1
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Iijima J, Naruke H, Suzuki RX. Structural and Chemical Effects of the Surrounding Cations and Coexisting Compounds on [M(α-PW 11O 39) 2] n. ACS OMEGA 2023; 8:9673-9683. [PMID: 36936328 PMCID: PMC10018686 DOI: 10.1021/acsomega.3c00711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
The effects of countercations and coexisting compounds on the molecular structure of the [M(α-PW11O39)2] n- polyanion were analyzed in terms of the repulsion and twisting of two [α-PW11O39]7- units. More specifically, it was found that two [α-PW11O39]7- ions approached one another upon reducing the ionic radius of M in [M(α-PW11O39)2] n-. The interactive twisting of the [α-PW11O39]7- units prevented mutual repulsion of the units containing terminal O atoms, and the tendency for approach and twisting of the [α-PW11O39]7- units varied as a function of the type of countercation and the presence of coexisting compounds. Overall, this study demonstrated that some interactions between the counteraction and coexisting compounds with [M(α-PW11O39)2] n- determined the molecular conformation and the isolated form of the polyanion.
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Affiliation(s)
- Jun Iijima
- Department
of Engineering, Tokyo University of Agriculture
and Technology, 2-24-16, Naka-cho, Koganei city, Tokyo 184-8588, Japan
| | - Haruo Naruke
- University
Research Administrator (URA), Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Ryuta X. Suzuki
- Department
of Engineering, Tokyo University of Agriculture
and Technology, 2-24-16, Naka-cho, Koganei city, Tokyo 184-8588, Japan
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2
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Colla CA, Colliard I, Sawvel AM, Nyman M, Mason HE, Deblonde GJP. Contrasting Trivalent Lanthanide and Actinide Complexation by Polyoxometalates via Solution-State NMR. Inorg Chem 2022; 62:6242-6254. [PMID: 36580490 DOI: 10.1021/acs.inorgchem.2c04014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Deciphering the solution chemistry and speciation of actinides is inherently difficult due to radioactivity, rarity, and cost constraints, especially for transplutonium elements. In this context, the development of new chelating platforms for actinides and associated spectroscopic techniques is particularly important. In this study, we investigate a relatively overlooked class of chelators for actinide binding, namely, polyoxometalates (POMs). We provide the first NMR measurements on americium-POM and curium-POM complexes, using one-dimensional (1D) 31P NMR, variable-temperature NMR, and spin-lattice relaxation time (T1) experiments. The proposed POM-NMR approach allows for the study of trivalent f-elements even when only microgram amounts are available and in phosphate-containing solutions where f-elements are typically insoluble. The solution-state speciation of trivalent americium, curium, plus multiple lanthanide ions (La3+, Nd3+, Sm3+, Eu3+, Yb3+, and Lu3+), in the presence of the model POM ligand PW11O397- was elucidated and revealed the concurrent formation of two stable complexes, [MIII(PW11O39)(H2O)x]4- and [MIII(PW11O39)2]11-. Interconversion reaction constants, reaction enthalpies, and reaction entropies were derived from the NMR data. The NMR results also provide experimental evidence of the weakly paramagnetic nature of the Am3+ and Cm3+ ions in solution. Furthermore, the study reveals a previously unnoticed periodicity break along the f-element series with the reversal of T1 relaxation times of the 1:1 and 1:2 complexes and the preferential formation of the long T1 species for the early lanthanides versus the short T1 species for the late lanthanides, americium, and curium. Given the broad variety of POM ligands that exist, with many of them containing NMR-active nuclei, the combined POM-NMR approach reported here opens a new avenue to investigate difficult-to-study elements such as heavy actinides and other radionuclides.
