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Wang M, Kitagawa Y, Hasegawa Y. Current Development of Lanthanide Complexes for Biomedical Applications. Chem Asian J 2024; 19:e202400038. [PMID: 38348520 DOI: 10.1002/asia.202400038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/09/2024] [Indexed: 03/01/2024]
Abstract
Luminescent molecule-based bioimaging system is widely used for precise localization and distinction of cancer/tumor cells. Luminescent lanthanide (Ln(III)) complexes offer long-lived (sub-millisecond time scale) and sharp (FWHM <10 nm) emission, arising from the forbidden 4f-4f electronic transitions. Luminescent Ln(III) complex-based bioimaging has emerged as a promising option for both in vitro and in vivo visualizations. In this mini-review, the historical development and recent significant progress of luminescent Ln(III) probes for bioapplications are introduced. The recent studies are mainly focused on three points: (i) the structural modifications of Ln(III) complexes in both macrocyclic and small ligands, (ii) the acquirement of high resolution luminescence images of cancer/tumor cells and (iii) the constructions of ratiometric biosensors. Furthermore, our recent study is explained as a new Cancer GPS (cancer grade probing for determining tumor grade through photophysical property analyses of intracellular Eu(III) complex.
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Affiliation(s)
- Mengfei Wang
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan
- Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
| | - Yuichi Kitagawa
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan
- Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
| | - Yasuchika Hasegawa
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan
- Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
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Rodrigues FS, da Silva VAM, Segovia GBQ, Bortoluzzi AJ, Cuin A, de Souza JIR, da Silva JAB, Lourenço da Luz L, Alves Júnior S, Tonon de Almeida E, Camargo MA. Synthesis, solid state characterization, theoretical and experimental spectroscopic studies of the new lanthanide complexes. Spectrochim Acta A Mol Biomol Spectrosc 2023; 296:122677. [PMID: 37030253 DOI: 10.1016/j.saa.2023.122677] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/15/2023] [Accepted: 03/26/2023] [Indexed: 06/19/2023]
Abstract
Three new complexes Na[Ln(pic)4]ּ⋅2.5H2O (Ln = Tb, Eu or Gd; pic = picolinate) were synthesized and characterized by infrared spectroscopy, powder X-ray diffraction and thermogravimetric analyses. The molecular structures of the complexes have been determined by single-crystal X-ray diffraction. The three isostructural lanthanide complexes crystalize in the hexagonal system with space group P6122 to Eu complex and Gd complex and space group P6522 to Tb complex. In each of the complexes, the picolinate ligands are bonded to Ln3+ and Na+ ions by different coordination modes promoting polymeric structures. The photoluminescent properties of complexes were studied and combined with theoretical studies using the density functional theory (DFT: B3LYP, PBE1PBE) and the semiempirical method AM1/Sparkle from the single crystal X-ray diffraction structures to assign a suitable model for describing the system. The B3LYP DFT functional was considered the most adequate for providing structural properties of the compounds and for describing luminescence properties. The excited triplet states (T1) and excited singlet states (S1) of the ligand were determined theoretically using Time-dependent DFT calculations (TD-DFT: B3LYP, CAM-B3LYP and LC-wPBE) and INDO/S-CIS, with the best agreement with experimental values obtained from the LC-wPBE DFT functional. The photoluminescent spectra of the complexes and their lifetime measurements were determined indicating that the Eu complex and Tb complex display different intramolecular energy transfer mechanisms with higher efficiency to ligand-to-terbium energy transfer. In addition, the experimental and theorical Judd-Ofelt intensity parameters and quantum yields of the complexes were also determined and discussed besides to a proposed 9-state diagram to describe the luminescence properties of the Eu complex. The low value of emission quantum efficiency of 5D0 emitting level of Eu(III) ion was explained by the presence of the ligand-to-metal charge transfer state (LMCT) evidenced experimentally and theoretically. A good agreement was obtained between the proposed kinetic model and experimental results showing the consistency of the set of rate equations assumed and the intramolecular pathways proposed.
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Affiliation(s)
- Fernanda Sodré Rodrigues
- Laboratório de Síntese Inorgânica e Bioinorgânica, Instituto de Química, Universidade de Brasília, Brasília, DF, Brazil
| | | | | | - Adailton João Bortoluzzi
- Laboratório de Bioinorgânica e Cristalografia (LABINC), Departamento de Química, Universidade de Santa Catarina, Florianópolis, SC, Brazil
| | - Alexandre Cuin
- Laboratório de Quimica Bioinorgânica, Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Jéssica I R de Souza
- Programa de Pós-Graduação em Ciência de Materiais, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Juliana A B da Silva
- Núcleo Interdisciplinar de Ciências Exatas e da Natureza, Campus do Agreste, Universidade Federal de Pernambuco, Caruaru, PE, Brazil; Programa de Pós-Graduação em Química, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - Leonis Lourenço da Luz
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Severino Alves Júnior
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | | | - Maryene Alves Camargo
- Laboratório de Síntese Inorgânica e Bioinorgânica, Instituto de Química, Universidade de Brasília, Brasília, DF, Brazil.
