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Carpenter SH, Mengell J, Chen J, Jones MR, Kirk ML, Tondreau AM. Determining the Effects of Zero-Field Splitting and Magnetic Exchange in Dimeric Europium(II) Complexes. Inorg Chem 2024; 63:8516-8520. [PMID: 38667056 DOI: 10.1021/acs.inorgchem.4c00694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
Related BAP [BAP = bis(acyl)phosphide] and Acac (Acac = β-diketonate) molecules perform as robust supports for both lanthanide and actinide metals. Here, a molecular bimetallic Eu2+ complex was successfully targeted and isolated by employing sodium bis(mesitoyl)phosphide [Na(mesBAP)] in a salt metathesis with EuI2, producing [Eu(mesBAP)2(et2o)]2 (et2o = metal-coordinated diethyl ether). The corresponding Acac-Eu2+ complex was targeted using mesAcac- (1,3-dimesityl-1,3-propanedione), generating [Eu(mesAcac)2(et2o)]2. Both complexes were characterized by single-crystal X-ray diffraction, UV-vis, IR, and NMR spectroscopies, and variable-temperature magnetic susceptibility. [Eu(mesBAP)2(et2o)]2 was persistent under anaerobic, anhydrous conditions, whereas the analogous [Eu(mesAcac)2(et2o)]2 showed evidence of decomposition under identical conditions. Variable-temperature magnetic susceptibility and magnetization studies of [Eu(mesBAP)2(et2o)]2 and [Eu(mesAcac)2(et2o)]2 were performed, resulting in similar magnetic exchange coupling values of Jex = -0.018 and -0.023 cm-1 and axial zero-field-splitting D values of -0.38 and -0.51 cm-1, respectively.
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Affiliation(s)
- Stephanie H Carpenter
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Joshua Mengell
- Department of Chemistry and Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Ju Chen
- Department of Chemistry and Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Margaret R Jones
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Martin L Kirk
- Department of Chemistry and Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, United States
- The Center for High Technology Materials, The University of New Mexico, Albuquerque, New Mexico 87106, United States
- The Center for Quantum Information and Control, The University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Aaron M Tondreau
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
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Zabala-Lekuona A, Lopez de Pariza X, Díaz-Ortega IF, Cepeda J, Nojiri H, Gritsan NP, Dmitriev AA, López-Ortega A, Rodríguez-Diéguez A, Seco JM, Colacio E. From field-induced to zero-field SMMs associated with open/closed structures of bis(ZnDy) tetranuclear complexes: a combined magnetic, theoretical and optical study. Dalton Trans 2024; 53:7971-7984. [PMID: 38647324 DOI: 10.1039/d4dt00148f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
We have prepared a bis(compartmental) Mannich base ligand H4L (1,4,8,11-tetraaza-1,4,8,11-tetrakis(2-hydroxy-3-methoxy-5-methylbenzyl)cyclotetradecane) specifically designed to obtain bis(TMIILnIII) tetranuclear complexes (TM = transition metal). In this regard, we have succeeded in obtaining three new complexes of the formula [Zn2(μ-L)(μ-OAc)Dy2(NO3)2]·[Zn2(μ-L)(μ-OAc)Dy2(NO3)(OAc)]·4CHCl3·2MeOH (1) and [TM2(μ-H2L)2(μ-succinate)Ln2(NO3)2] (NO3)2·2H2O·6MeOH (TMII = Zn, LnIII = Dy (2); TMII = Co, LnIII = Dy (3)). Compound 1 contains two different bis(ZnDy) tetranuclear molecules that cocrystallize in the structure, in which acetato bridging ligands connect the ZnII and DyIII ions within each ZnDy subunit. This compound does not exhibit slow magnetic relaxation at zero field, but it is activated in the presence of an applied dc magnetic field and/or by Dy/Y magnetic dilution, showing two relaxation processes corresponding to each of the two different bis(ZnDy) units found in the structure. As revealed by the theoretical calculations, magnetic relaxation in 1 is single-ion in origin and takes place through the first excited state of each DyIII ion. When using the succinato dicarboxylate bridging ligand instead of acetate, compounds 2 and 3 were serendipitously formed, which have a closed structure with the succinate anion bridging two ZnDy subunits belonging to two different ligands. It should be noted that only compound 2 exhibits slow relaxation of magnetization in the absence of an external magnetic field. According to experimental and theoretical data, 2 relaxes through the second excited Kramers doublet (Ueff = 342 K). In contrast, 3 displays field-induced SMM behaviour (Ueff = 203 K). However, the Co/Zn diluted version of this compound 3Zn shows slow relaxation at zero field (Ueff = 347 K). Ab initio theoretical calculations clearly show that the weak ferromagnetic coupling between CoII and DyIII ions is at the origin of the lack of slow relaxation of this compound at zero field. Compound 2 and its diluted analogues 2Y and 3Zn show hysteresis loops at very low temperature, thus confirming their SMM behaviour. Finally, compounds 1 and 2 show DyIII based emission even at room temperature that, in the case of 2, allows us to extract the splitting of the ground 6H15/2 term, which matches reasonably well with theoretical calculations.
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Affiliation(s)
- Andoni Zabala-Lekuona
- Departamento de Química Aplicada, Facultad de Química, Universidad del País Vasco (UPV/EHU), 20018 Donostia-San Sebastián, Spain.
| | - Xabier Lopez de Pariza
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, Donostia-San Sebastián 20018, Spain
| | - Ismael F Díaz-Ortega
- Departamento de Química y Física-CIESOL, Universidad de Almería, Ctra. Sacramento s/n, 04120 Almería, Spain
- Institute for Materials Research, Tohoku University, Katahira, Sendai, 980-8577, Japan
| | - Javier Cepeda
- Departamento de Química Aplicada, Facultad de Química, Universidad del País Vasco (UPV/EHU), 20018 Donostia-San Sebastián, Spain.
| | - Hiroyuki Nojiri
- Institute for Materials Research, Tohoku University, Katahira, Sendai, 980-8577, Japan
| | - Nina P Gritsan
- Institute of Chemical Kinetics and Combustion, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Alexey A Dmitriev
- Institute of Chemical Kinetics and Combustion, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Alberto López-Ortega
- Departamento de Ciencias, Universidad Pública de Navarra, E-31006 Pamplona, Spain
- Institute for Advanced Materials and Mathematics (INAMAT2), Universidad Pública de Navarra, E-31006 Pamplona, Spain
- CIC nanoGUNE BRTA, Tolosa Hiribidea 76, Donostia-San Sebastian, 20018, Spain
| | - Antonio Rodríguez-Diéguez
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain.
| | - José M Seco
- Departamento de Química Aplicada, Facultad de Química, Universidad del País Vasco (UPV/EHU), 20018 Donostia-San Sebastián, Spain.
| | - Enrique Colacio
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain.