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Affiliation(s)
- Christopher A Colla
- Atmospheric, Earth and Energy Division, Lawrence Livermore National Laboratory, Livermore, California94550, United States
| | - Ian Colliard
- Glenn T. Seaborg Institute, Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, California94550, United States.,Department of Chemistry, Oregon State University, Corvallis, Oregon97331, United States
| | - April M Sawvel
- Materials Science Division, Lawrence Livermore National Laboratory, Livermore, California94550, United States
| | - May Nyman
- Department of Chemistry, Oregon State University, Corvallis, Oregon97331, United States
| | - Harris E Mason
- Atmospheric, Earth and Energy Division, Lawrence Livermore National Laboratory, Livermore, California94550, United States.,Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico87545, United States
| | - Gauthier J-P Deblonde
- Glenn T. Seaborg Institute, Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, California94550, United States.,Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, California94550, United States
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3
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Lin S, Ning P, Wen J, Zhang Y. Polymerization and Transformation of Tungsten(VI) Species in Acidic Aqueous Solution by Electrospray Ionization Time-of-Flight Mass Spectrometry. J SOLUTION CHEM 2020. [DOI: 10.1007/s10953-020-01001-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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4
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Moscardini A, Di Pietro S, Signore G, Parlanti P, Santi M, Gemmi M, Cappello V. Uranium-free X solution: a new generation contrast agent for biological samples ultrastructure. Sci Rep 2020; 10:11540. [PMID: 32665608 PMCID: PMC7360580 DOI: 10.1038/s41598-020-68405-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 06/19/2020] [Indexed: 11/15/2022] Open
Abstract
Biological samples are mainly composed of elements with a low atomic number which show a relatively low electron scattering power. For Transmission Electron Microscopy analysis, biological samples are generally embedded in resins, which allow thin sectioning of the specimen. Embedding resins are also composed by light atoms, thus the contrast difference between the biological sample and the surrounding resin is minimal. Due to that reason in the last decades, several staining solutions and approaches, performed with heavy metal salts, have been developed with the purpose of enhancing both the intrinsic sample contrast and the differences between the sample and resin. The best staining was achieved with the uranyl acetate (UA) solution, which has been the election method for the study of morphology in biological samples. More recently several alternatives for UA have been proposed to get rid of its radiogenic issues, but to date none of these solutions has achieved efficiencies comparable to UA. In this work, we propose a different staining solution (X Solution or X SOL), characterized by lanthanide polyoxometalates (LnPOMs) as heavy atoms source, which could be used alternatively to UA in negative staining (NS), in en bloc staining, and post sectioning staining (PSS) of biological samples. Furthermore, we show an extensive chemical characterization of the LnPOM species present in the solution and the detailed work for its final formulation, which brought remarkable results, and even better performances than UA.
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Affiliation(s)
- Aldo Moscardini
- NEST, Scuola Normale Superiore, Piazza San Silvestro 12, 56127, Pisa, Italy
| | - Sebastiano Di Pietro
- Dipartimento di Farmacia Università degli Studi di Pisa, Via Bonanno Pisano 6, 56126, Pisa, Italy
| | - Giovanni Signore
- Fondazione Pisana per la Scienza, Via F.Giovannini 13, 56017, San Giuliano Terme, PI, Italy.
| | - Paola Parlanti
- Child Health Institute of New Jersey and Department of Neuroscience and Cell Biology, Rutgers Robert Wood Johnson Medical School, 89 French Street, New Brunswick, NJ, 08901, USA
| | - Melissa Santi
- Istituto Italiano di Tecnologia, Center for Nanotechnology Innovation @NEST, Piazza San Silvestro 12, 56127, Pisa, Italy
| | - Mauro Gemmi
- Istituto Italiano di Tecnologia, Center for Nanotechnology Innovation @NEST, Piazza San Silvestro 12, 56127, Pisa, Italy
| | - Valentina Cappello
- Istituto Italiano di Tecnologia, Center for Nanotechnology Innovation @NEST, Piazza San Silvestro 12, 56127, Pisa, Italy.
