Preparation and optical features of samarium(III) complexes introducing bidentate fluorinate and secondary ligands

Chauhan, Archana; Langyan, Ritu

doi:10.1007/s10854-020-04711-x

Cited by 19 publications

(5 citation statements)

References 39 publications

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“…The decay time of complexes purses single exponential behaviour which is responsible for homogenous coordination environment and single luminescent centre around central metal ion. Quantum yield is an important parameter, utilized to observe the luminescence of samarium (III) ion in complexes [34].…”

Section: Luminescence Decay Curves and Quantum Yieldmentioning

confidence: 99%

“…Further, an important parameter CCT (correlated color temperature) helps to investigation the quality and nature of light emitted from a light source. Depending on their CCT values, the complexes are cool light source (above 4000K), warm light source (below 3200K) and neutral light source (3200-4000K) [34]. The CCT can be evaluated by applying the Mc-Camy equation: CCT = -437 n 3 + 3601n 2 -6861n + 5514.31 (10) Where n can be written as:…”

Section: Colorimetric Analysismentioning

confidence: 99%

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Applicability of Reddish-Orange Light Emitting Samarium (III) Complexes for Biomedical and Multifunctional Optoelectronic Devices

et al. 2022

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Six crimson samarium (III) complexes based on β-ketone carboxylic acid and ancillary ligands were synthesized by adopting grinding technique. All synthesized complexes were investigated via employing elemental analysis, infrared, UV-Vis, NMR, TG/DTG and photoluminescence studies. Optical properties of these photostimulated samarium (III) complexes exhibit reddish-orange luminescence due to 4 G 5/2 → 6 H 7/2 transition at 606 nm of samarium (III) ions.Further, energy band gap, color purity, CIE color coordinates, CCT and quantum yield of all complexes were determined accurately. Replacement of water molecules by ancillary ligands enriched the complexes (S2-S6) with decay time, quantum yield, luminescence, energy band gap and biological properties than parent complex (S1). Interestingly, these e cient properties of complexes may nd their applications in optoelectronic and lighting systems. In addition to these the antioxidant and antimicrobial assays were also investigated to explore the application in biological assays.

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Section: Luminescence Decay Curves and Quantum Yieldmentioning

confidence: 99%

Section: Colorimetric Analysismentioning

confidence: 99%

Applicability of Reddish-Orange Light Emitting Samarium (III) Complexes for Biomedical and Multifunctional Optoelectronic Devices

et al. 2022

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“…Nowadays, lanthanide complexes are rapidly acquiring popularity due to their fabulous applications such as organic light-emitting diodes (OLEDs), flat lighting displays, biomedical analysis, coordination chemistry, fluorescence labels, and electroluminescence due to unique photophysical properties such as high color purity, long lifetime, sharp line like emission, and large stoke's shift [1][2][3][4]. Among lanthanides, especially europium, terbium, and samarium complexes have unique photophysical properties caused by intraconfigurational f-f transitions between emissive levels [5].…”

Section: Introductionmentioning

confidence: 99%

Augmentation of photophysical features and Judd–Ofelt analysis of extensively green glowing terbium (III) complexes with nitrogen donor ancillary ligands

Hooda

Taxak

Malik

et al. 2022

Photochem Photobiol Sci

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Six green glowing terbium (III) complexes were fabricated via grinding method utilizing a prime organic ligand (L) and nitrogen donor ancillary ligands. Characterization of synthesized complexes was accomplished through various spectroscopic techniques. The significant thermal stability was determined by thermogravimetric analysis while the energy bandgap and Urbach energy were investigated through diffused reflectance spectra of these complexes. The peak observed at 548 nm in emission spectra is responsible for the virescent color of these complexes. Color purity, decay time, quantum yield, and emission intensities of ternary complexes were significantly improved as compared to binary ones due to the synergistic effect of ancillary ligands. Judd-Ofelt parameters were determined by the NIR absorption spectrum, which claims the asymmetric environment around the terbium (III) ion. CCT values advocate the applicability of these complexes in green light-emitting materials as a cool light source. The biological assignments reveal the significance of these complexes as potent antioxidants and antimicrobial agents. The energy transfer process highlights the enhancement of luminescence in these complexes via the synergic effect of ligands. Our investigation portrays that these complexes can be employed in laser technology, display devices, semiconductors, biological fields, and optoelectronic devices.

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“…The residual product formed after decomposition was due to oxides of terbium and samarium. 46–48 The peaks in DTG curves at 267 °C ( T1 ), 275 °C ( T4 ), 308 °C ( S1 ) and 358 °C ( S4 ) support their decomposition pattern.…”

Section: Resultsmentioning

confidence: 81%

Optical, electrochemical and photophysical analyses of heteroleptic luminescent Ln(iii) complexes for lighting applications

et al. 2023

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Preparation and optical features of samarium(III) complexes introducing bidentate fluorinate and secondary ligands

Cited by 19 publications

References 39 publications

Applicability of Reddish-Orange Light Emitting Samarium (III) Complexes for Biomedical and Multifunctional Optoelectronic Devices

Applicability of Reddish-Orange Light Emitting Samarium (III) Complexes for Biomedical and Multifunctional Optoelectronic Devices

Augmentation of photophysical features and Judd–Ofelt analysis of extensively green glowing terbium (III) complexes with nitrogen donor ancillary ligands

Optical, electrochemical and photophysical analyses of heteroleptic luminescent Ln(iii) complexes for lighting applications

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