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Bedi M, Chhillar P, Dhankhar P, Khanagwal J, Taxak VB, Khatkar SP, Doon PB. New Insights into Optoelectronic Features of Eu(III) Complexes with Heterocyclic Ligand for Advanced Optical Applications. J Fluoresc 2022; 32:1073-1087. [PMID: 35303238 DOI: 10.1007/s10895-022-02917-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/25/2022] [Indexed: 12/20/2022]
Abstract
Our present technological society needs the assistance of lanthanide luminescence in almost every field to meet the global energy demands. In present research work we have synthesized five (one binary and four ternary) 5-(4-methylphenyl)-2- furoic acid based Eu(III) complexes with ancillary ligands, namely, aqua (H2O), neocuproine (neo), 2, 2'-bipyridyl (bipy), bathophenanthroline (batho) and 1, 10-phenanthroline (phen). The spectroscopic analysis and photophysical features are characterized by the use of different investigative techniques. All the findings obtained from EDAX, elemental (CHN) analysis, FT-IR, NMR, UV-visible spectroscopy declared the coordination of ligand binding sites with the europium ion. These Eu(III) complexes possess good thermal stability and excellent optoelectronic features as predicted with the help of TGA and PL analysis. Diffuse reflectance spectral studies confirm their applications in the wide band gap semiconductors. The Judd-Ofelt analysis and monoexponential behavior of lifetime reveals the existence of asymmetric and single local environment around europium ion. All the complexes show sharp red emission validated by CIE color coordinates, color purity, asymmetric ratio and CCT values. SEM analysis tells that the bulk of these complexes comprised of spherical shaped particles with uniform distribution.
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Affiliation(s)
- Manisha Bedi
- Department of Chemistry, Maharshi Dayanand University, Rohtak-124001, India
| | - Pooja Chhillar
- Department of Chemistry, Maharshi Dayanand University, Rohtak-124001, India
| | - Priyanka Dhankhar
- Department of Chemistry, Maharshi Dayanand University, Rohtak-124001, India
| | - Jyoti Khanagwal
- Department of Chemistry, Government College for Women, Bhiwani-127021, 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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Synthesis, structure, phase controlled colour tuning of dinuclear Pr(III) and Tb(III) complexes with fluorinated β-diketone and heterocyclic Lewis base as UV light converters. Polyhedron 2022. [DOI: 10.1016/j.poly.2021.115592] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Ganaie A, Iftikhar K. Theoretical Modeling (Sparkle RM1 and PM7) and Crystal Structures of the Luminescent Dinuclear Sm(III) and Eu(III) Complexes of 6,6,7,7,8,8,8- Heptafluoro-2,2-dimethyl-3,5-octanedione and 2,3-Bis(2-pyridyl)pyrazine: Determination of Individual Spectroscopic Parameters for Two Unique Eu 3+ Sites. ACS OMEGA 2021; 6:21207-21226. [PMID: 34471726 PMCID: PMC8387994 DOI: 10.1021/acsomega.0c05976] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
Heteroleptic homo dinuclear complexes [Sm(fod)3(μ-bpp)Sm(fod)3] and [Eu(fod)3(μ-bpp)Eu(fod)3] and their diamagnetic analogue [Lu(fod)3(μ-bpp)Lu(fod)3] (fod is the anion of 6,6,7,7,8,8,8- heptafluoro-2,2-dimethyl-3,5-octanedione (Hfod) and bpp is 2,3-bis(2-pyridyl)pyrazine) are synthesized and thoroughly characterized. The lanthanum gave a 1:1 adduct of La(fod)3 and bpp with the molecular formula of [La(fod)3bpp]. The 1H NMR and 1H-1H COSY spectra of the complexes were used to assign the proton resonances. In the case of paramagnetic Sm3+ and Eu3+ complexes, the methine (of the fod moiety) and the bpp resonances are shifted in the opposite direction and the paramagnetic shifts are dipolar in nature, which decrease with increasing distance of the proton from the metal ion. The single-crystal X-ray analyses reveal that the complexes (Sm3+ and Eu3+) are dinuclear and crystallize in the triclinic P1 space group. Each metal in a given complex is eight coordinate by coordinating with six oxygen atoms of three fod moieties and two nitrogen atoms of the bpp. Of the two metal centers, in a given complex, one has a distorted square antiprism arrangement and the other acquires a distorted dodecahedron geometry. The Sparkle RM1 and PM7 optimized structures of the complexes are also presented and compared with the crystal structure. Theoretically observed bond distances are in excellent agreement with the experimental values, and the RMS deviations for the optimized structures are 2.878, 2.217, 2.564, and 2.675 Å. The photophysical properties of Sm3+ and Eu3+ complexes are investigated in different solvents, solid, and PMMA-doped thin hybrid films. The spectroscopic parameters (the Judd-Ofelt intensity parameters, radiative parameters, and intrinsic quantum yield) of each Eu3+ sites are calculated using the overlap polyhedra method. The theoretically obtained parameters are close to the experimental results. The lifetime of the excited state is 38.74 μs for Sm3+ and 713.62 μs for the Eu3+ complex in the solid state.