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Kosińska-Pezda M, Maciołek U, Zapała L. Synthesis, Spectral Characterization and Potential Fluorescent Properties of Three Lanthanide(III) Ions Complexes with Nalidixic Acid. Spectrochim Acta A Mol Biomol Spectrosc 2023; 294:122561. [PMID: 36878137 DOI: 10.1016/j.saa.2023.122561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/23/2023] [Accepted: 02/26/2023] [Indexed: 06/18/2023]
Abstract
Three new solid lanthanide complexes with nalidixic acid (HNal) with the stoichiometry [Ln(Nal)3]·5·.5H2O (Ln = Tb, Dy and Ho) were synthesized applying the green synthesis method from the aqueous solutions without the organic solvent addition and fully characterized by the elemental analysis, XRF, complexometric titration, gravimetric analysis, molar conductivity and solubility measurements, powder X-Ray diffraction, UV-Vis and infrared (FT-IR) spectroscopies. Moreover, the luminescent properties of the Tb(III), Dy(III), and Ho(III) complexes in the solid state and in the solutions were investigated. On the basis of the detailed spectral analysis, it was concluded that the nalidixate ligands bind to the lanthanide ions by the bidentate carboxylate and carbonyl groups while water molecules belong to the outer coordination sphere. At the excitation of UV light, the complexes exhibited characteristic emission of central lanthanide ions, the intensity of which depends significantly on the excitation wavelength and/or the solvent. Thus, the application of nalidixic acid (apart from biological activity) for the synthesis of luminescent lanthanide complexes was confirmed which can find potential applications in the field of photonic devices and/or bioimaging agents.
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Affiliation(s)
- Małgorzata Kosińska-Pezda
- Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, Rzeszow University of Technology, Rzeszow, Poland.
| | - Urszula Maciołek
- Analytical Laboratory, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University, Lublin, Poland
| | - Lidia Zapała
- Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, Rzeszow University of Technology, Rzeszow, Poland
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Khairy GM, Amin AS, Moalla SMN, Medhat A, Hassan N. Sensitive ratiometric sensor for Al(III) detection in water samples using luminescence or eye-vision. ANAL SCI 2023:10.1007/s44211-023-00340-6. [PMID: 37071307 PMCID: PMC10359221 DOI: 10.1007/s44211-023-00340-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 04/02/2023] [Indexed: 04/19/2023]
Abstract
A facile, quick, and sensitive ratiometric luminescence sensor is designed for detection aluminum ions in water samples using luminescence or eye-vision. This approach relies on the emission change of the europium(III) complex with 3-(2-naphthoyl)-1,1,1,-trifluoro acetone (3-NTA) after interaction with various concentration of aluminum ions. The addition of aluminum ions suppressed the Eu(III) emission at 615 nm under 333 nm excitation, while simultaneously enhancing the ligand emission at 480 nm. Optimum detection was obtained in methanol. The quantification of aluminum ions using ratiometric method was determined by plotting the luminescence ratio (F480nm/F615nm) versus aluminum ions concentration. The calibration plot was obtained within the range 0.1-100 µM with LOD = 0.27 µM. Additionally, the concentration of aluminum ions can be estimated semi-quantitatively by visually observing the luminescence colour change of the probe from red to light green and then to dark green after being excited by a UV lamp with 365 nm. As far as we are aware, this is the first luminescent lanthanide complex-based ratiometric probe for the detection of aluminum ions. The probe showed remarkable aluminum ions selectivity relative to that of other metal ions. The suggested sensor was used effectively to identify aluminum ions in water samples with good results.
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Affiliation(s)
- Gasser M Khairy
- Chemistry Department, Faculty of Science, Suez Canal University, Ismailia, 41522, Egypt.
| | - Alaa S Amin
- Chemistry Department, Faculty of Science, Benha University, Benha, 13518, Egypt.
