1
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Dual-Labelling Strategies for Nuclear and Fluorescence Molecular Imaging: Current Status and Future Perspectives. Pharmaceuticals (Basel) 2022; 15:ph15040432. [PMID: 35455430 PMCID: PMC9028399 DOI: 10.3390/ph15040432] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 03/27/2022] [Accepted: 03/28/2022] [Indexed: 12/13/2022] Open
Abstract
Molecular imaging offers the possibility to investigate biological and biochemical processes non-invasively and to obtain information on both anatomy and dysfunctions. Based on the data obtained, a fundamental understanding of various disease processes can be derived and treatment strategies can be planned. In this context, methods that combine several modalities in one probe are increasingly being used. Due to the comparably high sensitivity and provided complementary information, the combination of nuclear and optical probes has taken on a special significance. In this review article, dual-labelled systems for bimodal nuclear and optical imaging based on both modular ligands and nanomaterials are discussed. Particular attention is paid to radiometal-labelled molecules for single-photon emission computed tomography (SPECT) and positron emission tomography (PET) and metal complexes combined with fluorescent dyes for optical imaging. The clinical potential of such probes, especially for fluorescence-guided surgery, is assessed.
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2
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Utochnikova VV, Vatsadze IA, Tsymbarenko DM, Goloveshkin AS, Vatsadze SZ. Europium complexes with dinitropyrazole: unusual luminescence thermal behavior and irreversible temperature sensing. Phys Chem Chem Phys 2021; 23:25480-25484. [PMID: 34779446 DOI: 10.1039/d1cp03924e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Europium 3,5-dinitropyrazole complexes demonstrate an unusual luminescence behavior upon heating, i.e. there is a noticeable increase of the luminescence intensity beyond a temperature of 200 °C. We propose and successfully demonstrate the possibility of using this phenomenon for sensing overheating above this temperature. An on/off ratio of 37 is reached.
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Affiliation(s)
- Valentina V Utochnikova
- M.V. Lomonosov Moscow State University, Leninskie Gory, 1, Build. 3, 119991, Moscow, Russia.
| | - Irina A Vatsadze
- N.D. Zelinsky Institute of Organic Chemistry RAS, Leninsky Prosp. 47, 119991, Moscow, Russia
| | - Dmitry M Tsymbarenko
- M.V. Lomonosov Moscow State University, Leninskie Gory, 1, Build. 3, 119991, Moscow, Russia.
| | - Alexander S Goloveshkin
- A.N. Nesmeyanov Institute of Organoelement Compounds RAS, Vavilova St. 28, 119991, Moscow, Russia
| | - Sergey Z Vatsadze
- N.D. Zelinsky Institute of Organic Chemistry RAS, Leninsky Prosp. 47, 119991, Moscow, Russia
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3
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Briganti M, Santanni F, Tesi L, Totti F, Sessoli R, Lunghi A. A Complete Ab Initio View of Orbach and Raman Spin-Lattice Relaxation in a Dysprosium Coordination Compound. J Am Chem Soc 2021; 143:13633-13645. [PMID: 34465096 PMCID: PMC8414553 DOI: 10.1021/jacs.1c05068] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
![]()
The unique electronic
and magnetic properties of lanthanide molecular
complexes place them at the forefront of the race toward high-temperature
single-molecule magnets and magnetic quantum bits. The design of compounds
of this class has so far being almost exclusively driven by static
crystal field considerations, with an emphasis on increasing the magnetic
anisotropy barrier. Now that this guideline has reached its maximum
potential, a deeper understanding of spin-phonon relaxation mechanisms
presents itself as key in order to drive synthetic chemistry beyond
simple intuition. In this work, we compute relaxation times fully ab initio and unveil the nature of all spin-phonon relaxation
mechanisms, namely Orbach and Raman pathways, in a prototypical Dy
single-molecule magnet. Computational predictions are in agreement
with the experimental determination of spin relaxation time and crystal
field anisotropy, and show that Raman relaxation, dominating at low
temperature, is triggered by low-energy phonons and little affected
by further engineering of crystal field axiality. A comprehensive
analysis of spin-phonon coupling mechanism reveals that molecular
vibrations beyond the ion’s first coordination shell can also
assume a prominent role in spin relaxation through an electrostatic
polarization effect. Therefore, this work shows the way forward in
the field by delivering a novel and complete set of chemically sound
design rules tackling every aspect of spin relaxation at any temperature.
