoluminescence Applications

Bernini

Gómez

Brusau

et al. 2018

Israel Journal of Chemistry

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The intense development that Metal-Organic Frameworks have experienced along the last two decades, reflects the interest on these compounds as a new generation of multifunctional materials with diverse applications. The first works of Prof. Omar Yaghi devoted to obtain open frameworks by combining rigid aromatic linkers and a variety of metal centers, encouraged the creativity of the scientific community to designcoordination polymers employing aliphatic ligands as multitopic building blocks . Here, a revision of the literature dedicated to rare earth coordination networks mainly based in succinate ligand and derivatives is performed. A structural analysis of 2D and 3D frameworks based on rare earth elements and succinate, was carried out considering their inner connectivities and topologies with focus on those compounds with potential photoluminescent and catalytic technological applications. Thus, a variety of optical behaviours regarding the emission mechanisms, colours, lifetimes, quantum yields as well as chemical/ thermal sensing properties are presented and compared with related phases found in literature. The catalytic performance of several rare earth-succinates in three important reactions is discussed in terms of their acidity, dimensionality and available active centers towards the formation of the desired products analysing parameters such as selectivity, yields and TOFs.

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“…In addition, a 1D framework was recently obtained by us and studied as a chemical sensor towards Volatile Organic Compounds (VOCs) with excellent results [ 28 ]. Moreover, a new 2D mixed phase doped with Eu and Tb was synthesized and tested as a chemosensor for small molecules showing selectivity towards carbonyl compounds [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Luminescent Lanthanide Metal Organic Frameworks as Chemosensing Platforms towards Agrochemicals and Cations

Gómez

Afonso

Baldoni

et al. 2019

Sensors

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Since the first studies of luminescent sensors based on metal organic frameworks (MOFs) about ten years ago, there has been an increased interest in the development of specific sensors towards cations, anions, explosives, small molecules, solvents, etc. However, the detection of toxic compounds related to agro-industry and nuclear activity is noticeably scarce or even non-existent. In this work, we report the synthesis and characterization of luminescent lanthanide-based MOFs (Ln-MOFs) with diverse crystalline architectures obtained by solvothermal methods. The luminescent properties of the lanthanides, and the hypersensitive transitions of Eu3+ (5D0→7F2) and Tb3+ (5D4→7F5) intrinsically found in the obtained MOFs in particular, were evaluated and employed as chemical sensors for agrochemical and cationic species. The limit of detection (LOD) of Tb-PSA MOFs (PSA = 2-phenylsuccinate) was 2.9 ppm for [UO22+] and 5.6 ppm for [Cu2+]. The variations of the 4f–4f spectral lines and the quenching/enhancement effects of the Ln-MOFs in the presence of the analytes were fully analyzed and discussed in terms of a combinatorial “host–guest” vibrational and “in-silico” interaction studies.

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Sensing properties, energy transfer mechanism and tuneable particle size processing of luminescent two-dimensional rare earth coordination networks

Abstract: A new family of luminescent 2D coordination networks: energy pathways for sensitization mechanisms and chemical–physical sensing features.

Cited by 15 publications

References 73 publications

Structure and Properties of PET Nano‐Porous Luminescence Fibers for Fluorescence‐Indicating to Acid Gases

Structure and Properties of PET Nano‐Porous Luminescence Fibers for Fluorescence‐Indicating to Acid Gases

Reviewing Rare Earth Succinate Frameworks from the Reticular Chemistry Point of View: Structures, Nets, Catalytic and Photoluminescence Applications

Luminescent Lanthanide Metal Organic Frameworks as Chemosensing Platforms towards Agrochemicals and Cations

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