| | - Sayed M N Moalla
- Chemistry Department, Faculty of Science, Port Said University, Port Said, 42526, Egypt
| | - Ayman Medhat
- Chemistry Department, Faculty of Science, Port Said University, Port Said, 42526, Egypt
| | - Nader Hassan
- Chemistry Department, Faculty of Science, Port Said University, Port Said, 42526, Egypt
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Yang Y, Zhang F. Molecular fluorophores for in vivo bioimaging in the second near-infrared window. Eur J Nucl Med Mol Imaging 2022; 49:3226-3246. [PMID: 35088125 DOI: 10.1007/s00259-022-05688-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 01/11/2022] [Indexed: 12/23/2022]
Abstract
PURPOSE This systematic review aims to summarize the current developments of fluorescence and chemi/bioluminescence imaging based on the molecular fluorophores for in vivo imaging in the second near-infrared window. METHODS AND RESULTS By investigating most of the relevant references on the web of science and some journals, this review firstly begins with an overview of the background of fluorescence and chemi/bioluminescence imaging. Secondly, the chemical and optical properties of NIR-II dyes are discussed, such as water solubility, chemostability and photo-stability, and brightness. Thirdly, the bioimaging based on NIR-II fluorescence emission is outlined, including the in vivo imaging of polymethine dyes, donor - acceptor - donor (D - A - D) chromophores, and lanthanide complexes. Fourthly, we demonstrate the chemi/bioluminescence in vivo imaging in the second near-infrared window. Fifthly, the clinical application and translation of near-infrared fluorescence imaging are presented. Finally, the current challenges, feasible strategies and potential prospects of the fluorophores and in vivo bioimaging are discussed. CONCLUSIONS Based on the above literature research on the applications of molecular fluorescent and chemi/bioluminescent probes in the second near-infrared window in recent years, this review weighs the advantages and disadvantages of fluorescence and chemi/bioluminescence imaging, and NIR-II fluorophores based on polymethine dyes, D - A - D chromophores, and lanthanide complexes. Besides, this review also provides a very important guidance for expanding the imaging applications of molecular fluorophores in the second near-infrared window.
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Affiliation(s)
- Yanling Yang
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Fan Zhang
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers and iChem, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, China.
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Zapolotsky EN, Qu Y, Babailov SP. Lanthanide complexes with polyaminopolycarboxylates as prospective NMR/MRI diagnostic probes: peculiarities of molecular structure, dynamics and paramagnetic properties. J INCL PHENOM MACRO 2021; 102:1-33. [PMID: 34785985 PMCID: PMC8582344 DOI: 10.1007/s10847-021-01112-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 10/05/2021] [Indexed: 11/29/2022]
Abstract
The paramagnetic lanthanide complexes with polyaminopolycarboxylate (PAPC) ligands attract considerable attention from the standpoint of potential applications thereof as relaxation agents used in medical magnetic resonance imaging (MRI) and in luminescent materials, as well as owing to promising use thereof as paramagnetic labels for studying the properties of biopolymers since they exhibit thermodynamic stability, good solubility in aqueous media and moderate toxicity. For the last decades, the NMR methods have been used to determine the physical and chemical properties of paramagnetic Ln compounds. The studies concerning paramagnetic NMR lanthanide-induced shifts (LISs) in dissolved Ln complexes, as well as the analysis of band shape as a function of temperature make it possible to obtain valuable information on the structure, intra- and intermolecular dynamics and paramagnetic properties thereof. This review is devoted solely to the following features: firstly, the processes of intramolecular dynamics of lanthanide complexes with polyamino-polycarboxylate ligands such as DOTA, EDTA and DTPA and their derivatives studied by NMR; secondly, the LISs of lanthanide complexes with EDTA, DOTA, DTPA and some of their derivatives depending on temperature and pH. Moreover, in this review, for the first time, the dependence of the activation energy of molecular dynamics in complexes with polydentate ligands on the atomic number of the lanthanide cation is analyzed and a monotonic change in energy is detected, which is due to the effect of lanthanide contraction. It should be noted that this phenomenon is quite general and may also appear in the future in many other series of lanthanide complexes with both other multidentate ligands and with bidentate and monodentate ligands. In the future, it is possible to predict the dependence of the properties of certain lanthanide complexes on the ionic radius of the lanthanide cation based on the approaches presented in the review. In this review, we have also presented the dynamic NMR as the main research method widely used to analyze the processes of molecular dynamics, and the structural studies based on the NMR relaxation spectroscopy and LIS analysis.
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Affiliation(s)
- Eugeny N. Zapolotsky
- A.V. Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Av. Lavrentyev 3, Novosibirsk, Russia 630090
| | - Yanyang Qu
- Institute of Chemical Materials, CAEP, P. O. Box 919-311, Mianyang, 621900 Sichun China
| | - Sergey P. Babailov
- A.V. Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Av. Lavrentyev 3, Novosibirsk, Russia 630090
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Mahmudov KT, Huseynov FE, Aliyeva VA, Guedes da Silva MFC, Pombeiro AJL. Noncovalent Interactions at Lanthanide Complexes. Chemistry 2021; 27:14370-14389. [PMID: 34363268 DOI: 10.1002/chem.202102245] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Indexed: 11/10/2022]
Abstract
Lanthanide complexes have attracted a widespread attention due to their structural diversity, as well as multifunctional and tunable properties. The development of lanthanide based functional materials has often relied on the design of the secondary coordination sphere of the corresponding lanthanide complexes. For instance, usually simple lanthanide salts (solvento complexes) do not catalyze effectively organic reactions or provide low yield of the expected product, whereas the presence of a suitable organic ligand with a noncovalent bond donor or acceptor centre (secondary coordination sphere) modifies the symmetry around the metal centre in lanthanide complexes which then successfully can act as catalysts in both homogenous and heterogenous catalysis. In this minireview, we discuss several relevant examples, based on X-ray crystal structure analyses, in which the hydrogen, halogen, chalcogen, pnictogen, tetrel and rare-earth bonds, as well as cation-π, anion-π, lone pair-π, π-π and pancake interactions, are used as a synthon in the decoration of the secondary coordination sphere of lanthanide complexes.