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Perfetti M, Gysler M, Rechkemmer-Patalen Y, Zhang P, Taştan H, Fischer F, Netz J, Frey W, Zimmermann LW, Schleid T, Hakl M, Orlita M, Ungur L, Chibotaru L, Brock-Nannestad T, Piligkos S, van Slageren J. Determination of the electronic structure of a dinuclear dysprosium single molecule magnet without symmetry idealization. Chem Sci 2019; 10:2101-2110. [PMID: 30842867 PMCID: PMC6375364 DOI: 10.1039/c8sc03170c] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 12/12/2018] [Indexed: 11/29/2022] Open
Abstract
We present the in-depth determination of the magnetic properties and electronic structure of the luminescent and volatile dysprosium-based single molecule magnet [Dy2(bpm)(fod)6] (Hfod = 6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedione, bpm = 2,2'-bipyrimidine). Ab initio calculations were used to obtain a global picture of the electronic structure and to predict possible single molecule magnet behaviour, confirmed by experiments. The orientation of the susceptibility tensor was determined by means of cantilever torque magnetometry. An experimental determination of the electronic structure of the lanthanide ion was obtained combining Luminescence, Far Infrared and Magnetic Circular Dichroism spectroscopies. Fitting these energies to the full single ion plus crystal field Hamiltonian allowed determination of the eigenstates and crystal field parameters of a lanthanide complex without symmetry idealization. We then discuss the impact of a stepwise symmetry idealization on the modelling of the experimental data. This result is particularly important in view of the misleading outcomes that are often obtained when the symmetry of lanthanide complexes is idealized.
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Affiliation(s)
- Mauro Perfetti
- Institut für Physikalische Chemie , Universität Stuttgart , Pfaffenwaldring 55 , D-70569 Stuttgart , Germany .
| | - Maren Gysler
- Institut für Physikalische Chemie , Universität Stuttgart , Pfaffenwaldring 55 , D-70569 Stuttgart , Germany .
| | - Yvonne Rechkemmer-Patalen
- Institut für Physikalische Chemie , Universität Stuttgart , Pfaffenwaldring 55 , D-70569 Stuttgart , Germany .
| | - Peng Zhang
- Institut für Physikalische Chemie , Universität Stuttgart , Pfaffenwaldring 55 , D-70569 Stuttgart , Germany .
| | - Hatice Taştan
- Institut für Physikalische Chemie , Universität Stuttgart , Pfaffenwaldring 55 , D-70569 Stuttgart , Germany .
| | - Florian Fischer
- Institut für Physikalische Chemie , Universität Stuttgart , Pfaffenwaldring 55 , D-70569 Stuttgart , Germany .
| | - Julia Netz
- Institut für Physikalische Chemie , Universität Stuttgart , Pfaffenwaldring 55 , D-70569 Stuttgart , Germany .
