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Bedi M, Dhankhar P, Taxak VB, Khatkar SP, Doon PB. Structural Insights and Photophysical Screening of Sm (III) Complexes with Heterocyclic Ligand for Optical Applications. J Fluoresc 2023:10.1007/s10895-022-03064-4. [PMID: 36701083 DOI: 10.1007/s10895-022-03064-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 11/01/2022] [Indexed: 01/27/2023]
Abstract
Five novel bright orange color emitting Sm(III) complexes (C1-C5) have been synthesized via energy efficient and cost effective solution precipitation method with 5-phenyl 2-furoic acid as primary organic sensitizer and nitrogen donor neocuproine, 2, 2- bipyridyl, bathophenanthroline, and 1,10-phenanthroline as secondary ligands. All the newly synthesized metal complexes are thoroughly characterize to examine the appropriateness of the organic ligand for the sensitization process. All the outcomes of the various advanced and fundamental spectroscopic techniques validate the bonding of carboxylate group with the Sm(III) ion. The luminescence spectra reflects the dominance of magnetic dipole transition which designate the occurrence of harmonized chemical environment in the coordination sphere which is further validated by enhanced values of intensity ratio. These complexes possess suitable thermal stability with excellent photoluminescent features as confirmed by thermogravimetric analysis and photoluminescence studies. The luminescence lifetime of samarium complexes [C2-C5] is relatively long due to the synergistic effect presented by ancillary ligands. The emission color of the synthesized complexes show shift from orange to bright orange red color which is displayed through CIE color coordinates.
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Affiliation(s)
- Manisha Bedi
- Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India
| | - Priyanka Dhankhar
- Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India
| | - V B Taxak
- Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India
| | - S P Khatkar
- Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India
| | - Priti Boora Doon
- Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India.
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2
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Punia M, Dhankhar P, Dua N, Taxak V, Khatkar S, Boora Doon P. High photometric and spectroscopic features of emerald light emitter terbium (III) β-Ketoester functionalised complexes for modern lighting devices. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2022.121225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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3
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Luminous lanthanide diketonates: Review on synthesis and optoelectronic characterizations. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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4
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Exploration of photophysical and biological attributes of red light emitting europium (III) chelates with β-keto acid and nitrogen donor ancillary ligands. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04866-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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5
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Augmentation of photophysical features and Judd-Ofelt analysis of extensively green glowing terbium (III) complexes with nitrogen donor ancillary ligands. PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES : OFFICIAL JOURNAL OF THE EUROPEAN PHOTOCHEMISTRY ASSOCIATION AND THE EUROPEAN SOCIETY FOR PHOTOBIOLOGY 2022; 21:2011-2034. [PMID: 35932374 DOI: 10.1007/s43630-022-00275-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 07/18/2022] [Indexed: 10/15/2022]
Abstract
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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Synthesis and photosensitization study of red luminescent europium (III) complexes with heterocyclic ligands for application in OLEDs. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109720] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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7
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Bedi M, Punia M, Devi R, Taxak V, Khatkar S, Boora Doon P. Photophysical investigations of red light emanating Eu(III) complexes with dioxoester functionalized ligand for optoelectronic applications. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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8
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Bedi M, Punia M, Taxak VB, Khatkar SP, Doon PB. Investigations into spectroscopic and optoelectronic behavior of furoic acid based Eu (III) complexes for advanced photonic applications. LUMINESCENCE 2022; 37:1098-1108. [PMID: 35445794 DOI: 10.1002/bio.4263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 12/01/2021] [Accepted: 12/16/2021] [Indexed: 11/07/2022]
Abstract
For illuminising the zone of organic light-emitting diodes, a novel series containing four red luminescent europium complexes, one binary (C1) and three ternary (C2-C4), of 5-phenyl 2-furoic acid (PFA) has been synthesized with 2,2'-bipyridyl (bipy), bathophenanthroline (batho) and 1,10-phenanthroline (phen) as ancillary ligands and characterized by adopting various analytical techniques. All the findings of EDAX, elemental (CHN) analysis, FT-IR, NMR, UV-visible spectroscopy assures the coordination of ligand binding sites with the europium ion. To evaluate the thermal stability, TG/DTG measurements are taken which reveals that the synthesized complexes are stable up to 245 0 C. Diffused reflectance studies indicate that these complexes bear potential for their use in wide band gap semiconductors (WBGs). Since all the four complexes show metal-centered luminescence as a characteristic red emission peak which is observed at 613 nm under the excitation wavelength of 330 nm. The internal quantum efficiencies and luminescence lifetime of complexes are predicted by using Judd-Ofelt and photo physical data. The monoexponential luminescence decay and Judd-Ofelt analysis suggests the presence of single and asymmetric chemical environment in the coordination sphere of europium metal. The CIE colour coordinates, CCT values and color purity of the complexes validate their red emission in the visible region.