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5
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Liang Z, Wu H, Singh V, Qiao Y, Li M, Ma P, Niu J, Wang J. Assembly of Lanthanide-Containing Polyoxotantalate Clusters with Efficient Photoluminescence Properties. Inorg Chem 2019; 58:13030-13036. [DOI: 10.1021/acs.inorgchem.9b01952] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhijie Liang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, People’s Republic of China
| | - Hechen Wu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, People’s Republic of China
| | - Vikram Singh
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, People’s Republic of China
| | - Yuanyuan Qiao
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, People’s Republic of China
| | - Miaomiao Li
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, People’s Republic of China
| | - Pengtao Ma
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, People’s Republic of China
| | - Jingyang Niu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, People’s Republic of China
| | - Jingping Wang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, People’s Republic of China
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6
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Khan SU, Liu BL, Akhtar M, Du J, Peng J, Zhao X, Xi WG, Zang HY, Li YG. Proton conductive watery channels constructed by in situ generated 3D lanthanide connected monolacunary polyoxometalate. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2018.09.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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7
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Yang P, Alsufyani M, Emwas A, Chen C, Khashab NM. Lewis Acid Guests in a {P
8
W
48
} Archetypal Polyoxotungstate Host: Enhanced Proton Conductivity via Metal‐Oxo Cluster within Cluster Assemblies. Angew Chem Int Ed Engl 2018; 57:13046-13051. [DOI: 10.1002/anie.201806086] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Peng Yang
- Smart Hybrid Materials Laboratory (SHMs)Advanced Membranes and Porous Materials CenterKing Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Maryam Alsufyani
- Smart Hybrid Materials Laboratory (SHMs)Advanced Membranes and Porous Materials CenterKing Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Abdul‐Hamid Emwas
- Core LabsKing Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Chaoqin Chen
- Clean Combustion Research CenterKing Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Niveen M. Khashab
- Smart Hybrid Materials Laboratory (SHMs)Advanced Membranes and Porous Materials CenterKing Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
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8
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Yang P, Alsufyani M, Emwas A, Chen C, Khashab NM. Lewis Acid Guests in a {P
8
W
48
} Archetypal Polyoxotungstate Host: Enhanced Proton Conductivity via Metal‐Oxo Cluster within Cluster Assemblies. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806086] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Peng Yang
- Smart Hybrid Materials Laboratory (SHMs)Advanced Membranes and Porous Materials CenterKing Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Maryam Alsufyani
- Smart Hybrid Materials Laboratory (SHMs)Advanced Membranes and Porous Materials CenterKing Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Abdul‐Hamid Emwas
- Core LabsKing Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Chaoqin Chen
- Clean Combustion Research CenterKing Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Niveen M. Khashab
- Smart Hybrid Materials Laboratory (SHMs)Advanced Membranes and Porous Materials CenterKing Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
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9
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Three-dimensional architectures based on 1:1 type lanthanide-substituted Keggin-type polyoxometalates and lanthanide cations. INORG CHEM COMMUN 2017. [DOI: 10.1016/j.inoche.2017.04.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Wan R, Ma P, Han M, Zhang D, Zhang C, Niu J, Wang J. Discovery and isolation of the trans-isomers of two 1 : 2-type lanthanide-containing monolacunary Dawson-type tungstophosphates: [LnIII(α2-P2W17O61)2]17− (Ln = La, Ce). Dalton Trans 2017; 46:5398-5405. [DOI: 10.1039/c7dt00250e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Two novel trans-isomers of 1 : 2-type lanthanide-containing monolacunary Dawson-type tungstophosphates [Ln(α2-P2W17O61)2]17− (Ln = LaIII (1), CeIII (2)) were successfully isolated and characterized.
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Affiliation(s)
- Rong Wan
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Pengtao Ma
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Mengdan Han
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Dongdi Zhang
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Chao Zhang
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Jingyang Niu
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Jingping Wang
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
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11
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Iijima J, Naruke H. Effect of valence of lanthanide ion and molecular symmetry in polyoxotungstoborate on the molecular structure and spectrochemical properties. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.08.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Li S, Zhang L, Chai D, Pang H, Ma H. Self-assembly of polyoxometalate-based hybrid aggregates: from a monomer to dimers by changing the pH value of reaction systems. NEW J CHEM 2017. [DOI: 10.1039/c7nj02475d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
This work is the first example of the self-assembly of polyoxometalate-based hybrid aggregates by changing the pH value of reaction systems.