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Sahoo J, Krishnaraj C, Sun J, Bihari Panda B, Subramanian PS, Sekhar Jena H. Lanthanide based inorganic phosphates and biological nucleotides sensor. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214583] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Munasinghe HN, Szlag RG, Imer MR, Rabuffetti FA. Synthesis, Structure, and Luminescence of Mixed-Ligand Lanthanide Trifluoroacetates. Inorg Chem 2022; 61:5588-5594. [PMID: 35344656 PMCID: PMC9652486 DOI: 10.1021/acs.inorgchem.2c00196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of new mixed-ligand lanthanide trifluoroacetates of formula Ln(4-cpno)(tfa)3(H2O)·H2O (Ln = Sm, Eu, Gd, Tb, Dy; 4-cpno = 4-cyanopyridine N-oxide; tfa = trifluoroacetate) is reported. Trifluoroacetates were synthesized as chemically pure polycrystalline solids and their crystal structures were probed using single-crystal and powder X-ray diffraction. Ln(4-cpno)(tfa)3(H2O)·H2O solids make up an isostructural series in which LnO8 polyhedra are bridged by 4-cpno to form edge-sharing dimers. Trifluoroacetato connects these dimers to yield chains whose three-dimensional packing is governed by hydrogen bonds established between 4-cpno, trifluoroacetato, and water. 4-cpno serves as an efficient sensitizer of lanthanide-centered luminescence. UV excitation of its singlet manifold and subsequent energy transfer to the 4f levels of the lanthanides yield orange (Sm), red (Eu), green (Tb), and yellow (Dy) emissions. Sensitization efficiencies reach 81 and 64% for Eu and Tb hybrids, respectively. Tb(4-cpno)(tfa)3(H2O)·H2O displays a quantum yield of 52%, which coupled to the high absorptivity of 4-cpno, makes it a bright-green emitter under 292 nm excitation. Lanthanide trifluoroacetates may therefore serve as hybrid solid-state light emitters provided that adequate sensitizers are identified.
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Affiliation(s)
- Hashini N Munasinghe
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
| | - Regina G Szlag
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
| | - Marcos R Imer
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
| | - Federico A Rabuffetti
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
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Cui M, Yang L, Li F, Zhou L, Song Y, Fang SM, Liu CM, Li XL. Multifunctional Dy III Enantiomeric Pairs Showing Enhanced Photoluminescences and Third-Harmonic Generation Responses through the Coordination Role of Homochiral Tridentate N,N,N-Pincer Ligands. Inorg Chem 2021; 60:13366-13375. [PMID: 34428893 DOI: 10.1021/acs.inorgchem.1c01682] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
By utilizing Dy(hfac)3(H2O)2 to react with enantiomerically pure tridentate N,N,N-pincer ligands, namely (-)/(+)-2,6-bis(4',5'-pinene-2'-pyridyl)pyridine (LR and LS), respectively, homochiral DyIII enantiomeric pairs formulated as Dy(hfac)3LR/Dy(hfac)3LS (R-1/S-1) (hfac- = hexafluoroacetylacetonate) were achieved and structurally characterized. Meanwhile, their magnetic, photoluminescent (PL), and chiroptical properties were probed. The PL test results indicate that the precursor Dy(hfac)3(H2O)2 only shows very weak emission, while R-1 exhibits characteristic DyIII f-f transition emission bands at room temperature. Furthermore, the nonlinear optical responses of Dy(hfac)3(H2O)2, LR/LS, and R-1/S-1 were investigated in detail based on crystalline samples. The results reveal that LR and LS present the coexistence of second- and third-harmonic generation (SHG and THG) responses with more intense signals for SHG responses; and Dy(hfac)3(H2O)2 merely displays weak THG responses, while R-1 and S-1 also only exhibit THG responses. However, the THG intensities of R-1 and S-1 are more than six times larger than that of Dy(hfac)3(H2O)2 under the identical measurement conditions. These results demonstrate that introducing homochiral N,N,N-pincer ligands to replace two H2O molecules of Dy(hfac)3(H2O)2 results in significant improvements of both PL performances and THG responses of resultant R-1/S-1 enantiomers. R-1 and S-1 integrate PL, THG, and chiral optical activity in one molecule, suggesting their multifunctional merits. In particular, a convenient method is introduced to simultaneously test THG and SHG responses of molecular materials based on crystalline samples in this work.
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Affiliation(s)
- Minghui Cui
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China
| | - Linpo Yang
- Department of Applied Physics, Harbin Institute of Technology, Harbin 150001, PR China
| | - Fengcai Li
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China
| | - Liming Zhou
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China
| | - Yinglin Song
- Department of Applied Physics, Harbin Institute of Technology, Harbin 150001, PR China
| | - Shao-Ming Fang
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China
| | - Cai-Ming Liu
- Bejing National Laboratory for Molecular Sciences, Institution of Chemistry, Chinese Academy of Sciences, Bejing 100190, PR China
| | - Xi-Li Li
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China
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Cuerva C, Cano M, Lodeiro C. Advanced Functional Luminescent Metallomesogens: The Key Role of the Metal Center. Chem Rev 2021; 121:12966-13010. [PMID: 34370446 DOI: 10.1021/acs.chemrev.1c00011] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The use of liquid crystals for the fabrication of displays incorporated in technological devices (TVs, calculators, screens of eBook's, tablets, watches) demonstrates the relevance that these materials have had in our way of living. However, society evolves, and improved devices are looked for as we create a more efficient and safe technology. In this context, metallomesogens can behave as multifunctional materials because they can combine the fluidic state of the mesophases with properties such as photo and electroluminescence, which offers new exciting possibilities in the field of optoelectronics, energy, environment, and even biomedicine. Herein, it has been established the role of the molecular geometry induced by the metal center in metallomesogens to achieve the self-assembly required in the liquid-crystalline mesophase. Likewise, the effect of the coordination environment in metallomesogens has been further analyzed because of its importance to induce mesomorphism. The structural analysis has been combined with an in-depth discussion of the properties of these materials, including their current and potential future applications. This review will provide a solid background to stimulate the development of novel and attractive metallomesogens that allow designing improved optoelectronic and microelectronic components. Additionally, nanoscience and nanotechnology could be used as a tool to approach the design of nanosystems based on luminescent metallomesogens for use in bioimaging or drug delivery.