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Affiliation(s)
- Manisha Bedi
- Department of Chemistry, Maharshi Dayanand University, Rohtak, India
| | - Monika Punia
- Department of Chemistry, Maharshi Dayanand University, Rohtak, India
| | - Vinod Bala Taxak
- Department of Chemistry, Maharshi Dayanand University, Rohtak, India
| | | | - Priti Boora Doon
- Department of Chemistry, Maharshi Dayanand University, Rohtak, India
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Kamel RM, Mohamed SK, Mahmoud MA. High-throughput sensor microtiter plate of new terbium complexes for the determination of anthracene in seawater. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 266:120474. [PMID: 34689088 DOI: 10.1016/j.saa.2021.120474] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/24/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
A new fluorescent sensing microtiter plate (MTP) was developed for high sensitivity monitoring of anthracene in seawater samples. For this purpose, two ternary complexes of Tb(III) ions with dibenzoylmethane and neocuproine [Tb(DBM)2(MePhen)] or with dibenzoylmethane and bathocuproine [Tb(DBM)2(PhMePhen)] were synthesized. Elemental analysis, energy dispersive X-ray analysis, X-ray diffraction, infrared and ultraviolet-visible emission, and thermal analysis were conducted on the Tb(III) complexes. The limits of detection (DL) were 0.14 and 1.05 μmol L-1 for [Tb(DBM)2(MePhen)] and [Tb(DBM)2(PhMePhen)], respectively. [Tb(DBM)2(PhMePhen)] MTP is embedded in a membrane made of cellulose acetate. The first high-throughput anthracene sensor MTP, based on [Tb(DBM)2(PhMePhen)] sensor showed a linear range, from 0.2 to 20 μmol L-1. [Tb(DBM)2(PhMePhen)] MTP was validated for accurate and precise monitoring of anthracene using gas chromatography. The selectivity of the [Tb(DBM)2(PhMePhen)] MTP toward anthracene was examined. The data indicated that [Tb(DBM)2(PhMePhen)] MTP is suitable for rapid and direct detection of anthracene.
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Affiliation(s)
- Rasha M Kamel
- Suez University, Faculty of Science, Chemistry Department, 43518 Suez, Egypt.
| | - Shaimaa K Mohamed
- Suez University, Faculty of Science, Chemistry Department, 43518 Suez, Egypt
| | - Marwa A Mahmoud
- Suez University, Faculty of Petroleum and Mining Engineering, Science and Mathematics Department, Suez, Egypt
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Hooda P, Taxak VB, Malik RK, Khatri S, Kumari P, Khatkar SP, Kumar R. Applicability of Reddish-Orange Light Emitting Samarium (III) Complexes for Biomedical and Multifunctional Optoelectronic Devices. J Fluoresc 2022; 32:613-627. [PMID: 35020114 DOI: 10.1007/s10895-021-02887-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 12/29/2021] [Indexed: 12/16/2022]
Abstract
Six crimson samarium (III) complexes based on β-ketone carboxylic acid and ancillary ligands were synthesized by adopting the grinding technique. All synthesized complexes were investigated via 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 4G5/2 → 6H7/2 electronic transition at 606 nm of samarium (III) ions. Further, energy bandgap, color purity, CIE color coordinates, CCT and quantum yield of all complexes were determined accurately. Replacement of water molecules by ancillary ligands enriched these complexes (S2-S6) with decay time, quantum yield, luminescence, energy bandgap and biological properties than parent complex (S1). Interestingly, these efficient properties of complexes may find their applications in optoelectronics and lighting systems. In addition to these, the antioxidant and antimicrobial assays were also investigated to explore the applications in biological assays.
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Affiliation(s)
- Pooja Hooda
- Department of Chemistry, Maharshi Dayanand University, Rohtak - 124001, India
| | - V B Taxak
- Department of Chemistry, Maharshi Dayanand University, Rohtak - 124001, India
| | - R K Malik
- Department of Chemistry, Maharshi Dayanand University, Rohtak - 124001, India
| | - Savita Khatri
- University Institute of Engineering and Technology, Maharshi Dayanand University, Rohtak - 124001, India
| | - Poonam Kumari
- University Institute of Engineering and Technology, Maharshi Dayanand University, Rohtak - 124001, India
| | - S P Khatkar
- Department of Chemistry, Maharshi Dayanand University, Rohtak - 124001, India
| | - Rajesh Kumar
- University Institute of Engineering and Technology, Maharshi Dayanand University, Rohtak - 124001, India.