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Affiliation(s)
- Shaobin Li
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040
- China
| | - Li Zhang
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040
- China
| | - Dongfeng Chai
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040
- China
| | - Haijun Pang
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040
- China
| | - Huiyuan Ma
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040
- China
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13
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Luong TKN, Mihaylov TT, Absillis G, Shestakova P, Pierloot K, Parac-Vogt TN. Phosphate Ester Bond Hydrolysis Promoted by Lanthanide-Substituted Keggin-type Polyoxometalates Studied by a Combined Experimental and Density Functional Theory Approach. Inorg Chem 2016; 55:9898-9911. [PMID: 27657461 DOI: 10.1021/acs.inorgchem.6b01802] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Hydrolytic cleavage of 4-nitrophenyl phosphate (NPP), a commonly used DNA model substrate, was examined in the presence of series of lanthanide-substituted Keggin-type polyoxometalates (POMs) [Me2NH2]11[CeIII(PW11O39)2], [Me2NH2]10[CeIV(PW11O39)2] (abbreviated as (CeIV(PW11)2), and K4[EuPW11O39] by means of NMR and luminescence spectroscopies and density functional theory (DFT) calculations. Among the examined complexes, the Ce(IV)-substituted Keggin POM (CeIV(PW11)2) showed the highest reactivity, and its aqueous speciation was fully determined under different conditions of pD, temperature, concentration, and ionic strength by means of 31P and 31P diffusion-ordered NMR spectroscopy. The cleavage of the phosphoester bond of NPP in the presence of (CeIV(PW11)2) proceeded with an observed rate constant kobs = (5.31 ± 0.06) × 10-6 s-1 at pD 6.4 and 50 °C. The pD dependence of NPP hydrolysis exhibits a bell-shaped profile, with the fastest rate observed at pD 6.4. The formation constant (Kf = 127 M-1) and catalytic rate constant (kc = 19.41 × 10-5 s-1) for the NPP-Ce(IV)-Keggin POM complex were calculated, and binding between CeIV(PW11)2 and the phosphate group of NPP was also evidenced by the change of the chemical shift of the 31P nucleus in NPP upon addition of the POM complex. DFT calculations revealed that binding of NPP to the parent catalyst CeIV(PW11)2 is thermodynamically unlikely. On the contrary, formation of complexes with the monomeric 1:1 species, CeIVPW11, is considered to be more favorable, and the most stable complex, [CeIVPW11(H2O)2(NPP-κO)2]7-, was found to involve two NPP ligands coordinated to the CeIVcenter of CeIVPW11 in the monodentate fashion. The formation of such species is considered to be responsible for the hydrolytic activity of CeIV(PW11)2 toward phosphomonoesters. On the basis of these findings a principle mechanism for the hydrolysis of NPP by the POM is proposed.
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Affiliation(s)
| | | | | | - Pavletta Shestakova
- NMR Laboratory, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences , Acad. G. Bontchev Str., B1.9, 1113 Sofia, Bulgaria
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14
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Syntheses and electrochemical properties of three supramolecular architectures based on Keggin silicontungstates and different metal-organic units. Struct Chem 2016. [DOI: 10.1007/s11224-014-0549-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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15
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Sun JW, Yan PF, An GH, Sha JQ, Wang C, Li GM. POM species, temperature and counterions modulated the various dimensionalities of POM-based metal–organic frameworks. Dalton Trans 2016; 45:1657-67. [DOI: 10.1039/c5dt04094a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of six POM-based metal–organic frameworks with various dimensionalities have been isolated by tuning the reaction conditions (POM species, reaction temperature and counterions).
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Affiliation(s)
- Jing-Wen Sun
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- P. R. China
| | - Peng-Fei Yan
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- P. R. China
| | - Guang-Hui An
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- P. R. China
| | - Jing-Quan Sha
- School of Pharmacy
- Jiamusi University
- Jiamusi
- P. R. China
| | - Cheng Wang
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- P. R. China
| | - Guang-Ming Li
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- P. R. China
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16
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Sap A, De Zitter E, Van Meervelt L, Parac-Vogt TN. Structural Characterization of the Complex between Hen Egg-White Lysozyme and Zr(IV) -Substituted Keggin Polyoxometalate as Artificial Protease. Chemistry 2015; 21:11692-5. [PMID: 26179600 DOI: 10.1002/chem.201501998] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Indexed: 11/11/2022]
Abstract
Successful co-crystallization of a noncovalent complex between hen egg-white lysozyme (HEWL) and the monomeric Zr(IV) -substituted Keggin polyoxometalate (POM) (Zr1 K1), (Et2 NH2)3 [Zr(PW11 O39)] (1), has been achieved, and its single-crystal X-ray structure has been determined. The dimeric Zr(IV) -substituted Keggin-type polyoxometalate (Zr1 K2), (Et2 NH2)10 [Zr(PW11 O39 )2] (2), has been previously shown to exhibit remarkable selectivity towards HEWL hydrolysis. The reported X-ray structure shows that the hydrolytically active Zr(IV) -substituted Keggin POM exists as a monomeric species. Prior to hydrolysis, this monomer interacts with HEWL in the vicinity of the previously identified cleavage sites found at Trp28-Val29 and Asn44-Arg45, through water-mediated H-bonding and electrostatic interactions. Three binding sites are observed at the interface of the negatively charged Keggin POM and the positively charged regions of HEWL at: 1) Gly16, Tyr20, and Arg21; 2) Asn44, Arg45, and Asn46; and 3) Arg128.