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Affiliation(s)
- Kamran T Mahmudov
- University of Lisbon Higher Technical Institute: Universidade de Lisboa Instituto Superior Tecnico, CQE, R., 1009 - 001, Lisbon, PORTUGAL
| | - Fatali E Huseynov
- Baku State University, Department of Ecology and Soil Sciences, AZERBAIJAN
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Ali B, Stefani HA, Imran M, Irfan A, Assiri MA, Felinto MCFC, Khalid M, Al-Sehemi AG. Synthesis, Structure Study, First-Principles Investigations and Luminescence Properties of Europium and Terbium Complexes. J Fluoresc 2020; 30:1345-55. [PMID: 32870456 DOI: 10.1007/s10895-020-02613-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 08/24/2020] [Indexed: 01/31/2023]
Abstract
The synthesis of 1-benzyl-2-((2-Aminoethyl) amino)-5-oxopyrrolidine-3,4-diyl diacetate (boad), an oxopyrrolidine type ligand; designed to coordinate lanthanides (Eu3+ and Tb3+) to get luminescent material. The target complexes showed good photoluminescence properties, which indicate that this type of compound can be used as sensitizers having luminescence for the green (Tb3+) and red (Eu3+) emission. The obtained results revealed that sensitizer efficiency can be improved by adding ligands like acac (Eu(acac)3, which has also enhanced the luminescence quantum output and period for Eu3+ ions. The ground state geometries were developed by using density functional theory at B3LYP/6-31G** level. The charge transfer analysis and electronic properties were performed. The Europium and Terbium complexes formation with boad ligand was explored based on molecular electrostatic potential, MDC-q charges, and frontier molecular orbitals (FMOs) analysis.
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Aragón-Muriel A, Liscano-Martínez Y, Rufino-Felipe E, Morales-Morales D, Oñate-Garzón J, Polo-Cerón D. Synthesis, biological evaluation and model membrane studies on metal complexes containing aromatic N,O-chelate ligands. Heliyon 2020; 6:e04126. [PMID: 32548326 PMCID: PMC7286978 DOI: 10.1016/j.heliyon.2020.e04126] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/15/2020] [Accepted: 05/29/2020] [Indexed: 02/06/2023] Open
Abstract
Novel lanthanide (Ln) compounds [Ln(L)2]Cl.xH2O (Ln = La3+, Ce3+, Sm3+) containing aromatic N,O-chelate ligands [HL1 = 4-amino-2-(1H-benzimidazol-2-yl)phenol; HL2 = 5-amino-2-(1H-benzimidazol-2-yl)phenol] have been synthesized and structurally characterized by elemental analysis, NMR and IR spectroscopy, molar conductance measurements, and mass spectrometry (MS). The spectroscopic data suggested that the benzimidazolyl-phenol ligands act as N,O-chelate ligands through the iminic nitrogen and phenolic oxygen atoms. Elemental analysis indicated that lanthanide compounds were formed in a 1:2 stoichiometry (metal:ligand). In vitro biological evaluation was carried out using these complexes, exhibiting moderate cytotoxicity against six different human tumor cell lines (U251, human glioblastoma; HCT-15, colorectal carcinoma; MCF-7, breast epithelial adenocarcinoma; PC-3, prostate cancer; K562, myelogenous leukemia; SKLU-1, lung carcinoma) and lower toxicity against a non-cancerous cell line (COS-7, primate kidney). In addition, the antibacterial activity of the compounds was assessed against two gram-positive strains (Staphylococcus aureus ATCC 25923, Listeria monocytogenes ATCC 19115) and two gram-negative strains (Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27583) using the microdilution method. The results obtained show that the metal complexes exhibit higher biological activity than the free ligands, confirming a synergistic effect. Further benzimidazolyl-phenol derivatives were explored for the detection of bacteria using fluorescence imaging studies. Interestingly, the fluorescent properties of these compounds make them potential candidates to monitor the morphology of bacteria at different compound concentrations. Hence, the interaction of the ligand and complexes with model membranes mimicking those of bacteria was studied by using differential scanning calorimetry (DSC) and molecular dynamics (MD), showing that both compounds decreased the enthalpy of transition in two model membranes as the concentration of the compounds increased. In addition, the main transition temperature was slightly reduced as a result of these interactions.