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Affiliation(s)
- Cristián Cuerva
- BIOSCOPE Research Group, LAQV@REQUIMTE Chemistry Department, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Mercedes Cano
- Department of Inorganic Chemistry, Complutense University of Madrid, Ciudad Universitaria, 28040 Madrid, Spain
| | - Carlos Lodeiro
- BIOSCOPE Research Group, LAQV@REQUIMTE Chemistry Department, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal.,PROTEOMASS Scientific Society, Rua dos Inventores, Madam Parque, Caparica Campus, 2829-516 Caparica, Portugal
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8
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Bernot K, Daiguebonne C, Calvez G, Suffren Y, Guillou O. A Journey in Lanthanide Coordination Chemistry: From Evaporable Dimers to Magnetic Materials and Luminescent Devices. Acc Chem Res 2021; 54:427-440. [PMID: 33395256 DOI: 10.1021/acs.accounts.0c00684] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
ConspectusLanthanide ions are prime ingredients for the design of compounds, materials, and devices with unique magnetic and optical properties. Accordingly, coordination chemistry is one of the best tools for building molecular edifices from these ions because it allows careful control of the ions' environment and of the dimensionality of the final compound.In this Account, we review our results on lanthanide-based dimers. We show how a pure fundamental study on lanthanide coordination chemistry allows the investigation of a full continuum of results from the compound to materials and then to devices. The conversion of molecules into materials is a tricky task because it requires strong molecular robustness toward the surface deposition processes as well as the preservation and detectability of the molecular properties in the material. Additionally, the passage of a material toward a device implies a material with a given function, for example, a tailored response to an external stimulus.To do so, we targeted neutral and isolated molecules whose transfer on surfaces by chemi- or physisorption is much easier than that of charged molecules or extended coordination networks. Then, we focused on molecules with very strong evaporability to avoid wet chemistry deposition processes that are more likely to damage the molecules and/or distort their geometries.We thus designed lanthanide dimers based on fluorinated β-diketonates and pyridine-N-oxide ligands. As expected, they show remarkable evaporability but also strong luminescence and interesting magnetic behavior because they behave as single-molecule magnets (SMMs). Ligand substitutions and stoichiometric modifications allow the optimization of the geometric organization of the dimers in the crystal packing as well as their evaporability, SMM behavior, luminescent properties, or their ability to be anchored on surfaces. Most of all, this family of molecules shows a strong ability to form thick films on various substrates. This allows converting these molecules to magnetic materials and luminescent devices.Magnetic materials can be designed by creating thick films of the dimers deposited on gold. These films have been designed and investigated with the most advanced techniques of on-surface imaging (atomic force microscopy, AFM), on-surface physicochemical characterization (X-ray photoelectron spectroscopy (XPS), time of flight-secondary ion mass spectroscopy (Tof-SIMS)), and on-surface magnetic investigation (low-energy muon spin relaxation (LE-μSR)). Contrary to what was previously observed on other SMM films, no depth dependence of the SMM behavior was observed. This means that the dimers do not suffer from the vacuum or substrate interface and behave similarly, whatever their localization. This exceptional magnetic robustness is a key ingredient in the creation of materials for molecular magnetic data storage.Luminescent devices can be obtained by layering molecular films of the dimers with a copper-rich solid-state electrolyte between ITO/Pt electrodes. The electromigration of Cu2+ ions into films of Eu3+, Tb3+, and Dy3+ dimers quenches their luminescence. This luminescence tuning by electromigration is reversible, and this setup can be considered to be a proof of concept of full solid-state luminescent device where reversible coding can be tailored by an electric field. It is envisioned for optical data storage purposes. In the future, it could also benefit from the SMM properties of the molecules to pave the way toward multifunctional molecular data storage devices.
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Affiliation(s)
- Kevin Bernot
- Université Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, 35000 Rennes, France
| | - Carole Daiguebonne
- Université Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, 35000 Rennes, France
| | - Guillaume Calvez
- Université Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, 35000 Rennes, France
| | - Yan Suffren
- Université Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, 35000 Rennes, France
| | - Olivier Guillou
- Université Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, 35000 Rennes, France
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Zhao Y, Xu Y, Xu B, Cen P, Song W, Duan L, Liu X. A dual-sensitized luminescent europium(iii) complex as a photoluminescent probe for selectively detecting Fe 3. RSC Adv 2020; 10:24244-24250. [PMID: 35516177 PMCID: PMC9055115 DOI: 10.1039/d0ra03821k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 06/19/2020] [Indexed: 12/24/2022] Open
Abstract
A new luminescent EuIII complex, namely [Eu2(BTFA)4(OMe)2(dpq)2] (1), in which BTFA = 3-benzoyl-1,1,1-trifluoroacetone and dpq = dipyrido [3,2-d:2',3'-f] quinoxaline, has been designed and synthesized by employing two different ligands as sensitizers. Crystal structure analysis reveals that complex 1 is composed of dinuclear EuIII units crystallized in the monoclinic P1̄ space group. Notably, 1 exhibits high thermal stability up to 270 °C and excellent water stability. The photoluminescence property of the complex is investigated. Further studies show 1 can recognize Fe3+ ions with high selectivity from mixed metal ions in aqueous solution through the luminescence quenching phenomenon. Furthermore, the recyclability and stability of 1 after sensing experiments are observed to be adequate. By virtue of the superior stability, detection efficiency, applicability and reusability, the as-prepared EuIII complex can be a promising fluorescent material for practical sensing.
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Affiliation(s)
- Yafeng Zhao
- College of Agriculture, College of Chemistry and Chemical Engineering, Ningxia University Yinchuan 750021 China
| | - Yanhong Xu
- College of Agriculture, College of Chemistry and Chemical Engineering, Ningxia University Yinchuan 750021 China
| | - Bing Xu
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture & Technology Xi'an 710055 China
| | - Peipei Cen
- College of Public Health and Management, Ningxia Medical University Yinchuan 750021 China
| | - Weiming Song
- College of Agriculture, College of Chemistry and Chemical Engineering, Ningxia University Yinchuan 750021 China
| | - Lijuan Duan
- College of Agriculture, College of Chemistry and Chemical Engineering, Ningxia University Yinchuan 750021 China
| | - Xiangyu Liu
- College of Agriculture, College of Chemistry and Chemical Engineering, Ningxia University Yinchuan 750021 China
- State Key Laboratory of Coordination Chemistry, Nanjing University Nanjing 210023 China
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Li C, Yue Q, Xu Y, Ping E, Zhang L, Zhou Y. 3-D lanthanide-organic frameworks constructed by 2,2′-bipyridine-3,3′-dicarboxylic acid and oxalic acid: Structure, photoluminescence and luminescent sensing properties. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127947] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ahmed Z, Iftikhar K. Blue to near infra-red photoluminescence from distorted SAP (C4V) tris(hexafluoroacetylacetonato)Ho(III) and Tm(III) complexes with indazole. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2019.112281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Ilmi R, Kansız S, Al-Rasbi NK, Dege N, Raithby PR, Khan MS. Towards white light emission from a hybrid thin film of a self-assembled ternary samarium(iii) complex. NEW J CHEM 2020. [DOI: 10.1039/c9nj06287d] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A new samarium(iii) complex, [Sm(hfaa)3(Py-Im)], has been prepared and fabricated into thin films which show color tunability from violet to orange depending on the concentration of doping within the film.