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Affiliation(s)
- Annelies Sap
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001 Leuven, Heverlee (Belgium)
| | - Elke De Zitter
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001 Leuven, Heverlee (Belgium)
| | - Luc Van Meervelt
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001 Leuven, Heverlee (Belgium)
| | - Tatjana N Parac-Vogt
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001 Leuven, Heverlee (Belgium).
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17
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Saad A, Zhu W, Rousseau G, Mialane P, Marrot J, Haouas M, Taulelle F, Dessapt R, Serier-Brault H, Rivière E, Kubo T, Oldfield E, Dolbecq A. Polyoxomolybdate Bisphosphonate Heterometallic Complexes: Synthesis, Structure, and Activity on a Breast Cancer Cell Line. Chemistry 2015; 21:10537-47. [DOI: 10.1002/chem.201406565] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 03/12/2015] [Indexed: 01/15/2023]
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18
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Goovaerts V, Stroobants K, Absillis G, Parac-Vogt TN. Eu(III) luminescence and tryptophan fluorescence spectroscopy as a tool for understanding interactions between hen egg white lysozyme and metal-substituted Keggin type polyoxometalates. J Inorg Biochem 2015; 150:72-80. [PMID: 25870147 DOI: 10.1016/j.jinorgbio.2015.03.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 03/17/2015] [Accepted: 03/26/2015] [Indexed: 01/11/2023]
Abstract
The interaction between the lacunary Keggin K7PW11O39, the Eu(III)-substituted Keggin K4EuPW11O39 (Eu-Keggin) and the Ce(IV)-substituted Keggin [Me2NH2]10[Ce(PW11O39)2] (Ce-Keggin) polyoxometalates (POMs), and the proteins hen egg white lysozyme (HEWL) and the structurally homologous α-lactalbumin (α-LA) was studied by steady state and time-resolved Eu(III) luminescence and tryptophan (Trp) fluorescence spectroscopy. The excitation spectrum of Eu-Keggin at lower concentrations ([Eu-Keggin]<100 μM) is dominated by a ligand-to-metal charge transfer band (291 nm). For higher concentrations ([Eu-Keggin]>250 μM) the (5)L6←(7)F0 transition becomes the most intense peak. In the absence of protein, the number of coordinated water molecules to the Eu(III) centre of Eu-Keggin is 4, indicating a 1:1 Eu(III):POM species. In the presence of phosphate buffer this number linearly decreases from 4 to 2 upon increasing phosphate buffer concentration. Upon addition of HEWL, there are no coordinated water molecules, suggesting interaction between Eu-Keggin and the protein surface. In addition, this interaction results in a more than threefold increase of the hypersensitive (5)D0→(7)F2 transition for the Eu-Keggin/HEWL mixture. The calculated association constant amounted to 2.2×10(2) M(-1) for the Eu-Keggin/HEWL complex. Tryptophan fluorescence quenching studies were performed and the quenching constants were calculated to be 9.1×10(4) M(-1), 4×10(4) M(-1) and 4.1×10(5) M(-1) for the lacunary Keggin/HEWL, the Eu-Keggin/HEWL and the Ce-Keggin/HEWL complexes, respectively. The number of bound POM molecules to HEWL was 1.04 for the lacunary Keggin POM, and 1.0 for Eu-Keggin, indicating the formation of a 1:1 POM/HEWL complex. The value of 1.38 for Ce-Keggin might indicate a transition from 1:1 to 1:2 interaction.
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Affiliation(s)
- Vincent Goovaerts
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Karen Stroobants
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Gregory Absillis
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
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Kafawein J, Juwhari HK, AlDamen MA. Synthesis and Crystal Structure of New Lacunary Wells–Dawson with an Unprecedented Eu-Substituted Sandwiched Cluster. J CLUST SCI 2015. [DOI: 10.1007/s10876-015-0867-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Fei F, An H, Meng C, Wang L, Wang H. Lanthanide-supported molybdenum–vanadium oxide clusters: syntheses, structures and catalytic properties. RSC Adv 2015. [DOI: 10.1039/c4ra16237d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Three new species, originating from β-[Mo6V2O26]6− polyoxoanion and lanthanides, as heterogeneous catalysts exhibit good catalytic activities toward the cyanosilylation reaction.