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Affiliation(s)
- Alberto Aragón-Muriel
- Laboratorio de Investigación en Catálisis y Procesos (LICAP), Facultad de Ciencias Naturales y Exactas, Departamento de Química, Universidad del Valle, Cali 760001, Colombia
| | - Yamil Liscano-Martínez
- Grupo de Genética, Regeneración y Cáncer, Facultad de Ciencias Naturales y Exactas, Instituto de Biología, Universidad de Antioquia, Medellín 050010, Colombia
| | - Ernesto Rufino-Felipe
- Instituto de Química, Universidad Nacional Autónoma de México, Cd. Universitaria, Circuito Exterior, Coyoacán, México DF 04510, Mexico
| | - David Morales-Morales
- Instituto de Química, Universidad Nacional Autónoma de México, Cd. Universitaria, Circuito Exterior, Coyoacán, México DF 04510, Mexico
| | - Jose Oñate-Garzón
- Grupo de Investigación en Química y Biotecnología (QUIBIO), Facultad de Ciencias Básicas, Universidad Santiago de Cali, Cali 760031, Colombia
| | - Dorian Polo-Cerón
- Laboratorio de Investigación en Catálisis y Procesos (LICAP), Facultad de Ciencias Naturales y Exactas, Departamento de Química, Universidad del Valle, Cali 760001, Colombia
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Peng XX, Zhu XF, Zhang JL. Near Infrared (NIR) imaging: Exploring biologically relevant chemical space for lanthanide complexes. J Inorg Biochem 2020; 209:111118. [PMID: 32502875 DOI: 10.1016/j.jinorgbio.2020.111118] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/13/2020] [Accepted: 05/17/2020] [Indexed: 02/08/2023]
Abstract
Near Infrared (NIR) imaging agents are extensively used in the biological or preclinical treatment and diagnosis of a wide range of diseases including cancers and tumors. The current arsenal of NIR compounds are most constituted by organic dyes, polymers, inorganic nanomaterials, whereas Ln molecular complexes explore an alternative approach to design NIR probes that are potentially bring new molecular toolkits into the biomedicine. In this review, NIR imaging agents are categorized according to their molecular sizes, constitution and the key properties and features of each class of compounds are briefly defined wherever possible. To better elucidate the features of Ln complexes, we provide a succinct understanding of sensitization process and molecular Ln luminescence at a mechanistic level, which may help to deliver new insights to design NIR imaging probes. Finally, we used our work on NIR ytterbium (Yb3+) probes as an example to raise awareness of exploring biologically relevant chemical space for lanthanide complexes as chemical entities for biological activity.
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Affiliation(s)
- Xin-Xin Peng
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China
| | - Xiao-Fei Zhu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China; School of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, PR China
| | - Jun-Long Zhang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China.
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Li QF, Ge GW, Sun Y, Yu M, Wang Z. Influence of counter ions on structure, morphology, thermal stability of lanthanide complexes containing dipicolinic acid ligand. Spectrochim Acta A Mol Biomol Spectrosc 2019; 214:333-338. [PMID: 30798215 DOI: 10.1016/j.saa.2019.02.056] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 11/28/2018] [Accepted: 02/16/2019] [Indexed: 06/09/2023]
Abstract
Two kinds of lanthanide coordination polymers formed by dipicolinic acid with lanthanide ions were synthesized by varying the counter ions. And their crystal structures, morphology and thermal stabilities were measured and compared. X-ray single-crystal diffraction analysis reveals that Na3[Ln(DPA)3] (Ln = Tb or Eu) stretches to a rigid network by means of bridging Na+ ion. Moreover, Na3[Ln(DPA)]3 exhibits good thermal stability and luminescent properties, and its optical properties can be remained even after heating at 200 °C more than 3 days. However, when Na+ in Na3[Ln(DPA)3] was replaced with NH4+, i.e., (NH4)3[Ln(DPA)3] with a supramolecular structure based on π-π stacking and other weak interactions, shows relatively poor thermal stability which leads to deterioration of their luminescence properties after heating treatment. This result confirms that the rigid frame structure of Na3[Ln(DPA)]3 plays a crucial role in improving its thermal stability and keeping its highly luminescent quantum efficiency.
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Affiliation(s)
- Qing-Feng Li
- The Key Laboratory of Rare Earth Functional Materials and Applications, Henan Key Laboratory of Rare Earth Functional Materials, Zhoukou Normal University, Zhoukou 466001, Henan, China; International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, Zhoukou 466001, Henan, China.
| | - Gen-Wu Ge
- The Key Laboratory of Rare Earth Functional Materials and Applications, Henan Key Laboratory of Rare Earth Functional Materials, Zhoukou Normal University, Zhoukou 466001, Henan, China; International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, Zhoukou 466001, Henan, China
| | - Yanke Sun
- The Key Laboratory of Rare Earth Functional Materials and Applications, Henan Key Laboratory of Rare Earth Functional Materials, Zhoukou Normal University, Zhoukou 466001, Henan, China; International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, Zhoukou 466001, Henan, China
| | - Mingshen Yu
- The Key Laboratory of Rare Earth Functional Materials and Applications, Henan Key Laboratory of Rare Earth Functional Materials, Zhoukou Normal University, Zhoukou 466001, Henan, China; International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, Zhoukou 466001, Henan, China
| | - Zhenling Wang
- The Key Laboratory of Rare Earth Functional Materials and Applications, Henan Key Laboratory of Rare Earth Functional Materials, Zhoukou Normal University, Zhoukou 466001, Henan, China; International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, Zhoukou 466001, Henan, China.
