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Zhang ML, Cao XQ, Cao C, Zheng TF, Xie X, Wen HR, Liu SJ. Highly stable Tb(III) metal-organic framework derived from a new benzothiadiazole functionalized ligand for fluorescence recognition of ascorbic acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 323:124898. [PMID: 39116597 DOI: 10.1016/j.saa.2024.124898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Revised: 07/25/2024] [Accepted: 07/27/2024] [Indexed: 08/10/2024]
Abstract
Because ascorbic acid (AA) is one of the basic elements to maintain the normal physiological functions of human body, it is urgent to develop a material that can achieve efficient, rapid and in-situ detection for AA. A new fluorescence organic compound 4',4'''-(benzo[c][1,2,5]thiadiazole-4,7-diyl)bis([1,1'-biphenyl]-4-carboxylic acid) (H2BTBC) based on benzothiadiazole group has been synthesized, which can detect Fe3+ ions by fluorescence turn-off effect with a detection limit of 0.015 μM, as well as recognize linear amines by fluorescence turn-on effect. Moreover, a highly stable Tb(III) metal-organic framework has been solvothermally prepared with H2BTBC, namely {[(CH3)2NH2]2[Tb2(BTBC)4]∙solvents}n (JXUST-39), which can selectively detect AA among biological fluids by fluorescence enhancement effect with a detection limit of 0.077 μM. In addition, the mechanism for JXUST-39 detecting AA is possibly the cooperative effect of absorbance-caused enhancement and charge transfer between JXUST-39 and AA. Moreover, LED lamp beads, fluorescent films and fluorescent detection test paper based on JXUST-39 were prepared to achieve portable detection via fluorescence enhancement effect.
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Affiliation(s)
- Man-Lian Zhang
- School of Chemistry and Chemical Engineering, Jiangxi Province Key Laboratory of Functional Crystalline Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, PR China
| | - Xiao-Qin Cao
- School of Chemistry and Chemical Engineering, Jiangxi Province Key Laboratory of Functional Crystalline Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, PR China
| | - Chen Cao
- School of Chemistry and Chemical Engineering, Jiangxi Province Key Laboratory of Functional Crystalline Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, PR China.
| | - Teng-Fei Zheng
- School of Chemistry and Chemical Engineering, Jiangxi Province Key Laboratory of Functional Crystalline Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, PR China
| | - Xin Xie
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou 341000, Jiangxi Province, PR China.
| | - He-Rui Wen
- School of Chemistry and Chemical Engineering, Jiangxi Province Key Laboratory of Functional Crystalline Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, PR China
| | - Sui-Jun Liu
- School of Chemistry and Chemical Engineering, Jiangxi Province Key Laboratory of Functional Crystalline Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, PR China.
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Tubau À, Zinna F, Di Bari L, Font-Bardía M, Vicente R. Dinuclear enantiopure Ln 3+ complexes with ( S-) and ( R-) 2-phenylbutyrate ligands. Luminescence, CPL and magnetic properties. Dalton Trans 2024. [PMID: 39078094 DOI: 10.1039/d4dt01295j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/31/2024]
Abstract
The reaction of Ln(NO3)2·6H2O (Ln = Nd, Sm, Eu, Tb, Dy, Tm and Yb) with the respective enantiopure (R)-(-)-2-phenylbutyric or (S)-(+)-2-phenylbutyric acid (R/S-2-HPhBut) and 4,7-diphenyl-1,10-phenanthroline (Bphen) allows the isolation of chiral dinuclear compounds of the formula [Ln2(μ-R/S-2-PhBut)4(R/S-2PhBut)2(Bphen)2] where Ln = Nd3+ (R/S-Nd-a), Sm3+ (R/S-Sm-a), Eu3+ (R/S-Eu-a), Tb3+ (R/S-Tb-a and R/S-Tb-b), Dy3+ (R/S-Dy-a and R/S-Dy-b), Tm3+ (R/S-Tm-b) and Yb3+ (R/S-Yb-b). Single crystal X-ray diffraction was performed for compounds S-Eu-a and S-Tm-b. Powder crystal X-ray diffraction was performed for all complexes. From the crystallographic data two different structural motifs were found which are referred to as structure type a and structure type b. In structure type a, the Ln3+ atoms are bridged through four R or S-2-PhBut ligands with two different kinds of coordination modes whereas in structure type b the two Ln3+ atoms are bridged through four R or S-2-PhBut ligands showing only one kind of coordination mode. For those lanthanide ions exhibiting both structure types, Tb3+ and Dy3+, a difference in the luminescence and magnetism behavior is observed. All compounds (except R/S-Tm-b) exhibit sensitized luminescence, notably the Eu3+ and Tb3+ analogues. Circular Dichroism (CD) and Circular Polarized Luminescence (CPL) in the solid state and in 1 mM dichloromethane (DCM) solutions are reported, leading to improved chiroptical properties for the DCM solutions. The asymmetry factor (glum) in 1 mM DCM is ±0.02 (+ for R-Eu-a) for the magnetically allowed transition 5D0 → 7F1 and ±0.03 (+ for R-Tb-a and R-Tb-b) for the 5D4 → 7F5 transition. Magnetic properties of all compounds were studied and the Dy3+ compound with the structural motif b (R-Dy-b) shows Single Molecular Magnet (SMM) behavior under a 0 T magnetic field. However, R-Dy-a is a field-induced SMM.