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Affiliation(s)
- Fei Fei
- College of Chemistry
- Dalian University of Technology
- Dalian 116023
- P. R. China
| | - Haiyan An
- College of Chemistry
- Dalian University of Technology
- Dalian 116023
- P. R. China
| | - Changgong Meng
- College of Chemistry
- Dalian University of Technology
- Dalian 116023
- P. R. China
| | - Lin Wang
- College of Chemistry
- Dalian University of Technology
- Dalian 116023
- P. R. China
| | - Huilong Wang
- College of Chemistry
- Dalian University of Technology
- Dalian 116023
- P. R. China
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21
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Li S, Zhang L, Ma H, Pang H, Zhao C. Tuning the topology structures of polymolybdate-based hybrids from interpenetrated framework to interdigitated architecture via changing polymolybdate clusters. NEW J CHEM 2015. [DOI: 10.1039/c5nj00238a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three distinct hybrids were synthesized by modulating polyoxomolybdates, which suggests that both the size and the charge of polyoxometalates play a key role in the assembling.
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Affiliation(s)
- Shaobin Li
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040
- China
| | - Li Zhang
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040
- China
| | - Huiyuan Ma
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040
- China
| | - Haijun Pang
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040
- China
| | - Chunyan Zhao
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040
- China
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22
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Luong TKN, Absillis G, Shestakova P, Parac-Vogt TN. Solution Speciation of the Dinuclear ZrIV-Substituted Keggin Polyoxometalate [{α-PW11O39Zr(μ-OH)(H2O)}2]8-and Its Reactivity towards DNA-Model Phosphodiester Hydrolysis. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402735] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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23
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Yang P, Xiang Y, Lin Z, Bassil BS, Cao J, Fan L, Fan Y, Li MX, Jiménez-Lozano P, Carbó JJ, Poblet JM, Kortz U. Alkaline earth guests in polyoxopalladate chemistry: from nanocube to nanostar via an open-shell structure. Angew Chem Int Ed Engl 2014; 53:11974-8. [PMID: 25220307 DOI: 10.1002/anie.201407090] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Indexed: 11/05/2022]
Abstract
The three novel, discrete palladium(II)-oxo clusters [CaPd12O8(PhAsO3)8](6-) (CaPd12), [SrPd12O6(OH)3(PhAsO3)6(OAc)3](4-) (SrPd12), and [BaPd15O10(PhAsO3)10](8-) (BaPd15) encapsulating alkaline earth metal ions were prepared and fully characterized by a multitude of solution and solid-state physicochemical techniques. We have discovered a structure-directing template effect induced by the respective size of the alkaline earth guest ion, which determines the detailed condensation arrangement of the peripheral Pd(II)-oxo shell. The unprecedented SrPd12 with an open-shell type structure is of particular importance and reflects a successful strategy for deliberate design of new structural classes of polyoxo-noble-metalates. Furthermore, the unusual acetate-water ligand exchange phenomenon renders SrPd12 as a promising candidate for noble-metal-based catalysis.
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Affiliation(s)
- Peng Yang
- Jacobs University, School of Engineering and Science, P.O. Box 750561, 28725 Bremen (Germany) http://www.jacobs-university.de/ses/ukortz
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24
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Yang P, Xiang Y, Lin Z, Bassil BS, Cao J, Fan L, Fan Y, Li MX, Jiménez-Lozano P, Carbó JJ, Poblet JM, Kortz U. Erdalkalimetalle als Gastionen in der Polyoxopalladatchemie: vom Nanowürfel über eine offenschalige Struktur zum Nanostern. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407090] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Li HW, Wang Y, Zhang T, Wu Y, Wu L. Selective Binding of Amino Acids on Europium-Substituted Polyoxometalates and the Interaction-Induced Luminescent Enhancement Effect. Chempluschem 2014. [DOI: 10.1002/cplu.201402091] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Goovaerts V, Stroobants K, Absillis G, Parac-Vogt TN. Molecular interactions between serum albumin proteins and Keggin type polyoxometalates studied using luminescence spectroscopy. Phys Chem Chem Phys 2014; 15:18378-87. [PMID: 24064593 DOI: 10.1039/c3cp52848k] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The interaction between the plenary Keggin H3PW12O40, lacunary Keggin K7PW11O39 and the Eu(III)-substituted Keggin K4EuPW11O39 (Eu-Keggin) type polyoxometalates (POMs), and the proteins human and bovine serum albumin (HSA and BSA) was studied using steady state and time-resolved Eu(III) luminescence and tryptophan (Trp) fluorescence spectroscopy. The excitation spectrum of the Eu-Keggin POM is dominated by a ligand-to-metal charge transfer band at 291 nm. In the absence of proteins, the number of water molecules coordinated in the first coordination sphere of the Eu(III) center of Eu-Keggin was determined to be 4, indicating that Eu(III) occurs as a 1 : 1 isomer in solution. In the presence of HSA or BSA, the number of coordinated water molecules decreased to 0 and 1, respectively, suggesting interaction between the Eu-Keggin POM and the protein surface. As a result of this interaction, a five-fold increase of the hypersensitive (5)D0 → (7)F2 transition in the luminescence intensity was observed for the Eu-Keggin-HSA complex. The association constants were calculated to be 1.5 × 10(2) M(-1) and 2.0 × 10(3) M(-1) for the Eu-Keggin-HSA and Eu-Keggin-BSA complexes, respectively. Tryptophan fluorescence quenching studies were performed and the quenching constants were calculated using a Stern-Volmer analysis. The obtained values of the quenching constants were 6.1 × 10(4) M(-1) and 2.0 × 10(6) M(-1) for the Eu-Keggin-HSA and Eu-Keggin-BSA complexes, respectively. The surface map of both proteins shows that the cavity containing the tryptophan has a positive surface potential, providing a specific binding site at the surface of albumin proteins for the negatively charged POM.