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12
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Ain Q, Pandey SK, Pandey OP, Sengupta SK. Synthesis, spectroscopic, thermal and antimicrobial studies of neodymium(III) and samarium(III) complexes derived from tetradentate ligands containing N and S donor atoms. Spectrochim Acta A Mol Biomol Spectrosc 2015; 140:27-34. [PMID: 25579799 DOI: 10.1016/j.saa.2014.12.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Revised: 12/02/2014] [Accepted: 12/15/2014] [Indexed: 06/04/2023]
Abstract
Trivalent lanthanide complexes of the type [Ln(L)Cl(H2O)2] (where Ln=Nd(III) or Sm(III) and LH2=Schiff bases derived by the condensation of 3-(phenyl/substitutedphenyl)-4-amino-5-mercapto-1,2,4-triazole with diacetyl/benzil) have been synthesized by the reactions of anhydrous lanthanide(III) chloride with Schiff bases in methanol. The structures of the complexes have been proposed on the basis of elemental analysis, electrical conductance, magnetic moment, spectroscopic measurements (IR, 1H, 13C NMR and UV-vis spectra) and X-ray diffraction studies. The spectral data reveal that the Schiff base ligands behave as dibasic tetradentate chelating agents having coordination sites at two thiol sulfur atoms and two azomethine nitrogen atoms. The presence of coordinated water in metal complexes was confirmed by thermal and IR data of the complexes. All the Schiff bases and their metal complexes have also been screened for their antibacterial activity against Bacillus subtilis, Staphylococcus aureus and antifungal activities against Aspergillus niger, Curvularia pallescens and Colletotrichum capsici.
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Affiliation(s)
- Qurratul Ain
- Chemistry Department, D.D.U. Gorakhpur University, Gorakhpur 273009, India
| | - S K Pandey
- Chemistry Department, D.D.U. Gorakhpur University, Gorakhpur 273009, India
| | - O P Pandey
- Chemistry Department, D.D.U. Gorakhpur University, Gorakhpur 273009, India
| | - S K Sengupta
- Chemistry Department, D.D.U. Gorakhpur University, Gorakhpur 273009, India.
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13
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Mallakpour S, Behnamfar MT, Dinari M, Hadadzadeh H. Preparation of new fluorophore lanthanide complexes-Cloisite nanohybrids using the tricationic Pr(III), Gd(III) and Dy(III) complexes with 9,10-phenanthrenequinone. Spectrochim Acta A Mol Biomol Spectrosc 2015; 137:1206-1212. [PMID: 25305612 DOI: 10.1016/j.saa.2014.08.136] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 08/31/2014] [Indexed: 06/04/2023]
Abstract
New fluorophore lanthanide complexes-Cloisite (LCs-C) nanohybrids have been prepared by the intercalation reaction of Cloisite Na(+) with the tricationic lanthanide complexes (1-3), [M(PQ)3(DMF)2(H2O)2](3+) (M=Pr(III) (1), Gd(III) (2), and Dy(III) (3); PQ=9,10-phenanthrenequinone), in aqueous solutions. The X-ray diffraction analysis of the modified clays (LCs-C) showed an increase in the interlayer distance (d) as compared to the pure Cloisite Na(+). Field-emission scanning electron microscopy (FE-SEM) was used to study the morphology of the modified clays and the results were demonstrated a homogeneous morphology for the nanohybrids. The thermal behavior of the LCs-C nanohybrids was investigated using thermogravimetric analysis. Solid-state fluorescence properties of the LCs-C nanohybrids were also investigated. The results show that all tricationic complexes have a significant fluorescence at room temperature when the complexes are adsorbed onto Cloisite.
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Affiliation(s)
- Shadpour Mallakpour
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran; Nanotechnology and Advanced Materials Institute, Isfahan University of Technology, Isfahan 84156-83111, Iran; Center of Excellence in Sensors and Green Chemistry, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, IR, Iran.
| | | | - Mohammad Dinari
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran; Nanotechnology and Advanced Materials Institute, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Hassan Hadadzadeh
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran
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14
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Yan ZZ, Hou N, Wang CM. Synthesis, characterization and luminescent properties of lanthanide complexes with a novel multipodal ligand. Spectrochim Acta A Mol Biomol Spectrosc 2015; 137:1265-1269. [PMID: 25305620 DOI: 10.1016/j.saa.2014.09.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 09/13/2014] [Accepted: 09/15/2014] [Indexed: 06/04/2023]
Abstract
Solid complexes of lanthanide nitrates with an novel multipodal ligand, 1,2,4,5-tetramethyl-3,6-bis{N,N-bis[((2'-furfurylaminoformyl)phenoxyl)ethyl]-aminomethyl}-benzene (L) have been synthesized and characterized by elemental analysis, infrared spectra and molar conductivity measurements. At the same time, the luminescent properties of the Sm(III), Eu(III), Tb(III) and Dy(III) nitrate complexes in solid state were investigated. Under the excitation of UV light, these complexes exhibited characteristic emission of central metal ions. The lowest triplet state energy level of the ligand indicates that the triplet state energy level (T1) of the ligand matches better the resonance level of Tb(III) than other lanthanide ions.