| | - Wolfgang Frey
- Institut für Organische Chemie , Universität Stuttgart , Pfaffenwaldring 55 , D-70569 Stuttgart , Germany
| | - Lucas W Zimmermann
- Institut für Anorganische Chemie , Universität Stuttgart , Pfaffenwaldring 55 , D-70569 Stuttgart , Germany
| | - Thomas Schleid
- Institut für Anorganische Chemie , Universität Stuttgart , Pfaffenwaldring 55 , D-70569 Stuttgart , Germany
| | - Michael Hakl
- Laboratoire National des Champs Magnétiques Intenses (LNCMI-EMFL) , CNRS , UGA , 38042 Grenoble , France
| | - Milan Orlita
- Laboratoire National des Champs Magnétiques Intenses (LNCMI-EMFL) , CNRS , UGA , 38042 Grenoble , France
- Institute of Physics , Charles University , Ke Karlovu 5 , 12116 Praja 2 , Czech Republic
| | - Liviu Ungur
- Theory of Nanomaterials Group , Katholieke Universiteit Leuven , Celestijnenlaan 220F , 3001 Leuven , Belgium
| | - Liviu Chibotaru
- Theory of Nanomaterials Group , Katholieke Universiteit Leuven , Celestijnenlaan 220F , 3001 Leuven , Belgium
| | - Theis Brock-Nannestad
- Department of Chemistry , University of Copenhagen , Universitetsparken 5 , 2100 , Denmark
| | - Stergios Piligkos
- Department of Chemistry , University of Copenhagen , Universitetsparken 5 , 2100 , Denmark
| | - Joris van Slageren
- Institut für Physikalische Chemie , Universität Stuttgart , Pfaffenwaldring 55 , D-70569 Stuttgart , Germany .
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Pereira VM, Costa AL, Feldl J, Maria TMR, Seixas de Melo JS, Martín-Ramos P, Martín-Gil J, Ramos Silva M. Synthesis, structure and physical properties of luminescent Pr(III) β-diketonate complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 172:25-33. [PMID: 27345124 DOI: 10.1016/j.saa.2016.06.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 06/08/2016] [Accepted: 06/16/2016] [Indexed: 06/06/2023]
Affiliation(s)
- V M Pereira
- CFisUC, Department of Physics, University of Coimbra, Rua Larga, P-3004-516 Coimbra, Portugal
| | - A L Costa
- CQC, Department of Chemistry, University of Coimbra, Rua Larga, P-3004-535 Coimbra, Portugal
| | - J Feldl
- CFisUC, Department of Physics, University of Coimbra, Rua Larga, P-3004-516 Coimbra, Portugal; Fakultät für Physik, Ludwig-Maximilians-Universität, Schellingstrasse 4, 80799 München, Germany
| | - T M R Maria
- CQC, Department of Chemistry, University of Coimbra, Rua Larga, P-3004-535 Coimbra, Portugal
| | - J S Seixas de Melo
- CQC, Department of Chemistry, University of Coimbra, Rua Larga, P-3004-535 Coimbra, Portugal
| | - P Martín-Ramos
- CFisUC, Department of Physics, University of Coimbra, Rua Larga, P-3004-516 Coimbra, Portugal; Higher Polytechnic School of Huesca, University of Zaragoza, Carretera de Cuarte s/n, 22071 Huesca, Spain.
| | - J Martín-Gil
- Advanced Materials Laboratory, ETSIIAA, Universidad de Valladolid, Avda. Madrid 44, 34004 Palencia, Spain
| | - M Ramos Silva
- CFisUC, Department of Physics, University of Coimbra, Rua Larga, P-3004-516 Coimbra, Portugal.
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Optical emission studies of new europium and terbium dinuclear complexes with trifluoroacetylacetone and bridging bipyrimidine. Fast radiation and high emission quantum yield. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.07.046] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Martín-Ramos P, Ramos Silva M, Lahoz F, Martín I, Chamorro-Posada P, Eusebio M, Lavín V, Martín-Gil J. Highly fluorinated erbium(III) complexes for emission in the C-band. J Photochem Photobiol A Chem 2014. [DOI: 10.1016/j.jphotochem.2014.07.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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9
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Gao C, Kirillov AM, Dou W, Tang X, Liu L, Yan X, Xie Y, Zang P, Liu W, Tang Y. Self-Assembly Synthesis, Structural Features, and Photophysical Properties of Dilanthanide Complexes Derived from a Novel Amide Type Ligand: Energy Transfer from Tb(III) to Eu(III) in a Heterodinuclear Derivative. Inorg Chem 2014; 53:935-42. [DOI: 10.1021/ic402338q] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Cunji Gao
- Key
Laboratory of Nonferrous Metal Chemistry and Resources Utilization
of Gansu Province, State Key Laboratory of Applied Organic Chemistry,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Alexander M. Kirillov
- Centro
de Quimica Estrutural, Complexo I, Instituto Superior Tecnico, The University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Wei Dou
- Key
Laboratory of Nonferrous Metal Chemistry and Resources Utilization
of Gansu Province, State Key Laboratory of Applied Organic Chemistry,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiaoliang Tang
- Key
Laboratory of Nonferrous Metal Chemistry and Resources Utilization
of Gansu Province, State Key Laboratory of Applied Organic Chemistry,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Liangliang Liu
