Syntheses, characterization, multi-acid fluorescence sensing and electroluminescence properties of Cr(<scp>ii</scp>)-based metallopolymers

Kumar, Anil; Bawa, Shubham; Ganorkar, Kapil; Ghosh, Sujit Kumar; Bandyopadhyay, Anasuya

doi:10.1039/d0py00953a

Cited by 8 publications

(12 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…TGA analysis of the polymer was done in the nitrogen atmosphere in between 30 and 800°C temperature range. This polymer has shown three steps mass loss curve (Figure 7b) while its analogue polymers of Fe(II)‐ and Cr(II)‐ have shown two and single‐step mass loss thermograms 13,20 . This thermogram clearly shows that the thermal stability of Al(III)‐FNL poly is much lower than either of its previously reported counterparts.…”

Section: Resultsmentioning

confidence: 80%

“…So, the properties of the metallopolymers can be tuned by tuning the functional group in the organic structure and the change in metal ion in the inorganic part, which changes the electronic, magnetic, and optical properties of functional materials 5–10 . These metallopolymers contain various metals as metal centers from main groups; such as Sn, Pb, a large variety of transition‐metal ions like Fe, Zn, Cu, Co, Pt, Ru, Os, Cr, and lanthanides like Eu and Tb 11–22 . Different non‐covalent interactions are often observed in these materials, like host‐guest interaction, π‐π stacking, and hydrogen‐bonding interactions, either in the backbone or side‐chain functional group present in the ligand with metal ions 23–25 .…”

Section: Introductionmentioning

confidence: 99%

“…The field of memristive materials is revolutionizing daily with different metallopolymers to overcome the requirement of fast data processing, low power consumption, and miniaturization of the device size, which has triggered the storing of a huge amount of information in a small area 12,16,18,21 . This report aimed to synthesize the novel metallopolymer for the application of memristive materials with the most abundant trivalent Al(III) metal ion with our reported ligand 13,20 . The objective behind the selection of Al(III) metal ion was to explore the strength of coordination interaction of the main group metal ion with the flexible neutral ligand (FNL).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis and characterization of novel Al(III)‐metallopolymer and its application as a non‐volatile resistive memristive material

Kumar

Bawa

Bera

et al. 2022

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

In this study, Al(III)-metallopolymer is synthesized with our previously reported ligand to understand the difference in the interaction of the reported ligand with transition metal ions (Fe(II) and Cr(II) ions) and smaller cationic radius main group metal ion. Al(III)-metallopolymer is thoroughly characterized by different analytical techniques to understand the structure-property relationship. Surface morphological analyses reveal the formation of long nano-fiber strands on the respective substrates. This polymer has shown reversible redox behavior, which is ligand centric as no d-orbitals are available on the central metal ion for the electron push-pull mechanism. Al(III)metallopolymer is fluorescent active, and it is shown a reversible change in absorption spectrum on the application of the appropriate potential. This ligand-based redox-switching also generates a bistable state when a metalinsulator(thin film of polymer)-metal sandwich device is probed in between ±1 V, and it is stable in the ambient condition to sustain several flip-flop cycles without any degradation for 10 3 s as observed from the experimental data. This work enlightens a new metallopolymer with a low value of SET-RESET voltage and a long retention time for the future memristive device, which can operate at very low voltage compared to conventional Si-based memory chips.

show abstract

Section: Resultsmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and characterization of novel Al(III)‐metallopolymer and its application as a non‐volatile resistive memristive material

Kumar

Bawa

Bera

et al. 2022

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

show abstract

“…Additional evidence for the formation of supramolecular polymers of generalized structure [ M1 ·Zn(OTf) 2 ] n came from morphology experiments ( 72 ). Scanning electron microscopic (SEM) images of M1 + Zn(OTf) 2 determined at different concentrations of M1 + Zn(OTf) 2 are shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Visualizing molecular weights differences in supramolecular polymers

Zhang

Lou

et al. 2022

Proc. Natl. Acad. Sci. U.S.A.

View full text Add to dashboard Cite

Issues of molecular weight determination have been central to the development of supramolecular polymer chemistry. Whereas relationships between concentration and optical features are established for well-behaved absorptive and emissive species, for most supramolecular polymeric systems no simple correlation exists between optical performance and number-average molecular weight (Mn). As such, the Mn of supramolecular polymers have to be inferred from various measurements. Herein, we report an anion-responsive supramolecular polymer [M1·Zn(OTf)2]n that exhibits monotonic changes in the fluorescence color as a function of Mn. Based on theoretical estimates, the calculated average degree of polymerization (DPcal) increases from 16.9 to 84.5 as the monomer concentration increases from 0.08 mM to 2.00 mM. Meanwhile, the fluorescent colors of M1 + Zn(OTf)2 solutions were found to pass from green to yellow and to orange, corresponding to a red shift in the maximum emission band (λmax). Therefore, a relationship between DPcal and λmax could be established. Additionally, the anion-responsive nature of the present system meant that the extent of supramolecular polymerization could be regulated by introducing anions, with the resulting change in Mn being readily monitored via changes in the fluorescent emission features.

show abstract

“…Organometallic polymers. Metal-containing organic polymers, or organometallic polymers (Nguyen et al, 2018), have a long history for use in sensing (Kumar et al, 2020a), optoelectronics (Onge et al, 2020), and catalysis (Joshi et al, 2020). They have been used as sensors for a variety of analytes (Xu et al, 2017), including pesticides, using a range of transduction mechanisms, including electrochemical (Wang et al, 2020g), colorimetric (Scarano et al, 2019), and Raman spectroscopybased detection (Yan et al, 2019).…”

Section: Fluorescent Polymer-based Pesticide Detectionmentioning

confidence: 99%

Fluorescence-Based Sensing of Pesticides Using Supramolecular Chemistry

Levine

2021

Front. Chem.

View full text Add to dashboard Cite

The detection of pesticides in real-world environments is a high priority for a broad range of applications, including in areas of public health, environmental remediation, and agricultural sustainability. While many methods for pesticide detection currently exist, the use of supramolecular fluorescence-based methods has significant practical advantages. Herein, we will review the use of fluorescence-based pesticide detection methods, with a particular focus on supramolecular chemistry-based methods. Illustrative examples that show how such methods have achieved success in real-world environments are also included, as are areas highlighted for future research and development.

show abstract

Syntheses, characterization, multi-acid fluorescence sensing and electroluminescence properties of Cr(ii)-based metallopolymers

Abstract: Two novel Cr(II) based metallosupramolecular polymers have been synthesized with two ditopic rigid and flexible ligands in identical reaction conditions. The confirmation of the structure of both the polymers and...

Cited by 8 publications

References 55 publications

Synthesis and characterization of novel Al(III)‐metallopolymer and its application as a non‐volatile resistive memristive material

Synthesis and characterization of novel Al(III)‐metallopolymer and its application as a non‐volatile resistive memristive material

Visualizing molecular weights differences in supramolecular polymers

Fluorescence-Based Sensing of Pesticides Using Supramolecular Chemistry

Contact Info

Product

Resources

About