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11
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Punia M, Khatkar SP, Taxak VB, Dhankhar P, Boora Doon P. Synthesis of cool white light emitting novel dysprosium (Dy 3+ ) complexes with tetradentate β-ketoamide and heterocyclic auxiliary ligands. LUMINESCENCE 2021; 36:1209-1219. [PMID: 33780141 DOI: 10.1002/bio.4046] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/16/2021] [Accepted: 03/25/2021] [Indexed: 11/08/2022]
Abstract
To improve current multiphase white light emitting diodes (WLEDs), a novel series of five complexes consisting of one binary and four ternary complexes that emitted cool white light was successfully synthesized using a chelating tetradentate ligand and auxiliary ligands, i.e. 5,6-dimethyl-1,10-phenanthroline, 1,10-phenanthroline, 4,4'-dimethyl-2,2'-bipyridyl, and 2,2'-bipyridyl. The series was examined structurally using elemental analysis, Fourier transform infrared spectroscopy, energy dispersive X-ray analysis, ultraviolet-visible spectroscopy, and proton nuclear magnetic resonance spectroscopy. These complexes had the appropriate thermal stability required for the generation of white organic LEDs (WOLEDs). Dysprosium (III) (Dy3+ ) ion complexes demonstrated the characteristic emission peaks of blue colour at 482 nm and yellow colour at 572 nm, respectively, when excited using near ultraviolet light. Band gap, refractive index, and decay lifetime of the optimized samples were recorded as 2.68 eV, 2.12, and 1.601 ms, respectively. Correlated colour temperature value (7875 K), Commission International de l'Eclairage coordinates (0.300, 0.294), and colour purity (21.04 × 10-2 ) of the optimized complex were near to those of white illuminants as defined by the National Television System Committee. These complexes had promise as commercial LEDs for the advanced optoelectronics devices, especially as WOLEDs for illumination applications.
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Affiliation(s)
- Monika Punia
- Department of Chemistry, Maharshi Dayanand University, Rohtak, India
| | | | - Vinod Bala Taxak
- Department of Chemistry, Maharshi Dayanand University, Rohtak, India
| | - Priyanka Dhankhar
- Department of Chemistry, Maharshi Dayanand University, Rohtak, India
| | - Priti Boora Doon
- Department of Chemistry, Maharshi Dayanand University, Rohtak, India
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12
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Khanagwal J, Kumar R, Devi R, Bala M, Sehrawat P, Khatkar SP, Taxak VB. Photoluminescence performance of green light emitting terbium (III) complexes with β-hydroxy ketone and nitrogen donor ancillary ligands. LUMINESCENCE 2020; 36:742-754. [PMID: 33341108 DOI: 10.1002/bio.3998] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/07/2020] [Accepted: 12/17/2020] [Indexed: 11/10/2022]
Abstract
An efficient and cost-effective technique, solution precipitation approach is adopted to synthesize five bright green luminescent terbium (III) complexes by employing the main β-hydroxy ketone ligand, 2-hydroxy-4-ethoxyacetophenone, and ancillary ligands like bathophenanthroline, 5,6-dimethyl-1,10-phenanthroline, 1,10-phenanthroline, and 2,2-bipyridyl. The elemental compositions and binding mode of ligand to terbium (III) ion can be validated by using energy dispersive X-ray analysis, elemental analysis, Fourier transform infrared, and proton nuclear magnetic resonance spectroscopy. The complexes are thermally stable up to 158°C and possess the cubic shaped particles as confirmed by thermogravimetric analysis and scanning electron microscopic study, respectively. The band-gap energy (3.02-2.92 eV) of complexes is reckoned through diffuse reflectance spectra, which tailors them as potential candidates in the field of military radars. The photoluminescence studies unveil that the complexes exhibit the bright green luminescence corresponding to 5 D4 → 7 F5 transition of Tb3+ ion (548 nm) under the excitation wavelength of 395 or 397 nm. The Commission International de I'Eclairage chromaticity coordinates (x, y) and color purity substantiates the green emission of complexes. The energy transfer mechanism elucidates that the main ligand and ancillary ligands sensitize Tb3+ ion, which in turn enhances the luminescence efficiency of the emissive layer of white organic light emitting diodes. The results reveal that the complexes are considered as good contenders in the field of display devices and laser technology. Lastly, in vitro antimicrobial and antioxidant activity proclaim the potent antimicrobial and antioxidant actions of complexes via tube dilution and 2, 2-diphenyl-1-picrylhydrazyl assays, respectively.
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Affiliation(s)
- Jyoti Khanagwal
- Department of Chemistry, Maharshi Dayanand University, Rohtak, India
| | - Rajesh Kumar
- University Institute of Engineering and Technology (UIET), Maharshi Dayanand University, Rohtak, India
| | - Rekha Devi
- Department of Chemistry, Maharshi Dayanand University, Rohtak, India
| | - Manju Bala
- Department of Chemistry, Maharshi Dayanand University, Rohtak, India
| | - Priyanka Sehrawat
- Department of Chemistry, Maharshi Dayanand University, Rohtak, India
| | - S P Khatkar
- Department of Chemistry, Maharshi Dayanand University, Rohtak, India
| | - V B Taxak
- Department of Chemistry, Maharshi Dayanand University, Rohtak, India
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Kurzajewska M, Kwiatek D, Kubicki M, Brzezinski B, Hnatejko Z. New complexes of 2-(4-pyridyl)-1,3-benzothiazole with metal ions; synthesis, structural and spectral studies. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.03.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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