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Affiliation(s)
- Zhen-Zhong Yan
- Department of Chemistry, Zhejiang University, Zhejiang, Hangzhou 310027, China; Department of Pharmaceutics and Chemical Engineering, Taizhou University, Zhejiang, Taizhou 318000, China.
| | - Na Hou
- Department of Pharmaceutics and Chemical Engineering, Taizhou University, Zhejiang, Taizhou 318000, China
| | - Cong-Min Wang
- Department of Chemistry, Zhejiang University, Zhejiang, Hangzhou 310027, China.
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15
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Essawy AA, Afifi MA, Moustafa H, El-Medani SM. DFT calculations, spectroscopic, thermal analysis and biological activity of Sm(III) and Tb(III) complexes with 2-aminobenzoic and 2-amino-5-chloro-benzoic acids. Spectrochim Acta A Mol Biomol Spectrosc 2014; 131:388-397. [PMID: 24835942 DOI: 10.1016/j.saa.2014.04.134] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 03/16/2014] [Accepted: 04/14/2014] [Indexed: 06/03/2023]
Abstract
The complexes of Sm(III) and Tb(III) with 2-aminobenzoic acid (anthranilic acid, AA) and 2-amino-5-chlorobenzoic acid (5-chloroanthranilic acid, AACl) were synthesized and characterized based on elemental analysis, IR and mass spectroscopy. The data are in accordance with 1:3 [Metal]:[Ligand] ratio. On the basis of the IR analysis, it was found that the metals were coordinated to bidentate anthranilic acid via the ionised oxygen of the carboxylate group and to the nitrogen of amino group. While in 5-chloroanthranilic acid, the metals were coordinated oxidatively to the bidentate carboxylate group without bonding to amino group; accordingly, a chlorine-affected coordination and reactivity-diversity was emphasized. Thermal analyses (TGA) and biological activity of the complexes were also investigated. Density Functional Theory (DFT) calculations at the B3LYP/6-311++G (d,p)_ level of theory have been carried out to investigate the equilibrium geometry of the ligand. The optimized geometry parameters of the complexes were evaluated using SDDALL basis set. Moreover, total energy, energy of HOMO and LUMO and Mullikan atomic charges were calculated. In addition, dipole moment and orientation have been performed and discussed.
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Affiliation(s)
- Amr A Essawy
- Chemistry Department, Faculty of Science, Fayoum University, 63514 Fayoum, Egypt
| | - Manal A Afifi
- Chemistry Department, Faculty of Science, Fayoum University, 63514 Fayoum, Egypt
| | - H Moustafa
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt.
| | - S M El-Medani
- Chemistry Department, Faculty of Science, Fayoum University, 63514 Fayoum, Egypt
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16
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Gálico DA, Lahoud MG, Davolos MR, Frem RCG, Fraga-Silva TFC, Venturini J, Arruda MSP, Bannach G. Spectroscopic, luminescence and in vitro biological studies of solid ketoprofen of heavier trivalent lanthanides and yttrium(III). J Inorg Biochem 2014; 140:160-6. [PMID: 25108188 DOI: 10.1016/j.jinorgbio.2014.07.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 07/10/2014] [Accepted: 07/10/2014] [Indexed: 11/30/2022]
Abstract
Solid-state compounds of the general formulae [ML3] (M=Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y; L=ketoprofen) were synthesized and characterized using infrared, diffuse reflectance and luminescence spectroscopies. IR data suggested that the carboxylate group in ketoprofen is coordinated to the metals as a bidentate ligand. The triplet state energy level was determined using the Gd(3+) complex, which exhibited a ketoprofen blue luminescence when excited in the UV region. The compound containing Tb(3+) ion was sensitized by the ligand and emitted in the green region of the visible spectrum. On the other hand, for the analogous species containing the dysprosium ion, a competition for luminescence between the Dy(3+) and the ligand levels was observed. Finally, Tm(3+) complex exhibits only ligand luminescence. These optical behaviors are discussed based on rare earth energy diagrams. In addition, the compounds were evaluated for their anti-inflammatory activities. All the compounds showed a higher production of H2O2 and IL-10 than the ketoprofen, suggesting that the compounds exhibited an immunomodulatory effect and this opens up new perspectives for immunotherapeutic approaches.