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Affiliation(s)
- Matteo Briganti
- Department of Chemistry "Ugo Schiff", INSTM Research Unit, Università degli Studi di Firenze, 50019 Sesto F.no, Italy
| | - Fabio Santanni
- Department of Chemistry "Ugo Schiff", INSTM Research Unit, Università degli Studi di Firenze, 50019 Sesto F.no, Italy
| | - Lorenzo Tesi
- Department of Chemistry "Ugo Schiff", INSTM Research Unit, Università degli Studi di Firenze, 50019 Sesto F.no, Italy
| | - Federico Totti
- Department of Chemistry "Ugo Schiff", INSTM Research Unit, Università degli Studi di Firenze, 50019 Sesto F.no, Italy
| | - Roberta Sessoli
- Department of Chemistry "Ugo Schiff", INSTM Research Unit, Università degli Studi di Firenze, 50019 Sesto F.no, Italy
| | - Alessandro Lunghi
- School of Physics, AMBER and CRANN Institute, Trinity College, Dublin 2, Ireland
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4
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Liu ML, Shi Q, Liu LF, Li WB. Lanthanide-Aromatic Iminodiacetate Frameworks with Helical Tubes: Structure, Properties, and Low-Temperature Heat Capacity. ACS OMEGA 2021; 6:10475-10485. [PMID: 34056200 PMCID: PMC8153764 DOI: 10.1021/acsomega.1c01052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 04/01/2021] [Indexed: 06/12/2023]
Abstract
A series of lanthanide coordination polymers [LnL(H2O)2] n [Ln = Pr (1), Nd (2), Sm (3), Eu (4), and Gd (5), H3L = N-(4-carboxy-benzyl)iminodiacetic acid] was hydrothermally prepared and structurally characterized. All the five compounds have been confirmed as 3D Ln-CPs with one-dimensional helical tunnels composed of four helical chains, although there are different coordination geometries around Ln3+. Enantiomeric helixes in 1-3, and absolute left-handed and right-handed helical chains in 4 and 5, respectively, lead to different tunnel spaces. Their conformations can also be featured by different space groups and unit cell dimensions. Photoluminescence measurement on 3 and 4 show characteristic emission peaks of Sm3+ and Eu3+ ions, respectively. The low-temperature heat capacity of 1-4 has been investigated in the temperature range of 1.9-300 K. Their heat capacity values are nearly equal below 10 K and display a crossover with the value order C p,m(2) > C p,m(1) ≈ C p,m(4) > C p,m(3) above 10 K. The measured heat capacities have been fitted, and the corresponding thermodynamic functions were consequently calculated based on the fitting parameters. The standard molar entropies at 298.15 K have been determined to be (415.71 ± 4.16), (451.32 ± 4.51), (308.53 ± 3.09), and (407.62 ± 4.08) J·mol-1·K-1 for 1, 2, 3, and 4, respectively.
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Affiliation(s)
- Ming-li Liu
- College
of Chemistry and Chemical Engineering, Dezhou
University, Dezhou 253023, P. R. China
| | - Quan Shi
- Thermochemistry
Laboratory, Liaoning Province Key Laboratory of Thermochemistry for
Energy and Materials, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy
of Sciences, Dalian 116023, P. R. China
| | - Lei-fang Liu
- College
of Chemistry and Chemical Engineering, Dezhou
University, Dezhou 253023, P. R. China
| | - Wen-bo Li
- College
of Chemistry and Chemical Engineering, Dezhou
University, Dezhou 253023, P. R. China
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5
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Akbar R, Baral M, Kanungo BK. Spectroscopic, photophysical, solution thermodynamics and computational study of europium and terbium complexes with a flexible quinolinol-based symmetric tripodal chelator. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 247:119124. [PMID: 33161269 DOI: 10.1016/j.saa.2020.119124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/14/2020] [Accepted: 10/16/2020] [Indexed: 06/11/2023]
Abstract
Coordination behaviour and photonic properties of a flexible tripodal multidentate ligand, 5,5',5''-(Cyclohexane-1,3,5-triyltris(oxy))tris(methylene)triquinolin-8-ol (CYTOM5OX), with Eu and Tb ions were explored through potentiometric, UV-visible and fluorescence spectrophotometric methods. The interaction of tripod towards the lanthanides has been examined for thermodynamic equilibrium, photophysical behavior, and time-resolved luminescence measurements. Besides, a theoretically empirical method followed by quantum mechanical treatment of these chelates has also been summarized. A noticeable change in the electronic spectra of these complexes disclose CYTOM5OX as a pH-sensitive optical sensor for lanthanides detection; also, a strong green fluorescence allows simultaneous sensing in the visible region in a competitive medium. The intense fluorescence intermittently gets quenched under acidic and basic conditions due to photoinduced intramolecular electron transfer from the excited 8-hydroxyquinoline (8-HQ) moiety to the metal ion. The thermodynamically stable Ln3+ complexes in aqueous solution show stability constants in the range log β110 = 33-35 and pLn3+ in the range of 21-22. The hydration number that was predicted by the coordination scan was substantiated by lifetime measurements reveal presence of coordinated water molecules in Eu(CYTOM5OX) and Tb(CYTOM5OX) complexes. Theoretical spectra were also calculated by ZINDO/s methodology at single excitations (CIS) level on PM7 as sparkle energy-minimized geometries.