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Affiliation(s)
- Rashid Ilmi
- Department of Chemistry
- Sultan Qaboos University
- Al Khod 123
- Oman
| | - Sevgi Kansız
- Department of Fundamental Sciences
- Faculty of Engineering
- Samsun University
- Samsun
- Turkey
| | | | - Necmi Dege
- Department of Physics
- Faculty of Arts and Sciences
- Ondokuz Mayıs University
- Samsun
- Turkey
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Evrard Q, Cucinotta G, Houard F, Calvez G, Suffren Y, Daiguebonne C, Guillou O, Caneschi A, Mannini M, Bernot K. Self-assembly of a terbium(III) 1D coordination polymer on mica. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:2440-2448. [PMID: 31921522 PMCID: PMC6941415 DOI: 10.3762/bjnano.10.234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 11/22/2019] [Indexed: 06/10/2023]
Abstract
The terbium(III) ion is a particularly suitable candidate for the creation of surface-based magnetic and luminescent devices. In the present work, we report the epitaxial growth of needle-like objects composed of [Tb(hfac)3·2H2O] n (where hfac = hexafluoroacetylacetonate) polymeric units on muscovite mica, which is observed by atomic force microscopy. The needle-like shape mimics the structure observed in the crystalline bulk material. The growth of this molecular organization is assisted by water adsorption on the freshly air-cleaved muscovite mica. This deposition technique allows for the observation of a significant amount of nanochains grown along three preferential directions 60° apart from another. The magnetic properties and the luminescence of the nanochains can be detected without the need of surface-dedicated instrumentation. The intermediate value of the observed luminescence lifetime of the deposits (132 µs) compared to that of the bulk (375 µs) and the CHCl3 solution (13 µs) further reinforces the idea of water-induced growth.
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Affiliation(s)
- Quentin Evrard
- Université de Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
| | - Giuseppe Cucinotta
- Laboratory for Molecular Magnetism (LA.M.M.), Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, INSTM Research Unit of Firenze, Via della Lastruccia n. 3-13, Sesto Fiorentino (FI) I-50019, Italy
| | - Felix Houard
- Université de Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
| | - Guillaume Calvez
- Université de Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
| | - Yan Suffren
- Université de Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
| | - Carole Daiguebonne
- Université de Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
| | - Olivier Guillou
- Université de Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
| | - Andrea Caneschi
- Dipartimento di Ingegneria Industriale - DIEF, Università degli Studi di Firenze, INSTM Research Unit of Firenze, Via di Santa Marta n. 3, Firenze - 50139, Italy
| | - Matteo Mannini
- Laboratory for Molecular Magnetism (LA.M.M.), Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, INSTM Research Unit of Firenze, Via della Lastruccia n. 3-13, Sesto Fiorentino (FI) I-50019, Italy
| | - Kevin Bernot
- Université de Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
- Institut Universitaire de France (IUF), Ministère de l'Enseignement supérieur, de la Recherche et de l'Innovation, 1 rue Descartes, 75231 Paris Cedex 05, France
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14
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Mikhalyova EA, Pavlishchuk VV. Modern Approaches to the Tuning of the Lanthanide(3+) Coordination Compound Luminescent Characteristics: A Review. THEOR EXP CHEM+ 2019. [DOI: 10.1007/s11237-019-09622-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Ilmi R, Khan MS, Li Z, Zhou L, Wong WY, Marken F, Raithby PR. Utilization of Ternary Europium Complex for Organic Electroluminescent Devices and as a Sensitizer to Improve Electroluminescence of Red-Emitting Iridium Complex. Inorg Chem 2019; 58:8316-8331. [DOI: 10.1021/acs.inorgchem.9b00303] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Rashid Ilmi
- Department of Chemistry, Sultan Qaboos University, P.O. Box 36, Al Khod 123, Sultanate of Oman
| | - Muhammad S. Khan
- Department of Chemistry, Sultan Qaboos University, P.O. Box 36, Al Khod 123, Sultanate of Oman
| | - Zhenzhen Li
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, People’s Republic of China
| | - Liang Zhou
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, People’s Republic of China
| | - Wai-Yeung Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon Hong Kong
| | - Frank Marken
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Paul R. Raithby
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
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16
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Ilmi R, Haque A, Khan MS. Synthesis and photo-physics of red emitting europium complexes: An estimation of the role of ancillary ligand by chemical partition of radiative decay rate. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2018.10.042] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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17
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Zhang L, Ma H, Wang ZQ, Tian YM, Zhang YQ, Sun WB. Double and triple pyridine-N-oxide bridged dinuclear Dysprosium(III) dimers and single-molecule magnetic properties. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Errulat D, Gabidullin B, Murugesu M, Hemmer E. Probing Optical Anisotropy and Polymorph-Dependent Photoluminescence in [Ln 2 ] Complexes by Hyperspectral Imaging on Single Crystals. Chemistry 2018; 24:10146-10155. [PMID: 29665186 DOI: 10.1002/chem.201801224] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 04/15/2018] [Indexed: 01/24/2023]
Abstract
Two homodinuclear and one heterodinuclear lanthanide (Ln)-based complexes of the general formula [Ln2 (bpm)(tfaa)6 ] (Ln=Eu (1), Tb (2), Eu-Tb (3), bpm=2,2'-bipyrimidine, tfaa- =1,1,1-trifluoroacetylacetonate) were synthesized and characterized by single-crystal photoluminescence spectroscopy and hyperspectral imaging. Complexes 1 and 2 crystallize in two polymorphic structures, while three polymorphs were isolated for 3, namely having needle-, plate-, and block-like morphologies. Single-crystal photoluminescence spectroscopy and imaging on Eu3+ -containing 1 and 3 revealed polymorph-dependent J-splitting of the hypersensitive 5 D0 →7 F2 Eu3+ transition as well as electric-to-magnetic dipole emission intensity ratios. According to these observations, the lowest symmetry chemical environment was attributed to the Eu3+ ions present in the needle-like polymorph, also in agreement with single-crystal X-ray diffraction analysis. More importantly, hyperspectral imaging on all three single-crystal polymorphs of 3 exhibits optical anisotropy with photoluminescence enhancement at specific crystallographic faces. This behavior was ascribed to the distinct molecular packing of the Ln-Ln dimers in each polymorphic crystal as well as to face-specific local symmetry of the Eu3+ centers. Overall, opto-structural relationships of three Ln-Ln dimers and their single-crystal polymorphs were established as a particularly promising avenue for control of photoluminescence by chemical crystal engineering.