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Affiliation(s)
- Vincent Goovaerts
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
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27
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Zhang BS, Wu CS, Qiu JP, Li YX, Liu ZX. α-Keggin tungstogermanate-supported transition metal complexes: hydrothermal synthesis, characterization, and magnetism of Cu2(phen)4(GeW12O40) and [Ni2(bpy)4(H2O)2(GeW12O40)]⋅2H2O. J COORD CHEM 2014. [DOI: 10.1080/00958972.2014.904855] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Bi-Song Zhang
- Institute of Materia Medica, College of Pharmaceutics and Material Engineering, Jinhua Polytechnic, Jinhua, PR China
| | - Chang-Sheng Wu
- Institute of Materia Medica, College of Pharmaceutics and Material Engineering, Jinhua Polytechnic, Jinhua, PR China
| | - Jian-Ping Qiu
- Institute of Materia Medica, College of Pharmaceutics and Material Engineering, Jinhua Polytechnic, Jinhua, PR China
| | - Yun-Xia Li
- Institute of Materia Medica, College of Pharmaceutics and Material Engineering, Jinhua Polytechnic, Jinhua, PR China
| | - Zhen-Xiang Liu
- Institute of Materia Medica, College of Pharmaceutics and Material Engineering, Jinhua Polytechnic, Jinhua, PR China
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28
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Yu T, Wang K, Ma H, Pang H, Li S. Assembly of co-bimb-polyoxotungstate hybrids: from 1D chain to 3D framework influenced by the charge of Keggin anions. RSC Adv 2014. [DOI: 10.1039/c3ra45456h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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29
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Li S, Ma H, Pang H, Zhang Z, Yu Y, Liu H, Yu T. Tuning the dimension of POM-based inorganic–organic hybrids from 3D self-penetrating framework to 1D poly-pendant chain via changing POM clusters and introducing secondary spacers. CrystEngComm 2014. [DOI: 10.1039/c3ce42064g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The four compounds show distinct structure motifs, which illustrate that the POMs and the secondary spacers are key factors to tune the dimension of the POM-based hybrids.
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Affiliation(s)
- Shaobin Li
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040, China
| | - Huiyuan Ma
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040, China
| | - Haijun Pang
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040, China
| | - Zhuanfang Zhang
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040, China
| | - Yan Yu
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040, China
| | - Heng Liu
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040, China
| | - Tingting Yu
- Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150040, China
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30
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Gupta R, Saini MK, Doungmene F, de Oliveira P, Hussain F. Lanthanoid containing phosphotungstates: the syntheses, crystal structure, electrochemistry, photoluminescence and magnetic properties. Dalton Trans 2014; 43:8290-9. [DOI: 10.1039/c4dt00260a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A series of Peacock and Weakley type dimers was synthesized in a one pot reaction with high yield using ligand [P2W19O69(H2O)]14−. All nano clusters were structurally characterized by various analytical techniques.