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Affiliation(s)
- Rifat Akbar
- Department of Chemistry, Sant Longowal Institute of Engineering & Technology, Longowal, Punjab 148106, India
| | - Minati Baral
- Department of Chemistry, National Institute of Technology Kurukshetra, Haryana 136119, India
| | - B K Kanungo
- Department of Chemistry, Sant Longowal Institute of Engineering & Technology, Longowal, Punjab 148106, India.
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6
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Chen WT. Synthesis, structure, photophysical properties, and energy transfer mechanism of an erbium–mercury compound. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519820915579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A hydrothermal reaction leads to the formation of a novel erbium–mercury compound [Er(IA)3(H3O)(H2O)] n(0.5 nHg2I6) (1) (HIA = isonicotinic acid). The compound has been characterized by single-crystal X-ray diffraction. It is characteristic of a one-dimensional chain-like structure and a two-dimensional supramolecular layer. A solid-state photoluminescence experiment reveals that this compound displays upconversion green photoluminescence. The photoluminescence emission peaks can be attributed to the 4 G11/2 → 4 I15/2, 4 F7/2 → 4 I15/2, and 2 H11/2 → 4 I15/2 of the Er3+ ions. The energy transfer mechanism is consistent with the energy-level diagrams of the erbium ions and isonicotinic acid ligand. This compound possesses Commission Internationale de I'Éclairage chromaticity coordinates of 0.1755 and 0.5213. A solid-state diffuse reflectance measurement reveals that this compound features a narrow optical band gap of 1.97 eV.
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Affiliation(s)
- Wen-Tong Chen
- Institute of Applied Chemistry, School of Chemistry and Chemical Engineering, Jiangxi Province Key Laboratory of Coordination Chemistry, Humic Acid Utilization Engineering Research Center of Jiangxi Province, Jinggangshan University, Ji’an, Jiangxi, P. R. of China
- Department of Ecological and Resources Engineering, Fujian Key Laboratory of Eco-Industrial Green Technology, Wuyi University, Wuyishan, P.R. China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, P.R. China
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7
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Trupp L, Bruttomesso AC, Eliseeva SV, Petoud S, Ramírez JA, Barja BC. A Six-Armed Phenhomazine Ligand with a Potential "Turn-Off" Copper(II) Sensing Capability through Terbium(III) Luminescence Quenching. Chemistry 2020; 26:12645-12653. [PMID: 32501589 DOI: 10.1002/chem.202002282] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Indexed: 01/22/2023]
Abstract
Herein, the design, synthesis, and characterization of a phenhomazine ligand are described. The ligand has six pendant acetate arms designed for the combined coordination of copper(II) and lanthanide(III) ions, with the perspective of developing a "turn-off" copper sensor. The key step for the ligand preparation was the one-step endomethylene bridge fission of a diamino Tröger's base with a concomitant alkylation. Fluorescence and absorption spectroscopies as well as nuclear magnetic resonance (NMR) experiments were performed to analyze and understand the coordination properties of the ligand. Transition metal coordination was driven by the synergistic effect of the free nitrogen atoms of the diazocinic core and the two central acetate arms attached to those nitrogen atoms, whereas lanthanide coordination is performed by the external acetate arms, presumably forming a self-assembled 2:2 metallosupramolecular structure. The terbium complex shows the typical green emission with narrow bands and long luminescence lifetimes. The luminescence quenching produced by the presence of copper(II) ions was analyzed. This work sets, therefore, a starting point for the development of a phenhomazine-based "turn-off" copper(II) sensor.