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Affiliation(s)
- Dylan Errulat
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
| | - Bulat Gabidullin
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
| | - Muralee Murugesu
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
| | - Eva Hemmer
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
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19
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Díaz-Ortega IF, Herrera JM, Aravena D, Ruiz E, Gupta T, Rajaraman G, Nojiri H, Colacio E. Designing a Dy2 Single-Molecule Magnet with Two Well-Differentiated Relaxation Processes by Using a Nonsymmetric Bis-bidentate Bipyrimidine-N-Oxide Ligand: A Comparison with Mononuclear Counterparts. Inorg Chem 2018; 57:6362-6375. [DOI: 10.1021/acs.inorgchem.8b00427] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ismael F. Díaz-Ortega
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida Fuentenueva s/n, 18071 Granada, Spain
| | - Juan Manuel Herrera
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida Fuentenueva s/n, 18071 Granada, Spain
| | - Daniel Aravena
- Departamento de Química de los Materiales, Facultad de Química y Biología, Universidad de Santiago de Chile, Casilla 40, Correo 33, Santiago, Chile
| | - Eliseo Ruiz
- Departament de Química Inorgànica and Institut de Recerca de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
| | - Tulika Gupta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - H. Nojiri
- Institute for Materials Research, Tohoku University, Katahira, Sendai, 980-8577, Japan
| | - Enrique Colacio
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida Fuentenueva s/n, 18071 Granada, Spain
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20
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Islam SN, Sil A, Patra SK. Achieving yellow emission by varying the donor/acceptor units in rod-shaped fluorenyl-alkynyl based π-conjugated oligomers and their binuclear gold(i) alkynyl complexes. Dalton Trans 2018; 46:5918-5929. [PMID: 28406507 DOI: 10.1039/c7dt00895c] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fluorenyl-alkynyl based π-conjugated rod-shaped oligomers bearing different central aromatic moieties and functionalizable di-alkynyl termini, such as H-[triple bond, length as m-dash]-Fl-[triple bond, length as m-dash]-Fl-[triple bond, length as m-dash]-Fl-[triple bond, length as m-dash]-H (OH1), H-[triple bond, length as m-dash]-Fl-[triple bond, length as m-dash]-Btz-[triple bond, length as m-dash]-Fl-[triple bond, length as m-dash]-H (OH2) and H-[triple bond, length as m-dash]-Fl-[triple bond, length as m-dash]-Btd-[triple bond, length as m-dash]-Fl-[triple bond, length as m-dash]-H (OH3) where Fl = 9,9-dioctylfluorene, Btz = N-hexylbenzotriazole, and Btd = benzothiadiazole, were successfully synthesized by a Pd(0) catalyzed Stille coupling protocol. Electron withdrawing benzothiadiazole and benzotriazole as strong to moderate acceptors and fluorene as the donor have been incorporated to adjust the Donor-Acceptor (D-A) strength for fine-tuning the bandgap (Eg) as well as the emission wavelength. The corresponding digold(i) σ-complexes (PPh3)Au-[triple bond, length as m-dash]-Fl-[triple bond, length as m-dash]-Fl-[triple bond, length as m-dash]-Fl-[triple bond, length as m-dash]-Au(PPh3) (OM1), (PPh3)Au-[triple bond, length as m-dash]-Fl-[triple bond, length as m-dash]-Btz-[triple bond, length as m-dash]-Fl-[triple bond, length as m-dash]-Au(PPh3) (OM2) and (PPh3)Au-[triple bond, length as m-dash]-Fl-[triple bond, length as m-dash]-Btd-[triple bond, length as m-dash]-Fl-[triple bond, length as m-dash]-Au(PPh3) (OM3) have also been prepared by a reaction of Au(PPh3)Cl and methanolic NaOMe in DCM with the corresponding alkynyl functionalized oligomers to take advantage of the heavy-atom effect on their emissive properties. The synthesized rod-shaped π-conjugated fluorene based oligomers and their binuclear Au(i) σ-complexes have been unambiguously characterized by various spectroscopic tools such as FTIR and multinuclear NMR as well as MALDI-TOF and CHN analyses. The absorption and emission spectral studies exhibited a progressive red shift with increasing the electron withdrawing character of the central aromatic unit. The rod-like oligomers having alkynyl termini and the corresponding digold(i) complexes are found to be blue, cyan and yellow emissive, demonstrating the fine-tuning of the emission wavelength. Most importantly, the fluorene based π-conjugated yellow light emitters OH3 and OM3 are successfully achieved by varying the donor/acceptor moiety to the fluorenyl-alkynyl backbone. The digold(i) diacetylide organometallic wires exhibit phosphorescence at 77 K in degassed CH2Cl2 due to the efficient intersystem crossing from the S1 to the T1 excited state as induced by heavy atoms.
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Affiliation(s)
- Sk Najmul Islam
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, WB, India.
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21
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Maass JS, Wilharm RK, Luck RL, Zeller M. Photoluminescent properties of three lanthanide compounds of formulae LnCl3(diphenyl((5-phenyl-1H-pyrazol-3-yl)methyl)phosphine oxide)2, Ln = Sm, Eu and Tb: X-ray structural, emission and vibrational spectroscopies, DFT and thermogravimetric studies. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.11.049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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22
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Kanazawa K, Komiya Y, Nakamura K, Kobayashi N. Red luminescence control of Eu(iii) complexes by utilizing the multi-colored electrochromism of viologen derivatives. Phys Chem Chem Phys 2017; 19:16979-16988. [PMID: 28425522 DOI: 10.1039/c6cp08528h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The electroresponsive switching of red photoluminescence based on the electrochemical coloration of cyan-magenta-green (CMG) viologen components was achieved by combining a luminescent Eu3+ chelate and viologen derivatives, resulting in CMG coloration in a single cell. The cell coloration was controlled by an electrochromic (EC) reaction, which also modulated the photoluminescence of the Eu3+ chelate with high contrast, by transferring energy from the excited state of the Eu3+ ion to the colored states of EC molecules. Cyclic voltammograms, photoluminescence spectra, absorption spectra, luminescence quantum yields, and luminescence lifetimes were measured to clarify the differences between the luminescence quenching and energy transfer efficiencies for each C, M, and G coloration associated with the electrochromism. Thus, the spectral overlap between the luminescence band of the Eu3+ chelate and the absorption band of the colored EC molecules was proven to affect the efficiency of luminescence modulation.