- Key
Laboratory of Nonferrous Metal Chemistry and Resources Utilization
of Gansu Province, State Key Laboratory of Applied Organic Chemistry,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xuhuan Yan
- Key
Laboratory of Nonferrous Metal Chemistry and Resources Utilization
of Gansu Province, State Key Laboratory of Applied Organic Chemistry,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yujie Xie
- Key
Laboratory of Nonferrous Metal Chemistry and Resources Utilization
of Gansu Province, State Key Laboratory of Applied Organic Chemistry,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Peixian Zang
- Key
Laboratory of Nonferrous Metal Chemistry and Resources Utilization
of Gansu Province, State Key Laboratory of Applied Organic Chemistry,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Weisheng Liu
- Key
Laboratory of Nonferrous Metal Chemistry and Resources Utilization
of Gansu Province, State Key Laboratory of Applied Organic Chemistry,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yu Tang
- Key
Laboratory of Nonferrous Metal Chemistry and Resources Utilization
of Gansu Province, State Key Laboratory of Applied Organic Chemistry,
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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Irfanullah M, Iftikhar K. Synthesis and spectroscopic analysis of an extended series of hetero dinuclear complexes containing two different lanthanides in 1:1 stoichiometry. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2012.08.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Ahmed Z, Dar WA, Iftikhar K. Syntheses and spectroscopic studies of volatile low symmetry lanthanide(III) complexes with monodentate 1H-indazole and fluorinated β-diketone. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.723704] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Zubair Ahmed
- a Department of Chemistry , Lanthanide Research Laboratory , Jamia Millia Islamia, New Delhi-110 025 , India
| | - Wakeel Ahmed Dar
- a Department of Chemistry , Lanthanide Research Laboratory , Jamia Millia Islamia, New Delhi-110 025 , India
| | - K. Iftikhar
- a Department of Chemistry , Lanthanide Research Laboratory , Jamia Millia Islamia, New Delhi-110 025 , India
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Synthesis, luminescence and NMR studies of lanthanide (III) complexes with hexafluoroacetylacetone and phenanthroline. Part II. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.06.032] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Ilmi R, Iftikhar K. Pyrazine bridged Ln2 (La, Nd, Eu and Tb) complexes containing fluorinated β-diketone. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2012.01.037] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Lanthanide (Eu3+, Tb3+, Gd3+) hybrid system with functionalized diethylenetriamine pentaacetic acid: coordination bonding assembly, luminescence and MRI contrast agent property. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2012.01.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Ilmi R, Iftikhar K. Luminescent nine-coordinate lanthanide complexes derived from fluorinated β-diketone and 2,4,6-tris(2-pyridyl)-1,3,5-triazine. J COORD CHEM 2012. [DOI: 10.1080/00958972.2011.649737] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Rashid Ilmi
- a Department of Chemistry , Jamia Millia Islamia , New Delhi 110 025 , India
| | - K. Iftikhar
- a Department of Chemistry , Jamia Millia Islamia , New Delhi 110 025 , India
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Ilmi R, Iftikhar K. Synthesis, visible light absorption and luminescence of bipyrimidine bridged dinuclear lanthanide complexes of 2,4-pantanedione. INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2010.09.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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The Correlation Between f–f Absorption and Sensitized Visible Light Emission of Luminescent Pr(III) Complexes: Role of Solvents and Ancillary Ligands on Sensitivity. J Fluoresc 2010; 21:673-86. [DOI: 10.1007/s10895-010-0755-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Accepted: 10/18/2010] [Indexed: 10/18/2022]
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Irfanullah M, Iftikhar K. Pyrazine-bridged dinuclear complex formation by early lanthanides (LaIII, PrIII, NdIII and SmIII) containing bulky fluorinated β-diketonates. INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2010.06.045] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Ahmed Z, Iftikhar K. Synthesis and visible light luminescence of mononuclear nine-coordinate lanthanide complexes with 2,4,6-tris(2-pyridyl)-1,3,5-triazine. INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2010.07.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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