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Affiliation(s)
- Leandro Trupp
- Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de, Buenos Aires, Int. Güiraldes 2160, Ciudad Universitaria, Buenos Aires, 1428, Argentina.,Instituto de Química Física de los Materiales, Medio Ambiente y, Energía (INQUIMAE), CONICET-Universidad de Buenos Aires, Int. Güiraldes 2160, Ciudad Universitaria, Buenos Aires, 1428, Argentina.,Departamento de Química Orgánica, Facultad de, Ciencias Exactas y Naturales, Universidad de Buenos Aires, Int. Güiraldes 2160, Ciudad Universitaria, Buenos Aires, 1428, Argentina.,Unidad de Microanálisis y Métodos Físicos Aplicados a Química Orgánica, (UMYMFOR), CONICET-Universidad de Buenos Aires, Int. Güiraldes 2160, Ciudad Universitaria, Buenos Aires, 1428, Argentina.,Centre de Biophysique Moléculaire, Centre National de la, Recherche Scientifique (CNRS), UPR 4301, 45071, Orléans Cedex 2, France
| | - Andrea C Bruttomesso
- Departamento de Química Orgánica, Facultad de, Ciencias Exactas y Naturales, Universidad de Buenos Aires, Int. Güiraldes 2160, Ciudad Universitaria, Buenos Aires, 1428, Argentina.,Unidad de Microanálisis y Métodos Físicos Aplicados a Química Orgánica, (UMYMFOR), CONICET-Universidad de Buenos Aires, Int. Güiraldes 2160, Ciudad Universitaria, Buenos Aires, 1428, Argentina
| | - Svetlana V Eliseeva
- Centre de Biophysique Moléculaire, Centre National de la, Recherche Scientifique (CNRS), UPR 4301, 45071, Orléans Cedex 2, France
| | - Stéphane Petoud
- Centre de Biophysique Moléculaire, Centre National de la, Recherche Scientifique (CNRS), UPR 4301, 45071, Orléans Cedex 2, France
| | - Javier A Ramírez
- Departamento de Química Orgánica, Facultad de, Ciencias Exactas y Naturales, Universidad de Buenos Aires, Int. Güiraldes 2160, Ciudad Universitaria, Buenos Aires, 1428, Argentina.,Unidad de Microanálisis y Métodos Físicos Aplicados a Química Orgánica, (UMYMFOR), CONICET-Universidad de Buenos Aires, Int. Güiraldes 2160, Ciudad Universitaria, Buenos Aires, 1428, Argentina
| | - Beatriz C Barja
- Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de, Buenos Aires, Int. Güiraldes 2160, Ciudad Universitaria, Buenos Aires, 1428, Argentina.,Instituto de Química Física de los Materiales, Medio Ambiente y, Energía (INQUIMAE), CONICET-Universidad de Buenos Aires, Int. Güiraldes 2160, Ciudad Universitaria, Buenos Aires, 1428, Argentina
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8
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Lear AR, Lenters J, Patterson MG, Staples RJ, Werner EJ, Biros SM. Two Beta-Phosphorylamide Compounds as Ligands for Sm 3+, Eu 3+, and Tb 3+: X-ray Crystallography and Luminescence Properties. Molecules 2020; 25:molecules25132971. [PMID: 32605282 PMCID: PMC7411983 DOI: 10.3390/molecules25132971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/24/2020] [Accepted: 06/26/2020] [Indexed: 12/02/2022] Open
Abstract
This paper describes the synthesis of two beta-phosphorylamide ligands and their coordination chemistry with the Ln ions Tb3+, Eu3+, and Sm3+. Both the ligands and Ln complexes were characterized by IR, NMR, MS, and X-ray crystallography. The luminescence properties of the Tb3+ and Eu3+ complexes were also characterized, including the acquisition of lifetime decay curves. In the solid state, the Tb3+ and Sm3+ ligand complexes were found to have a 2:2 stoichiometry when analyzed by X-ray diffraction. In these structures, the Ln ion was bound by both oxygen atoms of each beta-phosphorylamide moiety of the ligands. The Tb3+ and Eu3+ complexes were modestly emissive as solutions in acetonitrile, with lifetime values that fell within typical ranges.
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Affiliation(s)
- Alan R. Lear
- Department of Chemistry, Grand Valley State University, 1 Campus Dr., Allendale, MI 49401, USA; (A.R.L.); (J.L.)
| | - Jonah Lenters
- Department of Chemistry, Grand Valley State University, 1 Campus Dr., Allendale, MI 49401, USA; (A.R.L.); (J.L.)
| | - Michael G. Patterson
- Department of Chemistry, Biochemistry and Physics, The University of Tampa, 401 W. Kennedy Blvd., Tampa, FL 33606, USA; (M.G.P.); (E.J.W.)
| | - Richard J. Staples
- Center for Crystallographic Research, Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, MI 48824, USA;
| | - Eric J. Werner
- Department of Chemistry, Biochemistry and Physics, The University of Tampa, 401 W. Kennedy Blvd., Tampa, FL 33606, USA; (M.G.P.); (E.J.W.)
| | - Shannon M. Biros
- Department of Chemistry, Grand Valley State University, 1 Campus Dr., Allendale, MI 49401, USA; (A.R.L.); (J.L.)
- Correspondence: ; Tel.: +1-616-331-8955
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9
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Meshkova SB, Doga PG. Increasing Sensitivity of the Luminescence Determination of Lanthanides Using Their Complexes. JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1134/s1061934820030144] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Nicholas AD, Ahern JC, Patterson HH. Energy transfer studies between mixed Au-Pd cyanide nanosystems and Tb+3 doped in different alkali halides. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2019.112136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Liu X, Chen D, Wang C, Tian N, Li Z, Zhang Y, Ding ZJ. A turn-on luminescence probe for highly selective detection of an anthrax biomarker. LUMINESCENCE 2020; 35:601-607. [PMID: 31916365 DOI: 10.1002/bio.3764] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/21/2019] [Accepted: 12/11/2019] [Indexed: 01/14/2023]
Abstract
Highly selective detection of Bacillus anthrax spores has attracted worldwide attention because Bacillus anthrax spores not only are harmful to the health of human beings and animals, but also can be used as biological warfare agents. Here, we report a simple platform by mixing EuCl3 ·6H2 O and sodium polyacrylate in aqueous solution and further investigate its luminescence response towards Bacillus anthrax biomarker dipicolinic acid (DPA) as a turn-on luminescence probe. Importantly, our probe has good sensitivity, lower detection limit, excellent selectivity as well as great anti-interference ability due to the great luminescence enhancement of Eu3+ . Moreover, a test paper is constructed to realize the purpose of portable detection. These results indicate that our probe is an excellent candidate for sensing DPA.