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Affiliation(s)
- Kenji Kanazawa
- Department of Image and Materials Science, Graduate School of Advanced Integration Science, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
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23
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Structures and optical spectroscopy of lanthanide trifluoroacetates obtained from hexafluoroacetylacetone. J Fluor Chem 2017. [DOI: 10.1016/j.jfluchem.2017.03.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Koiso N, Kitagawa Y, Nakanishi T, Fushimi K, Hasegawa Y. Eu(III) Chiral Coordination Polymer with a Structural Transformation System. Inorg Chem 2017; 56:5741-5747. [DOI: 10.1021/acs.inorgchem.7b00337] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Naoyuki Koiso
- TOSOH Corporation, 2743-1, Hayakawa, Ayase, Kanagawa 252-1123, Japan
| | - Yuichi Kitagawa
- Faculty of Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Kita-ku, Sapporo,
Hokkaido 060-8628, Japan
| | - Takayuki Nakanishi
- Faculty of Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Kita-ku, Sapporo,
Hokkaido 060-8628, Japan
| | - Koji Fushimi
- Faculty of Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Kita-ku, Sapporo,
Hokkaido 060-8628, Japan
| | - Yasuchika Hasegawa
- Faculty of Engineering, Hokkaido University, Kita-13 Jo, Nishi-8 Chome, Kita-ku, Sapporo,
Hokkaido 060-8628, Japan
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25
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Wang Z, Liu N, Li H, Chen P, Yan P. The Role of Blue-Emissive 1,8-Naphthalimidopyridine N
-Oxide in Sensitizing EuIII
Photoluminescence in Dimeric Hexafluoroacetylacetonate Complexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Zhao Wang
- Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University); Ministry of Education; School of Chemistry and Materials Science; Heilongjiang University; 150080 Harbin PR China
| | - NanNan Liu
- Laboratory for Food Science and Engineering; Harbin University of Commerce; 150076 Harbin PR China
| | - Hongfeng Li
- Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University); Ministry of Education; School of Chemistry and Materials Science; Heilongjiang University; 150080 Harbin PR China
| | - Peng Chen
- Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University); Ministry of Education; School of Chemistry and Materials Science; Heilongjiang University; 150080 Harbin PR China
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry; Jilin University; 130012 Changchun PR China
| | - Pengfei Yan
- Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University); Ministry of Education; School of Chemistry and Materials Science; Heilongjiang University; 150080 Harbin PR China
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26
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Josephine Kanimozhi A, Alexander V. Synthesis and photophysical and magnetic studies of ternary lanthanide(iii) complexes of naphthyl chromophore functionalized imidazo[4,5-f][1,10]phenanthroline and dibenzoylmethane. Dalton Trans 2017. [DOI: 10.1039/c7dt01133d] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of ternary Eu(iii) and Tb(iii) complexes of dibenzoylmethane and naphthyl- and hydroxynaphthyl functionalized imidazo[4,5-f][1,10]phenanthroline as ancillary ligands and their luminescence and magnetic properties are reported in this work.
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Affiliation(s)
| | - V. Alexander
- Department of Chemistry
- Loyola College
- Chennai-60003
- India
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27
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28
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Zhao C, Sun Y, Ren J, Qu X. Recent progress in lanthanide complexes for DNA sensing and targeting specific DNA structures. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.04.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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29
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Chow CY, Eliseeva SV, Trivedi ER, Nguyen TN, Kampf JW, Petoud S, Pecoraro VL. Ga3+/Ln3+ Metallacrowns: A Promising Family of Highly Luminescent Lanthanide Complexes That Covers Visible and Near-Infrared Domains. J Am Chem Soc 2016; 138:5100-9. [DOI: 10.1021/jacs.6b00984] [Citation(s) in RCA: 150] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Chun Y. Chow
- Department
of Chemistry, Willard H. Dow Laboratories, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Svetlana V. Eliseeva
- Centre de Biophysique Moléculaire, CNRS UPR 4301, F-45071 Orléans Cedex 2, France
| | - Evan R. Trivedi
- Department
of Chemistry, Willard H. Dow Laboratories, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Tu N. Nguyen
- Department
of Chemistry, Willard H. Dow Laboratories, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Jeff W. Kampf
- Department
of Chemistry, Willard H. Dow Laboratories, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Stéphane Petoud
- Centre de Biophysique Moléculaire, CNRS UPR 4301, F-45071 Orléans Cedex 2, France
| | - Vincent L. Pecoraro
- Department
of Chemistry, Willard H. Dow Laboratories, University of Michigan, Ann Arbor, Michigan 48109, United States
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30
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Murashima K, Karasawa S, Yoza K, Inagaki Y, Koga N. 3- and 4-(α-diazobenzyl)pyridine-N-oxides as photoresponsive magnetic couplers for 2p–4f heterospin systems: formation of carbene–TbIII and carbene–DyIII single-molecule magnets. Dalton Trans 2016; 45:7067-77. [DOI: 10.1039/c6dt00420b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dinuclear TbIII – and DyIII – D1pyO complexes were photolyzed to afford heterospin SMMs with Ueff/kB = 30 and 39 K, respectively.
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Affiliation(s)
- Kensuke Murashima
- Graduate School of Pharmaceutical Sciences
- Kyushu University
- Fukuoka
- Japan
| | - Satoru Karasawa
- Graduate School of Pharmaceutical Sciences
- Kyushu University
- Fukuoka
- Japan
- PRESTO
| | | | - Yuji Inagaki
- Department of Applied Quantum Physics
- Kyushu University
- Fukuoka
- Japan
| | - Noboru Koga
- Graduate School of Pharmaceutical Sciences
- Kyushu University
- Fukuoka
- Japan
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31
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Kitagawa Y, Ohno R, Nakanishi T, Fushimi K, Hasegawa Y. Visible luminescent lanthanide ions and a large π-conjugated ligand system shake hands. Phys Chem Chem Phys 2016; 18:31012-31016. [DOI: 10.1039/c6cp06294f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The novel photophysics induced by the combination of visible luminescent europium(iii) ions and large π-conjugated systems are described.
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Affiliation(s)
- Y. Kitagawa
- Faculty of Engineering
- Hokkaido University
- Sapporo
- Japan
| | - R. Ohno
- Graduate School of Chemical Sciences and Engineering
- Hokkaido University
- Sapporo
- Japan
| | - T. Nakanishi
- Faculty of Engineering
- Hokkaido University
- Sapporo
- Japan
| | - K. Fushimi
- Faculty of Engineering
- Hokkaido University
- Sapporo
- Japan
| | - Y. Hasegawa
- Faculty of Engineering
- Hokkaido University
- Sapporo
- Japan
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32
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Ahmed Z, Iftikhar K. Efficient Layers of Emitting Ternary Lanthanide Complexes for Fabricating Red, Green, and Yellow OLEDs. Inorg Chem 2015; 54:11209-25. [DOI: 10.1021/acs.inorgchem.5b01630] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zubair Ahmed
- Lanthanide Research Laboratory,
Department of Chemistry, Jamia Millia Islamia, New Delhi 110 025, India
| | - Khalid Iftikhar
- Lanthanide Research Laboratory,
Department of Chemistry, Jamia Millia Islamia, New Delhi 110 025, India
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33
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Qi XX, Ren N, Xu SL, Zhang JJ, Zong GC, Gao J, Geng LN, Wang SP, Shi SK. Lanthanide complexes with 3,4,5-triethoxybenzoic acid and 1,10-phenanthroline: synthesis, crystal structures, thermal decomposition mechanism and phase transformation kinetics. RSC Adv 2015. [DOI: 10.1039/c4ra12063a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the temperature range of 280 to 350 K, there is a solid-to-solid phase transition for each complex, which is further evidenced by four thermal circulating processes with the scanning rate of 10 K min−1.