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Affiliation(s)
- D A Gálico
- UNESP - Univ Estadual Paulista, Faculdade de Ciências, Departamento de Química, Bauru, SP CEP 17033-260, Brazil
| | - M G Lahoud
- UNESP - Univ Estadual Paulista, Instituto de Química, Departamento de Química Inorgânica, Araraquara, SP CEP 14801-970, Brazil
| | - M R Davolos
- UNESP - Univ Estadual Paulista, Instituto de Química, Departamento de Química Inorgânica, Araraquara, SP CEP 14801-970, Brazil
| | - R C G Frem
- UNESP - Univ Estadual Paulista, Instituto de Química, Departamento de Química Inorgânica, Araraquara, SP CEP 14801-970, Brazil
| | - T F C Fraga-Silva
- UNESP - Univ Estadual Paulista, Instituto de Biociências, Departamento de Microbiologia e Imunologia, Botucatu, SP CEP 18618-970, Brazil
| | - J Venturini
- UNESP - Univ Estadual Paulista, Faculdade de Ciências, Departamento de Ciências Biológicas, Bauru, SP CEP 17033-260, Brazil
| | - M S P Arruda
- UNESP - Univ Estadual Paulista, Faculdade de Ciências, Departamento de Ciências Biológicas, Bauru, SP CEP 17033-260, Brazil
| | - G Bannach
- UNESP - Univ Estadual Paulista, Faculdade de Ciências, Departamento de Química, Bauru, SP CEP 17033-260, Brazil.
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17
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He SM, Sun SJ, Zheng JR, Zhang JJ. Molecular spectrum of lanthanide complexes with 2,3-dichlorobenzoic acid and 2,2-bipyridine. Spectrochim Acta A Mol Biomol Spectrosc 2014; 123:211-215. [PMID: 24394535 DOI: 10.1016/j.saa.2013.12.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 11/29/2013] [Accepted: 12/03/2013] [Indexed: 06/03/2023]
Abstract
With 2,3-dichlorobenzoic acid as the first ligands and 2,2'-bipyridine as the second ligands, the lanthanide complexes [Ln(2,3-DClBA)3bipy]2 [Ln=Nd(a), Sm(b), Eu(c), Tb(d), Dy(e), Ho(f)] have been synthesized. By using Infrared (IR) and Raman (R) spectra, the characteristics of the groups can be identified. The bands of lanthanide complexes have been analyzed and attributed, and clearly demonstrated with the use of the complementarity of IR and R. The experiment reveals that the bands of complexes are affected by lanthanide elements (Ln). The frequency of stretching vibration and breathing vibration of ring, together with the stretching vibration of the carbonyl group (νCO), tends to be rising as the atomic number of lanthanide increasing. Meanwhile, crystallography data demonstrate that the six carbonyl groups have different bond length and bond angle, which can lead to different vibration frequency. The second derivatives of IR show that there are multiple vibration frequencies existing in the symmetrical stretching vibration of the carbonyl group (νsCO). Therefore the second derivative of IR spectrum is a characteristic band of different coordination modes of carbonyl group.
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Affiliation(s)
- Shu-Mei He
- Testing and Analysis Center, Hebei Normal University, Shijiazhuang 050024, PR China.
| | - Shu-Jing Sun
- No.1 High School of Dezhou, Dezhou 253000, PR China
| | - Jun-Ru Zheng
- Testing and Analysis Center, Hebei Normal University, Shijiazhuang 050024, PR China
| | - Jian-Jun Zhang
- Testing and Analysis Center, Hebei Normal University, Shijiazhuang 050024, PR China
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18
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Shul'gin VF, Konnik OV, Abkhairova SV, Gusev AN, Meshkova SB, Kiriyak AV, Rusanov EB, Hasegawa M, Linert W. Anionic lanthanide complexes with 3-methyl-1-phenyl-4-formylpyrazole-5-one and hydroxonium as counter ion. Inorganica Chim Acta 2013; 402:33-38. [PMID: 23805004 PMCID: PMC3688536 DOI: 10.1016/j.ica.2013.03.044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 03/28/2013] [Indexed: 11/30/2022]
Abstract
Anionic Ln(III) complexes with 3-methyl-1-phenyl-4-formylpyrazole-5-one. X-ray crystallographic analysis of Ln(III) complexes. Ion luminescence of Ln(III) in solid state. The rare case of stronger Sm(III) luminescence compared with an analogs Eu(III) compound.
A series of [H3O]+[LnL4]−·nH2O complexes (n = 1–3, Ln = Nd, (1), Sm (2), Eu (3), Tb (4); HL = 3-methyl-1-phenyl-4-formylpyrazole-5-one) were synthesized and characterized. The structures of the SmIII and EuIII complexes were investigated by X-ray diffraction. The isostructutal crystalls 2 and 3 consist the tetrakis [LnL4]− anions which are linked by H-bonding with the hydroxonium counter-ion and water molecules. The lanthanide ion is situated in the center of distorted tetragonal antiprism formed by eight oxygen atoms of 4-formyl-5-hydroxypyrazolonate anions. The TbIII and SmIII complexes show strong luminescence in solid state, whereas the EuIII and NdIII complexes show low luminescence activity.
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Affiliation(s)
- Victor F Shul'gin
- Taurida National V.I. Vernadsky University, Simferopol 95007, Ukraine
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