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Affiliation(s)
- Ànnia Tubau
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Moruzzi 13, I 56124 Pisa, Italy.
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Moruzzi 13, I 56124 Pisa, Italy.
| | - Mercè Font-Bardía
- Departament de Mineralogia, Cristal·lografia i Dipòsits Minerals and Unitat de Difracció de Raigs X, Centres Científics i Tecnològics de la Universitat de Barcelona (CCiTUB), Universitat de Barcelona, Solé i Sabarís 1-3, 08028 Barcelona, Spain
| | - Ramon Vicente
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
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Li D, Yadav A, Zhou H, Roy K, Thanasekaran P, Lee C. Advances and Applications of Metal-Organic Frameworks (MOFs) in Emerging Technologies: A Comprehensive Review. GLOBAL CHALLENGES (HOBOKEN, NJ) 2024; 8:2300244. [PMID: 38356684 PMCID: PMC10862192 DOI: 10.1002/gch2.202300244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 08/19/2023] [Indexed: 02/16/2024]
Abstract
Metal-organic frameworks (MOFs) that are the wonder material of the 21st century consist of metal ions/clusters coordinated to organic ligands to form one- or more-dimensional porous structures with unprecedented chemical and structural tunability, exceptional thermal stability, ultrahigh porosity, and a large surface area, making them an ideal candidate for numerous potential applications. In this work, the recent progress in the design and synthetic approaches of MOFs and explore their potential applications in the fields of gas storage and separation, catalysis, magnetism, drug delivery, chemical/biosensing, supercapacitors, rechargeable batteries and self-powered wearable sensors based on piezoelectric and triboelectric nanogenerators are summarized. Lastly, this work identifies present challenges and outlines future opportunities in this field, which can provide valuable references.
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Affiliation(s)
- Dongxiao Li
- Department of Electrical and Computer EngineeringNational University of SingaporeSingapore117583Singapore
- Center for Intelligent Sensors and MEMSNational University of SingaporeSingapore117608Singapore
| | - Anurag Yadav
- Department of ChemistryPondicherry UniversityPuducherry605014India
| | - Hong Zhou
- Department of Electrical and Computer EngineeringNational University of SingaporeSingapore117583Singapore
- Center for Intelligent Sensors and MEMSNational University of SingaporeSingapore117608Singapore
| | - Kaustav Roy
- Department of Electrical and Computer EngineeringNational University of SingaporeSingapore117583Singapore
- Center for Intelligent Sensors and MEMSNational University of SingaporeSingapore117608Singapore
| | | | - Chengkuo Lee
- Department of Electrical and Computer EngineeringNational University of SingaporeSingapore117583Singapore
- Center for Intelligent Sensors and MEMSNational University of SingaporeSingapore117608Singapore
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Qiao Y, Sun C, Jian J, Zhou T, Xue X, Shi J, Zhao L, Liao G. Multifunctional Luminescent 3D Ln-MOFs with High Sensitivity for Trace Detection of Micronutrients. Inorg Chem 2024; 63:2060-2071. [PMID: 38232754 DOI: 10.1021/acs.inorgchem.3c03838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
The synthesis of two versatile fluorescent metal-organic frameworks (MOFs), [Eu(4-NCP)(1,4-bdc)]n·0.5H2O (1) and [Eu(4-NCP)(4,4'-bpdc)]n·0.75H2O (2) (HNCP = 2-(4-carboxyphenyl)imidazo(4,5-f)-(1,10)phenanthroline, 1,4-H2bdc = benzene-1,4-dicarboxylic acid, 4,4'-H2bpdc = 4,4'-biphenyldicarboxylic acid), was carried out using a hydrothermal method. These MOFs were characterized through various advanced technologies to determine their structural information. The results indicate that both MOFs exhibited 3D network structures with specific topologies. Furthermore, these MOFs demonstrated exceptional thermal stabilities and adsorption capabilities. Additionally, complex 2 was utilized for studying the fluorescence sensing properties of various micronutrients including metal ions, nitro aromatic compounds, and biological small molecules. Notably, complex 2 showed promising potential as a multifunctional sensor for selectively detecting Fe3+, nitrobenzene, and ascorbic acid in aqueous solutions through fluorescence quenching with low limits of detection (LODs ∼ 10-7 M) and high quenching constants (Ksv ∼ 103 M-1). Moreover, the detection mechanism of complex 2 was further investigated by using experimental methods and DFT calculations.