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Affiliation(s)
- Xiao-Xia Qi
- Testing and Analysis Center
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
- College of Chemistry & Material Science
| | - Ning Ren
- College of Chemical Engineering & Material
- Handan College
- Handan 056005
- P. R. China
| | - Su-Ling Xu
- Hebei Super Vision & Inspection Institute of Boiler & Pressure Vessel
- Shijiazhuang 050061
- P. R. China
| | - Jian-Jun Zhang
- Testing and Analysis Center
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
- College of Chemistry & Material Science
| | - Guang-Cai Zong
- Testing and Analysis Center
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
- College of Chemistry & Material Science
| | - Jie Gao
- Testing and Analysis Center
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
- College of Chemistry & Material Science
| | - Li-Na Geng
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
| | - Shu-Ping Wang
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
| | - Shi-Kao Shi
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
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34
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Larionov OV, Stephens D, Mfuh AM, Arman HD, Naumova AS, Chavez G, Skenderi B. Insights into the mechanistic and synthetic aspects of the Mo/P-catalyzed oxidation of N-heterocycles. Org Biomol Chem 2014; 12:3026-36. [PMID: 24643619 PMCID: PMC4134924 DOI: 10.1039/c4ob00115j] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A Mo/P catalytic system for an efficient gram-scale oxidation of a variety of nitrogen heterocycles to N-oxides with hydrogen peroxide as terminal oxidant has been investigated. Combined spectroscopic and crystallographic studies point to the tetranuclear Mo4P peroxo complex as one of the active catalytic species present in the solution. Based on this finding an optimized catalytic system has been developed. The utility and chemoselectivity of the catalytic system has been demonstrated by the synthesis of over 20 heterocyclic N-oxides.
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Affiliation(s)
- Oleg V Larionov
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas, USA.
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35
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Coelho AC, Gomes AC, Fernandes JA, Paz FAA, Braga SS, Rino L, Pereira L, Pillinger M, Gonçalves IS. Crystal Structure and Spectroscopic Studies of a Dimeric Europium(III) β-Diketonate Complex Containing [3-(2-Pyridyl)-1-pyrazolyl]acetate. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201301520] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Yang F, Zhou Q, Zeng G, Li G, Gao L, Shi Z, Feng S. Anion effects on the structures and magnetic properties of binuclear lanthanide single-molecule magnets. Dalton Trans 2014; 43:1238-45. [DOI: 10.1039/c3dt52634h] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Hirayama M, Kobayashi Y, Tanaka Y, Sato T, Harada T, Tajima N, Kuroda R, Fujiki M, Imai Y. Chiral Optical Properties of Phenyloxazoline Derivatives that Appear Only in the Solid State. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Andreiadis ES, Gauthier N, Imbert D, Demadrille R, Pécaut J, Mazzanti M. Lanthanide complexes based on β-diketonates and a tetradentate chromophore highly luminescent as powders and in polymers. Inorg Chem 2013; 52:14382-90. [PMID: 24261703 DOI: 10.1021/ic402523v] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A new type of octacoordinated ternary β-diketonates complexes of terbium and europium has been prepared using the anionic tetradentate terpyridine-carboxylate ligand (L) as a sensitizer of lanthanide luminescence in combination with two β-diketonates ligands 2-thenoyltrifluoroacetyl-acetonate (tta(-)) for Eu(3+) and trifluoroacetylacetonate (tfac(-)) for Tb(3+). The solid state structures of the two complexes [Tb(L)(tfac)2] (1) and [Eu(L)(tta)2] (2) have been determined by X-ray crystallography. Photophysical and (1)H NMR indicate a high stability of these complexes with respect to ligand dissociation in solution. The use of the anionic tetradentate ligand in combination with two β-diketonates ligands leads to the extension of the absorption window toward the visible region (390 nm) and to high luminescence quantum yield for the europium complex in the solid state (Φ = 66(6)%). Furthermore, these complexes have been incorporated in polymer matrixes leading to highly luminescent flexible layers.
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Affiliation(s)
- Eugen S Andreiadis
- CEA-Grenoble , INAC, SCIB, Laboratoire de Reconnaissance Ionique et Chimie de Coordination, UMR-E 3 CEA-UJF, 38054 Grenoble Cedex 9, France
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39
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Wahsner J, Seitz M. Perdeuterated 2,2′-Bipyridine-6,6′-dicarboxylate: An Extremely Efficient Sensitizer for Thulium Luminescence in Solution. Inorg Chem 2013; 52:13301-3. [DOI: 10.1021/ic402652t] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Jessica Wahsner
- Department of Chemistry and Biochemistry, Ruhr-University Bochum, 44780 Bochum, Germany
| | - Michael Seitz
- Department of Chemistry and Biochemistry, Ruhr-University Bochum, 44780 Bochum, Germany
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40
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Ahmed Z, Iftikhar K. Sensitization of Visible and NIR Emitting Lanthanide(III) Ions in Noncentrosymmetric Complexes of Hexafluoroacetylacetone and Unsubstituted Monodentate Pyrazole. J Phys Chem A 2013; 117:11183-201. [DOI: 10.1021/jp403668j] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zubair Ahmed
- Lanthanide Research
Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110 025, India
| | - K. Iftikhar
- Lanthanide Research
Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110 025, India
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41
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Hou Y, Shi J, Chu W, Sun Z. Synthesis, Crystal Structure, and Near-IR Luminescent Properties of Lanthanide Bis(β-diketonate) Complexes. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300013] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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42
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Pointillart F, Guennic BL, Maury O, Golhen S, Cador O, Ouahab L. Lanthanide Dinuclear Complexes Involving Tetrathiafulvalene-3-pyridine-N-oxide Ligand: Semiconductor Radical Salt, Magnetic, and Photophysical Studies. Inorg Chem 2013; 52:1398-408. [DOI: 10.1021/ic302095h] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fabrice Pointillart
- Institut des Sciences Chimiques de
Rennes, UMR 6226 CNRS, Université de Rennes 1, 263 Avenue du
Général Leclerc, 35042 Rennes Cedex, France
| | - Boris Le Guennic
- Institut des Sciences Chimiques de
Rennes, UMR 6226 CNRS, Université de Rennes 1, 263 Avenue du
Général Leclerc, 35042 Rennes Cedex, France
| | - Olivier Maury