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Affiliation(s)
- Xiao Liu
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, Guangrong Dao 8, Hongqiao District, Tianjin, China
| | - Dong Chen
- Beijing Institute of Pharmaceutical Chemistry, Beijing, China
| | - Chenchen Wang
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, Guangrong Dao 8, Hongqiao District, Tianjin, China
| | - Nianjuan Tian
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, Guangrong Dao 8, Hongqiao District, Tianjin, China
| | - Zhiqiang Li
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, Guangrong Dao 8, Hongqiao District, Tianjin, China
| | - Ying Zhang
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, Guangrong Dao 8, Hongqiao District, Tianjin, China
| | - Zhi-Jun Ding
- Beijing Institute of Pharmaceutical Chemistry, Beijing, China
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12
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Effects of calcium ions on crystal structure and luminescence properties of six rare earth metal complexes. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2019.121053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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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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14
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Aulsebrook ML, Graham B, Grace MR, Tuck KL. Lanthanide complexes for luminescence-based sensing of low molecular weight analytes. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.11.018] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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15
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Aulsebrook ML, Biswas S, Leaver FM, Grace MR, Graham B, Barrios AM, Tuck KL. A luminogenic lanthanide-based probe for the highly selective detection of nanomolar sulfide levels in aqueous samples. Chem Commun (Camb) 2017; 53:4911-4914. [DOI: 10.1039/c7cc01764b] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A novel bimetallic terbium(iii)/copper(ii) complex for the luminescent detection of hydrogen sulfide in aqueous samples is described.
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Affiliation(s)
| | - Suvendu Biswas
- Department of Medicinal Chemistry
- University of Utah College of Pharmacy
- Salt Lake City
- USA
| | | | | | - Bim Graham
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville
- Australia
| | - Amy M. Barrios
- Department of Medicinal Chemistry
- University of Utah College of Pharmacy
- Salt Lake City
- USA
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16
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G. Leach E, Shady JR, Boyden AC, Emig AL, Henry AT, Connor EK, Staples RJ, Schaertel S, Werner EJ, Biros SM. X-ray crystallographic, luminescence and NMR studies of phenacyldiphenylphosphine oxide with the Ln(iii) ions Sm, Eu, Gd, Tb and Dy. Dalton Trans 2017; 46:15458-15469. [DOI: 10.1039/c7dt02678a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
NMR, luminescence and X-ray crystallographic studies of a series of β-ketophosphine oxide-Ln3+ complexes are described.
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Affiliation(s)
- Erin G. Leach
- Department of Chemistry
- Grand Valley State University
- Allendale
- USA
| | - Justin R. Shady
- Department of Chemistry
- Grand Valley State University
- Allendale
- USA
| | - Adam C. Boyden
- Department of Chemistry
- Grand Valley State University
- Allendale
- USA
| | - Anne-lise Emig
- Department of Chemistry
- Grand Valley State University
- Allendale
- USA
| | - Alyssa T. Henry
- Department of Chemistry
- Biochemistry and Physics
- The University of Tampa
- Tampa
- USA
| | - Emily K. Connor
- Department of Chemistry
- Biochemistry and Physics
- The University of Tampa
- Tampa
- USA
| | - Richard J. Staples
- Center for Crystallographic Research
- Department of Chemistry
- Michigan State University
- East Lansing
- USA
| | | | - Eric J. Werner
- Department of Chemistry
- Biochemistry and Physics
- The University of Tampa
- Tampa
- USA
| | - Shannon M. Biros
- Department of Chemistry
- Grand Valley State University
- Allendale
- USA
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17
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Coburn KM, Hardy DA, Patterson MG, McGraw SN, Peruzzi MT, Boucher F, Beelen B, Sartain HT, Neils T, Lawrence CL, Staples RJ, Werner EJ, Biros SM. f-Element coordination and extraction selectivity of a carbamoylmethylphosphine oxide ligand based on a tripodal phosphine oxide scaffold. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Sahoo J, Subramanian PS, Jaiswar S. Synthesis and Characterization of Ln(III) Complexes and its Luminescence Properties. J Fluoresc 2016; 26:1341-7. [DOI: 10.1007/s10895-016-1821-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 05/09/2016] [Indexed: 10/21/2022]
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19
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Janzen DE, Juchum M, Presow SR, Ronson TK, Mohr W, Clérac R, Feltham HL, Brooker S. Trigonal (-3) symmetry octahedral lanthanide(III) complexes of zwitterionic tripodal ligands: luminescence and magnetism. Supramol Chem 2016. [DOI: 10.1080/10610278.2015.1102264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Daron E. Janzen
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, Dunedin, New Zealand
- Department of Chemistry and Biochemistry, St. Catherine University, St. Paul, MN, USA
| | - Michael Juchum
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, Dunedin, New Zealand
| | - Shaun R. Presow
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, Dunedin, New Zealand
| | - Tanya K. Ronson
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, Dunedin, New Zealand
| | - Wolfgang Mohr
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, Dunedin, New Zealand
| | - Rodolphe Clérac
- CNRS, CRPP, UPR 8641, Pessac, France
- Univ. Bordeaux, CRPP, UPR 8641, Pessac, France
| | - Humphrey L.C. Feltham
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, Dunedin, New Zealand
| | - Sally Brooker
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, Dunedin, New Zealand
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20
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Tabrizi L, Chiniforoshan H. A new water-soluble heteronuclear PdII–AuI pincer complex as two-photon luminescent probe for biological Co2+ detection. RSC Adv 2016. [DOI: 10.1039/c6ra21386c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
A new water-soluble heteronuclear PdII–AuI pincer complex was synthesized and investigated for biological Co2+ detection.