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Affiliation(s)
- Yu Qiao
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Jilin Normal University, Siping 136000, China
| | - Chang Sun
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Jilin Normal University, Siping 136000, China
| | - Juan Jian
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Jilin Normal University, Siping 136000, China
| | - Tianyu Zhou
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Jilin Normal University, Siping 136000, China
| | - Xiangxin Xue
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Jilin Normal University, Siping 136000, China
| | - Jinghui Shi
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Jilin Normal University, Siping 136000, China
| | - Lina Zhao
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Jilin Normal University, Siping 136000, China
| | - Guangfu Liao
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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5
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Hu JJ, Xie KL, Xiong TZ, Wang MM, Wen HR, Peng Y, Liu SJ. Stable Europium(III) Metal-Organic Framework Demonstrating High Proton Conductivity and Fluorescence Detection of Tetracyclines. Inorg Chem 2023. [PMID: 37452746 DOI: 10.1021/acs.inorgchem.3c01468] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
A europium(III) metal-organic framework (MOF), namely, {[[(CH3)2NH2]3Eu2(DTTP-2OH)2(HCOO)(H2O)]·4H2O}n (Eu-MOF, H4DTTP-2OH = 2',5'-dihydroxy-[1,1':4',1″-terphenyl]-3,3″,5,5″-tetracarboxylic acid) has been assembled through solvothermal method. The Eu-MOF is a three-dimensional (3D) (4,4,8)-connected topological framework with binuclear Eu(III) clusters as secondary building units, in which a richly ordered hydrogen bonding network formed among the free H2O molecules, dimethylamine cations, and phenolic hydroxyl groups provides a potential pathway for proton conduction. The proton conductivity reaches the category of superionic conductors (σ > 10-4 S cm-1) at room temperature with a maximum conductivity of 1.91 × 10-3 S cm-1 at 60 °C and 98% RH. Moreover, it also can be used as a fluorescence sensor in aqueous solution with detection limits of 0.14 μM for tetracycline, 0.13 μM for oxytetracycline and 0.11 μM for doxycycline. These results pave new methods for constructing MOFs with high proton conductivity and responsive fluorescence.
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Affiliation(s)
- Jun-Jie Hu
- School of Chemistry and Chemical Engineering, Jiangxi Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China
| | - Kang-Le Xie
- School of Chemistry and Chemical Engineering, Jiangxi Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China
| | - Tian-Zheng Xiong
- School of Chemistry and Chemical Engineering, Jiangxi Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China
| | - Miao-Miao Wang
- School of Chemistry and Chemical Engineering, Jiangxi Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China
| | - He-Rui Wen
- School of Chemistry and Chemical Engineering, Jiangxi Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China
| | - Yan Peng
- School of Chemistry and Chemical Engineering, Jiangxi Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China
| | - Sui-Jun Liu
- School of Chemistry and Chemical Engineering, Jiangxi Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China
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Chen Y, Yin X, Chen ZK, Wang PM, Li B. Tunable White Light Emission of a Metal-Organic Framework Based on a Bisquinoxaline Derivative by Introducing Red-Green Cationic Dyes. Inorg Chem 2023. [PMID: 37379019 DOI: 10.1021/acs.inorgchem.3c00905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
The unique structural advantages give metal-organic frameworks (MOFs) a special use as host substrates to encapsulate organic dyes, which would result in specific host-guest composites for white-light phosphors. In this work, an anionic MOF exhibiting blue emission was constructed using bisquinoxaline derivatives as photoactive centers, which could effectively encapsulate rhodamine B (Rh B) and acriflavine (AF) to form an In-MOF ⊃ Rh B/AF composite. By simply adjusting the amount of Rh B and AF, the emitting color of the resulting composite could be easily adjusted. The formed In-MOF ⊃ Rh B/AF composite exhibits broadband white light emission with ideal Commission International ed'Eclairage (CIE) coordinates of (0.34, 0.35), a color rendering index of 80.8, and a moderately correlated color temperature value of 5193.96 K. This strategy can be easily extended to other blue-emitting MOFs and dyes, thus opening up new prospects for the development of white-light-emitting materials.