- Laboratoire de Chimie, UMR 5182 CNRS-ENS,
Lyon-Université Lyon 1, 46 Allée d’Italie, 69364
Lyon Cedex 07, France
| | - Stéphane Golhen
- Institut des Sciences Chimiques de
Rennes, UMR 6226 CNRS, Université de Rennes 1, 263 Avenue du
Général Leclerc, 35042 Rennes Cedex, France
| | - Olivier Cador
- Institut des Sciences Chimiques de
Rennes, UMR 6226 CNRS, Université de Rennes 1, 263 Avenue du
Général Leclerc, 35042 Rennes Cedex, France
| | - Lahcène Ouahab
- Institut des Sciences Chimiques de
Rennes, UMR 6226 CNRS, Université de Rennes 1, 263 Avenue du
Général Leclerc, 35042 Rennes Cedex, France
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Moreno-Fuquen R, Arana C, De Simone CA. Redetermination of 4-cyanopyridine N-oxide. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o2805. [PMID: 22969677 PMCID: PMC3435831 DOI: 10.1107/s1600536812036690] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Accepted: 08/23/2012] [Indexed: 11/11/2022]
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44
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Yi X, Bernot K, Pointillart F, Poneti G, Calvez G, Daiguebonne C, Guillou O, Sessoli R. A Luminescent and Sublimable DyIII-Based Single-Molecule Magnet. Chemistry 2012; 18:11379-87. [DOI: 10.1002/chem.201201167] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Indexed: 11/07/2022]
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45
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Miyata K, Ohba T, Kobayashi A, Kato M, Nakanishi T, Fushimi K, Hasegawa Y. Thermostable Organo-phosphor: Low-Vibrational Coordination Polymers That Exhibit Different Intermolecular Interactions. Chempluschem 2012. [DOI: 10.1002/cplu.201200002] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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46
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Veith M, Belot C, Huch V. New Yttrium and Europium(+3) Alkoxides Bearing Thiophene Units: Syntheses, Crystal Structure Determinations and Physico‐Chemical Properties. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101089] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Michael Veith
- Institute for Inorganic Chemistry, Saarland University, Postfach 151150, 66041 Saarbrücken, Germany
- INM – Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany, Fax: +49‐681‐9300‐223
| | - Céline Belot
- Institute for Inorganic Chemistry, Saarland University, Postfach 151150, 66041 Saarbrücken, Germany
- INM – Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany, Fax: +49‐681‐9300‐223
- Institut UTINAM UMR CNRS 6213 – Université de Franche‐Comté, 16, Route de Gray, 25030 Besançon, France
| | - Volker Huch
- Institute for Inorganic Chemistry, Saarland University, Postfach 151150, 66041 Saarbrücken, Germany
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47
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Pointillart F, Le Gal Y, Golhen S, Cador O, Ouahab L. Single-Molecule Magnet Behaviour in a Tetrathiafulvalene-Based Electroactive Antiferromagnetically Coupled Dinuclear Dysprosium(III) Complex. Chemistry 2011; 17:10397-404. [DOI: 10.1002/chem.201100869] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Indexed: 11/11/2022]
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48
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JIU H, LIU G, ZHANG Z, FU Y, CHEN J, FAN T, ZHANG L. Fluorescence enhancement of Tb(III) complex with a new β-diketone ligand by 1,10-phenanthroline. J RARE EARTH 2011. [DOI: 10.1016/s1002-0721(10)60534-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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49
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Yuasa J, Ohno T, Miyata K, Tsumatori H, Hasegawa Y, Kawai T. Noncovalent ligand-to-ligand interactions alter sense of optical chirality in luminescent tris(β-diketonate) lanthanide(III) complexes containing a chiral bis(oxazolinyl) pyridine ligand. J Am Chem Soc 2011; 133:9892-902. [PMID: 21598978 DOI: 10.1021/ja201984u] [Citation(s) in RCA: 134] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Highly luminescent tris[β-diketonate (HFA, 1,1,1,5,5,5-hexafluoropentane-2,4-dione)] europium(III) complexes containing a chiral bis(oxazolinyl) pyridine (pybox) ligand--[(Eu(III)(R)-Ph-pybox)(HFA)(3)], [(Eu(III)(R)-i-Pr-pybox)(HFA)(3)], and [(Eu(III)(R)-Me-Ph-pybox)(HFA)(3)])--exhibit strong circularly polarized luminescence (CPL) at the magnetic-dipole ((5)D(0) → (7)F(1)) transition, where the [(Eu(III)(R)-Ph-pybox)(HFA)(3)] complexes show virtually opposite CPL spectra as compared to those with the same chirality of [(Eu(III)(R)-i-Pr-pybox)(HFA)(3)] and [(Eu(III)(R)-Me-Ph-pybox)(HFA)(3)]. Similarly, the [(Tb(III)(R)-Ph-pybox)(HFA)(3)] complexes were found to exhibit CPL signals almost opposite to those of [(Tb(III)(R)-i-Pr-pybox)(HFA)(3)] and [(Tb(III)(R)-Me-Ph-pybox)(HFA)(3)] complexes with the same pybox chirality. Single-crystal X-ray structural analysis revealed ligand-ligand interactions between the pybox ligand and the HFA ligand in each lanthanide(III) complex: π-π stacking interactions in the Eu(III) and Tb(III) complexes with the Ph-pybox ligand, CH/F interactions in those with the i-Pr-pybox ligand, and CH/π interactions in those with the Me-Ph-pybox ligand. The ligand-ligand interactions between the achiral HFA ligands and the chiral pybox results in an asymmetric arrangement of three HFA ligands around the metal center. The metal center geometry varies depending on the types of ligand-ligand interaction.
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Affiliation(s)
- Junpei Yuasa
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan.
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50
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Eliseeva SV, Pleshkov DN, Lyssenko KA, Lepnev LS, Bünzli JCG, Kuzmina NP. Deciphering Three Beneficial Effects of 2,2′-Bipyridine-N,N′-Dioxide on the Luminescence Sensitization of Lanthanide(III) Hexafluoroacetylacetonate Ternary Complexes. Inorg Chem 2011; 50:5137-44. [DOI: 10.1021/ic200450x] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Svetlana V. Eliseeva
- Laboratory of Chemistry of Coordination Compounds, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
- Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology Lausanne (EPFL), BCH 1403, CH-1015 Lausanne, Switzerland
| | - Dmitry N. Pleshkov
- Laboratory of Chemistry of Coordination Compounds, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
| | - Konstantin A. Lyssenko
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, 119991 Moscow, Russia
| | - Leonid S. Lepnev
- Lebedev Physical Institute, Russian Academy of Sciences, Optics, 53 Leninsky Prosp., 119991 Moscow, Russia
| | - Jean-Claude G. Bünzli
- Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology Lausanne (EPFL), BCH 1403, CH-1015 Lausanne, Switzerland
| | - Natalia P. Kuzmina
- Laboratory of Chemistry of Coordination Compounds, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
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