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Affiliation(s)
- Leila Tabrizi
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
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21
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Mal S, Pietraszkiewicz M, Pietraszkiewicz O. Synthesis and photophysical studies of tetrazolate-based Eu(III) photoluminescent ternary complexes containing N-heterocyclic phosphine oxides auxiliary co-ligands. LUMINESCENCE 2015; 31:1085-90. [PMID: 26679054 DOI: 10.1002/bio.3075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 11/09/2015] [Accepted: 11/13/2015] [Indexed: 11/12/2022]
Abstract
Two new ternary tetrazolate Eu(III) complexes with phosphine oxide co-ligands Eu(PTO)3 ·(P1/P2) [PTO = 5-(2-pyridyl-1-oxide)tetrazole, P1 = diphenylphosphorylamino-phenylphosphoryl-benzene, P2 = diphenylphosphorylpyridine)-bis-isobutyricphosphoryl] were synthesized and characterized using UV, fluorescence, IR and (1) H NMR spectroscopic techniques. The analytical data prove that the complexes are mononuclear in nature and the central Eu(III) ion is coordinated by three N and three O atoms of tetrazolate, and two O atoms of the corresponding bidentate phosphine oxide ligands. The ancillary ligand increased the photoluminescence efficiency of Eu(PTO)3 ·P1 (complex 3) by twofold compared with our previously reported Eu(PTO)3 complex (complex 1). Copyright © 2015 John Wiley & Sons, Ltd.
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Affiliation(s)
- Suraj Mal
- Institute of Physical Chemistry, Polish Academy of Sciences, 01224, Warsaw, Kasprzaka 44/52, Poland.,Division of Material Physics, Ruder Boskovic Institute, Bijenicka cesta, 54, 10000, Zagreb, Croatia
| | - Marek Pietraszkiewicz
- Institute of Physical Chemistry, Polish Academy of Sciences, 01224, Warsaw, Kasprzaka 44/52, Poland
| | - Oksana Pietraszkiewicz
- Institute of Physical Chemistry, Polish Academy of Sciences, 01224, Warsaw, Kasprzaka 44/52, Poland
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22
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Sartain HT, McGraw SN, Lawrence CL, Werner EJ, Biros SM. A novel tripodal CMPO ligand: Affinity for f-elements, computational investigations and luminescence properties. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2014.11.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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23
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Belousov YA, Utochnikova VV, Kuznetsov SS, Andreev MN, Dolzhenko VD, Drozdov AA. New rare-earth metal acyl pyrazolonates: Synthesis, crystals structures, and luminescence properties. RUSS J COORD CHEM+ 2014. [DOI: 10.1134/s1070328414090024] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Synthesis, structure, and properties of trinuclear pivalate {Zn2Eu} complexes with N-donor ligands. Russ Chem Bull 2014. [DOI: 10.1007/s11172-013-0313-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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25
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Solodukhin NN, Utochnikova VV, Lepnev LS, Kuzmina NP. Mixed-ligand terbium hydroxyaromatic carboxylates with o-phenanthroline: luminescence quenching at 300 and 77K. MENDELEEV COMMUNICATIONS 2014. [DOI: 10.1016/j.mencom.2014.03.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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Trivedi ER, Eliseeva SV, Jankolovits J, Olmstead MM, Petoud S, Pecoraro VL. Highly emitting near-infrared lanthanide "encapsulated sandwich" metallacrown complexes with excitation shifted toward lower energy. J Am Chem Soc 2014; 136:1526-34. [PMID: 24432702 PMCID: PMC3985713 DOI: 10.1021/ja4113337] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Indexed: 12/21/2022]
Abstract
Near-infrared (NIR) luminescent lanthanide complexes hold great promise for practical applications, as their optical properties have several complementary advantages over organic fluorophores and semiconductor nanoparticles. The fundamental challenge for lanthanide luminescence is their sensitization through suitable chromophores. The use of the metallacrown (MC) motif is an innovative strategy to arrange several organic sensitizers at a well-controlled distance from a lanthanide cation. Herein we report a series of lanthanide “encapsulated sandwich” MC complexes of the form Ln3+ [12-MC(Zn(II),quinHA)-4]2[24-MC(Zn(II),quinHA)-8] (Ln3+ [Zn(II)MC(quinHA)]) in which the MC framework is formed by the self-assembly of Zn2+ ions and tetradentate chromophoric ligands based on quinaldichydroxamic acid (quinHA). A first-generation of luminescent MCs was presented previously but was limited due to excitation wavelengths in the UV. We report here that through the design of the chromophore of the MC assembly, we have