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Affiliation(s)
- Yuan Chen
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Semiconductor Chemistry Center, School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, Huazhong University of Science and Technology, Wuhan 430074, Hubei, People's Republic of China
| | - Xue Yin
- Hubei Changjiang New Material Research and Design Institute Co., Ltd., Wuhan 430073, Hubei, People's Republic of China
| | - Zi-Ke Chen
- Hubei Changjiang New Material Research and Design Institute Co., Ltd., Wuhan 430073, Hubei, People's Republic of China
| | - Peng-Min Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Semiconductor Chemistry Center, School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, Huazhong University of Science and Technology, Wuhan 430074, Hubei, People's Republic of China
| | - Bao Li
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Semiconductor Chemistry Center, School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, Huazhong University of Science and Technology, Wuhan 430074, Hubei, People's Republic of China
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, People's Republic of China
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7
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Liu S, Liu W, Sun Y, Liu W. Construction of High Quantum Yield Lanthanide Luminescent MOF Platform by In Situ Doping and Its Temperature Sensing Performance. Inorg Chem 2023. [PMID: 37307418 DOI: 10.1021/acs.inorgchem.3c00498] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Lanthanide luminescent MOF materials show excellent luminescent properties. However, obtaining lanthanide luminescent MOFs with high quantum yield is a challenging research. A novel bismuth-based metal-organic framework [Bi(SIP)(DMF)2] was constructed by solvothermal method, utilizing 5-sulfoisophthalic acid monosodium salt (NaH2SIP) and Bi(NO3)3·5H2O. Thereafter, doped MOFs (Ln-Bi-SIP, Ln = Eu, Tb, Sm, Dy, Yb, Nd, Er) with different luminescent properties have been obtained by in situ doping with different lanthanide metal ions, among which Eu-Bi-SIP, Tb-Bi-SIP, Sm-Bi-SIP, and Dy-Bi-SIP have high quantum yield. What is special is that the doping amount of Ln3+ ions is very low, and the doped MOF can achieve high luminescence quantum yields. EuTb-Bi-SIP obtained by Eu3+/Tb3+ codoping and Dy-Bi-SIP exhibit good temperature sensing performance over a wide temperature range with the maximum sensitivity Sr of 1.6%·K-1 (433 K) and 2.6%·K-1, respectively (133 K), while the cycling experiments also show good repeatability in the assay temperature range. Finally, considering the practical application value, EuTb-Bi-SIP was blended with an organic polymer poly(methyl methacrylate) (PMMA) to produce a thin film, which shows different color changes at different temperatures.
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Affiliation(s)
- Shiying Liu
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, 730000 Lanzhou, China
| | - Wei Liu
- Institute of National Nuclear Industry, Frontiers Science Center for Rare Isotope, School of Nuclear Science and Technology, Key Laboratory of Special Function Materials and Structure Design, Ministry of Education, Lanzhou University, 730000 Lanzhou, China
| | - Yiliang Sun
- Institute of National Nuclear Industry, Frontiers Science Center for Rare Isotope, School of Nuclear Science and Technology, Key Laboratory of Special Function Materials and Structure Design, Ministry of Education, Lanzhou University, 730000 Lanzhou, China
| | - Weisheng Liu
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, 730000 Lanzhou, China
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Shen Y, Pan X, Zhao Y, Gu Q, Li Q. Highly thermostable mixed lanthanide organic frameworks with high quantum yield for warm white light-emitting diodes. Front Chem 2023; 11:1204646. [PMID: 37284579 PMCID: PMC10239934 DOI: 10.3389/fchem.2023.1204646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 05/04/2023] [Indexed: 06/08/2023] Open
Abstract
A mixed lanthanide organic framework was prepared via hydrothermal methods using m-phthalic acid (m-H2BDC), 1,10-phenanthroline (1,10-Phen), and Ln3+ ions, formulated as [HNMe2][Eu0.095Tb1.905(m-BDC)3(phen)2] (ZTU-6). The structure and stability of ZTU-6 were characterised by X-ray diffraction (XRD) and thermogravimetric analysis (TGA), which revealed a three-dimensional pcu topology with high thermal stability. Fluorescence tests showed that ZTU-6 emitted orange light with a high quantum yield of 79.15%, and it can be effectively encapsulated in a light-emitting diode (LED) device emitting orange light. In addition, ZTU-6 was found to be compatible with BaMgAl10O17:Eu2+ (BAM) blue powder and [(Sr,Ba)2SiO4:Eu2+] silicate yellow and green powder to create a warm white LED with a high colour rendering index (CRI) of 93.4, a correlated colour temperature (CCT) of 3908 K, and CIE coordinates of (0.38, 036).