significantly shifted the absorption wavelength toward lower energy (450 nm). In addition to this near-visible inter- and/or intraligand charge transfer absorption, Ln3+ [Zn(II)MC(quinHA)] exhibits remarkably high quantum yields, long luminescence lifetimes (CD3OD; Yb3+, QLn(L) = 2.88(2)%, τobs = 150.7(2) μs; Nd3+, QLn(L) = 1.35(1)%, τobs = 4.11(3) μs; Er3+, QLn(L) = 3.60(6)·10–2%, τobs = 11.40(3) μs), and excellent photostability. Quantum yields of Nd3+ and Er3+ MCs in the solid state and in deuterated solvents, upon excitation at low energy, are the highest values among NIR-emitting lanthanide complexes containing C–H bonds. The versatility of the MC strategy allows modifications in the excitation wavelength and absorptivity through the appropriate design of the ligand sensitizer, providing a highly efficient platform with tunable properties.
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Affiliation(s)
- Evan R. Trivedi
- 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, 45071 Orléans Cedex 2, France
- Le
STUDIUM® Loire Valley Institute for Advanced Studies, 1 Rue Dupanloup, 45000 Orléans, France
| | - Joseph Jankolovits
- Department
of Chemistry, Willard H. Dow Laboratories, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Marilyn M. Olmstead
- Department
of Chemistry, University of California,
Davis, One Shields Avenue, Davis, California 95616, United States
| | - Stéphane Petoud
- Centre
de Biophysique Moléculaire, CNRS, UPR 4301, 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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27
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Cable ML, Kirby JP, Gray HB, Ponce A. Enhancement of anion binding in lanthanide optical sensors. Acc Chem Res 2013; 46:2576-84. [PMID: 24032446 DOI: 10.1021/ar400050t] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In the design of molecular sensors, researchers exploit binding interactions that are usually defined in terms of topology and charge complementarity. The formation of complementary arrays of highly cooperative, noncovalent bonding networks facilitates protein-ligand binding, leading to motifs such as the "lock-and-key". Synthetic molecular sensors often employ metal complexes as key design elements as a way to construct a binding site with the desired shape and charge to achieve target selectivity. In transition metal complexes, coordination number, structure and ligand dynamics are governed primarily by a combination of inner-sphere covalent and outer-sphere noncovalent interactions. These interactions provide a rich variable space that researchers can use to tune structure, stability, and dynamics. In contrast, lanthanide(III)-ligand complex formation and ligand-exchange dynamics are dominated by reversible electrostatic and steric interactions, because the unfilled f shell is shielded by the larger, filled d shell. Luminescent lanthanides such as terbium, europium, dysprosium, and samarium display many photophysical properties that make them excellent candidates for molecular sensor applications. Complexes of lanthanide ions act as receptors that exhibit a detectable change in metal-based luminescence upon binding of an anion. In our work on sensors for detection of dipicolinate, the unique biomarker of bacterial spores, we discovered that the incorporation of an ancillary ligand (AL) can enhance binding constants of target anions to lanthanide ions by as much as two orders of magnitude. In this Account, we show that selected ALs in lanthanide/anion systems greatly improve sensor performance for medical, planetary science, and biodefense applications. We suggest that the observed anion binding enhancement could result from an AL-induced increase in positive charge at the lanthanide ion binding site. This effect depends on lanthanide polarizability, which can be established from the ionization energy of Ln(3+) → Ln(4+). These results account for the order Tb(3+) > Dy(3+) > Eu(3+) ≈ Sm(3+). As with many lanthanide properties, ranging from hydration enthalpy to vaporization energy, this AL-induced enhancement shows a large discrepancy between Tb(3+) and Eu(3+) despite their similarity in size, a phenomenon known as the "gadolinium break". This discrepancy, based on the unusual stabilities of the Eu(2+) and Tb(4+) oxidation states, results from the half-shell effect, as both of these ions have half-filled 4f-shells. The high polarizability of Tb(3+) explains the extraordinarily large increase in the binding affinity of anions for terbium compared to other lanthanides. We recommend that researchers consider this AL-induced enhancement when designing lanthanide-macrocycle optical sensors. Ancillary ligands also can reduce the impact of interfering species such as phosphate commonly found in environmental and physiological samples.