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Affiliation(s)
- Yanqiong Shen
- College of Chemistry and Chemical Engineering, Zhaotong University, Zhaotong, China
| | - Xianyong Pan
- College of Chemistry and Chemical Engineering, Zhaotong University, Zhaotong, China
| | - Yaru Zhao
- College of Chemistry and Chemical Engineering, Zhaotong University, Zhaotong, China
| | - Qingchuan Gu
- School of Physics and Information Engineering, Zhaotong University, Zhaotong, China
| | - Qipeng Li
- College of Chemistry and Chemical Engineering, Zhaotong University, Zhaotong, China
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Xue J, Wang Y, Yang G, Wang Y. Energy transfer, anticounterfeiting, white light emission and sensing in fine-regulating series of lanthanide metal-organic frameworks. J RARE EARTH 2023. [DOI: 10.1016/j.jre.2023.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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Tubau À, Zinna F, Di Bari L, Font-Bardía M, Vicente R. Luminescence, CPL and magnetic properties of 1D enantiopure Ln 3+ complexes with ( S-) and ( R-) α-methoxyphenylacetate ligand. Dalton Trans 2023; 52:1122-1132. [PMID: 36606358 DOI: 10.1039/d2dt03356a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The reaction of Ln(NO3)2·6H2O (Ln = Eu, Tb, Dy and Sm) with (R)-(-)-α-methoxyphenylacetic acid (R-HMPA) and 1,10-phenanthroline (phen) in EtOH/H2O allows the isolation of 1D chiral compounds of formula [Ln(μ-R-MPA)(R-MPA)2(phen)]n in which Ln = Eu (R-Eu), Tb (R-Tb), Dy (R-Dy) and Sm (R-Sm). The same synthesis by using (S)-(+)-α-methoxyphenylacetic acid (S-HMPA) instead of (R)-(-)-α-methoxyphenylacetic acid allows the isolation of the enantiomeric compounds with formula [Ln(μ-S-MPA)(S-MPA)2(phen)]n where Ln = Eu (S-Eu), Tb (S-Tb), Dy (S-Dy) and Sm (S-Sm). Single crystal X-Ray diffraction measurements were performed for compounds R/S-Eu, R/S-Tb, S-Dy and S-Sm. The luminescence and the circular dichroism measured in the solid state are reported. All compounds show sensitized luminescence, notably the Eu3+ and Tb3+ ones, whose emission color can be perceived by the naked eye. For the Eu3+ and Tb3+ derivatives the quantum yield and the circular polarized luminescence have been measured. For the magnetic allowed transition 5D0 → 7F1 of the Eu3+ compound, the anisotropy factor glum is ±0.013 (+for S-Eu). Also, magnetic properties of all compounds were studied with the Dy3+ analogue showing slow relaxation of the magnetization under a direct current magnetic field of 1000 Oe.
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Affiliation(s)
- Ànnia Tubau
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Moruzzi 13, I 56124 Pisa, Italy.
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Moruzzi 13, I 56124 Pisa, Italy.
| | - Mercè Font-Bardía
- Departament de Mineralogia, Cristal lografia i Dipòsits Minerals and Unitat de Difracció de Raigs X. Centres Científics i Tecnològics de la Universitat de Barcelona (CCiTUB). Universitat de Barcelona, Solé i Sabarís 1-3, 08028 Barcelona, Spain
| | - Ramon Vicente
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
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