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Affiliation(s)
- Morgan L. Cable
- Jet Propulsion Laboratory, Pasadena, California 91109, United States
| | | | - Harry B. Gray
- Beckman Institute, California Institute of Technology, Pasadena, California 91125, United States
| | - Adrian Ponce
- Jet Propulsion Laboratory, Pasadena, California 91109, United States
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28
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Dutra JDL, Filho MAM, Rocha GB, Freire RO, Simas AM, Stewart JJP. Sparkle/PM7 Lanthanide Parameters for the Modeling of Complexes and Materials. J Chem Theory Comput 2013; 9:3333-3341. [PMID: 24163641 DOI: 10.1021/ct301012h] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The recently published Parametric Method number 7, PM7, is the first semiempirical method to be successfully tested by modeling crystal structures and heats of formation of solids. PM7 is thus also capable of producing results of useful accuracy for materials science, and constitutes a great improvement over its predecessor, PM6. In this article, we present Sparkle Model parameters to be used with PM7 that allow the prediction of geometries of metal complexes and materials which contain lanthanide trications. Accordingly, we considered the geometries of 224 high-quality crystallographic structures of complexes for the parameterization set and 395 more for the validation of the parameterization for the whole lanthanide series, from La(III) to Lu(III). The average unsigned error for Sparkle/PM7 for the distances between the metal ion and its coordinating atoms is 0.063Å for all lanthanides, ranging from a minimum of 0.052Å for Tb(III) to 0.088Å for Ce(III), comparable to the equivalent errors in the distances predicted by PM7 for other metals. These distance deviations follow a gamma distribution within a 95% level of confidence, signifying that they appear to be random around a mean, confirming that Sparkle/PM7 is a well-tempered method. We conclude by carrying out a Sparkle/PM7 full geometry optimization of two spatial groups of the same thulium-containing metal organic framework, with unit cells accommodating 376 atoms, of which 16 are Tm(III) cations; the optimized geometries were in good agreement with the crystallographic ones. These results emphasize the capability of the use of the Sparkle Model for the prediction of geometries of compounds containing lanthanide trications within the PM7 semiempirical model, as well as the usefulness of such semiempirical calculations for materials modeling. Sparkle/PM7 is available in the software package MOPAC2012, at no cost for academics and can be obtained from http://openmopac.net.
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Affiliation(s)
- José Diogo L Dutra
- Departamento de Química, Universidade Federal de Sergipe, 49.100-000 - São Cristóvão, SE, Brazil
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29
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Plyusnin VF, Kupryakov AS, Grivin VP, Shelton AH, Sazanovich IV, Meijer AJHM, Weinstein JA, Ward MD. Photophysics of 1,8-naphthalimide/Ln(iii) dyads (Ln = Eu, Gd): naphthalimide → Eu(iii) energy-transfer from both singlet and triplet states. Photochem Photobiol Sci 2013; 12:1666-79. [DOI: 10.1039/c3pp50109d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Feng W, Zhang Y, Zhang Z, Lü X, Liu H, Shi G, Zou D, Song J, Fan D, Wong WK, Jones RA. Anion-Induced Self-Assembly of Luminescent and Magnetic Homoleptic Cyclic Tetranuclear Ln4(Salen)4 and Ln4(Salen)2 Complexes (Ln = Nd, Yb, Er, or Gd). Inorg Chem 2012; 51:11377-86. [DOI: 10.1021/ic300918c] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Weixu Feng
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
| | - Yao Zhang
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
| | - Zhao Zhang
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
| | - Xingqiang Lü
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
- Fujian Institute
of Research
on the Structure of Matter, Chinese Academy of Science, Fuzhou 350002, Fujian, China
| | - Han Liu
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
| | - Guoxiang Shi
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
| | - Dan Zou
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
| | - Jirong Song
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
| | - Daidi Fan
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
| | - Wai-Kwok Wong
- Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon
Tong, Hong Kong, China
| | - Richard A. Jones
- Department of Chemistry and
Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, Texas 78712-0165, United States
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31
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Zeng CH, Yang YY, Zhu YM, Wang HM, Chu TS, Ng SW. A New Luminescent Terbium 4-methylsalicylate Complex as a Novel Sensor for Detecting the Purity of Methanol. Photochem Photobiol 2012; 88:860-6. [DOI: 10.1111/j.1751-1097.2012.01123.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Sainz-Gonzalo FJ, Casimiro M, Popovici C, Rodríguez-Diéguez A, Fernández-Sánchez JF, Fernández I, López-Ortiz F, Fernández-Gutiérrez A. Development of polymeric sensing films based on a tridentate bis(phosphinic amide)-phosphine oxide for detecting europium(iii) in water. Dalton Trans 2012; 41:6735-48. [DOI: 10.1039/c2dt30257h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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