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Affiliation(s)
- Rakesh Gupta
- Department of Chemistry
- University of Delhi
- Delhi – 110007, India
| | | | - Floriant Doungmene
- Batiment 350
- Laboratoire de Chimie-Physique
- UMR 8000 CNRS
- Université Paris Sud
- 91405 Orsay Cedex, France
| | - Pedro de Oliveira
- Batiment 350
- Laboratoire de Chimie-Physique
- UMR 8000 CNRS
- Université Paris Sud
- 91405 Orsay Cedex, France
| | - Firasat Hussain
- Department of Chemistry
- University of Delhi
- Delhi – 110007, India
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31
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Granadeiro CM, Silva P, Saini VK, Paz FAA, Pires J, Cunha-Silva L, Balula SS. Novel heterogeneous catalysts based on lanthanopolyoxometalates supported on MIL-101(Cr). Catal Today 2013. [DOI: 10.1016/j.cattod.2013.03.042] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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32
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Li XX, Cheng L, Yang GY. Open frameworks based on mono-lanthanide-substituted polyoxometaloaluminate building units: Syntheses, structures and properties. J SOLID STATE CHEM 2013. [DOI: 10.1016/j.jssc.2013.04.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Synthesis and structural characterization of [CeIV(α2-P2W17O61)2]16− in the solid state and in aqueous solution. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.01.067] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Neves CS, Granadeiro CM, Cunha-Silva L, Ananias D, Gago S, Feio G, Carvalho PA, Eaton P, Balula SS, Pereira E. Europium Polyoxometalates Encapsulated in Silica Nanoparticles - Characterization and Photoluminescence Studies. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201201482] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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35
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Granadeiro CM, de Castro B, Balula SS, Cunha-Silva L. Lanthanopolyoxometalates: From the structure of polyanions to the design of functional materials. Polyhedron 2013. [DOI: 10.1016/j.poly.2012.09.037] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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36
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Du DY, Yan LK, Su ZM, Li SL, Lan YQ, Wang EB. Chiral polyoxometalate-based materials: From design syntheses to functional applications. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2012.10.004] [Citation(s) in RCA: 194] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Stroobants K, Moelants E, Ly HGT, Proost P, Bartik K, Parac-Vogt TN. Polyoxometalates as a Novel Class of Artificial Proteases: Selective Hydrolysis of Lysozyme under Physiological pH and Temperature Promoted by a Cerium(IV) Keggin-Type Polyoxometalate. Chemistry 2013; 19:2848-58. [DOI: 10.1002/chem.201203020] [Citation(s) in RCA: 123] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 11/15/2012] [Indexed: 11/10/2022]
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38
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Ni L, Spingler B, Weyeneth S, Patzke GR. Trilacunary Keggin-Type POMs as Versatile Building Blocks for Lanthanoid Silicotungstates. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201201186] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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39
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Shu QX, Sun GY, Wang XB, Hu XL. Hydrothermal synthesis and crystal structure of a novel rare-earth tungsten phosphate supramolecular compound. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2012.04.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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40
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Li F, Guo W, Xu L, Ma L, Wang Y. Two dysprosium-incorporated tungstoarsenates: synthesis, structures and magnetic properties. Dalton Trans 2012; 41:9220-6. [PMID: 22729234 DOI: 10.1039/c2dt12277d] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two dysprosium-containing tungstoarsenates [C(NH(2))(3)](11)[Dy(2)(Hcit)(2)(AsW(10)O(38))]·9H(2)O (1) and K(8-n)H(3-n)[Dy(3-n)K(n)(H(2)O)(3)(CO(3))(A-α-AsW(9)O(34))(A-β-AsW(9)O(34))]·22H(2)O (n = 0 or 1) (2) have been synthesized and characterized by single-crystal X-ray diffraction, elemental analyses, thermogravimetric analyses and infrared spectroscopy. Compound 1 is a citrate-decorated Keggin type di-substituted Ln/POM derivative with the two non-adjacent substituted sites occupied. Compound 2 is composed of two different trivacant Keggin unit isomers [A-α-AsW(9)O(34)](9-) and [A-β-AsW(9)O(34)](9-), linked to each other via one {Dy(3-n)K(n)(H(2)O)(3)(CO(3))}((7 - 2n)+) (n = 0 or 1) unit, where CO(3)(2-) is encapsulated in the triangle plane, resulting in a stable dysprosium carbonate-containing sandwich-type polyoxoanion with D(2h) symmetry. The investigation on both static and dynamic magnetic properties of 1 and 2 show that the magnetic relaxation behavior of 2 appear in a static magnetic field of 5000 Oe, while 1 shows no positive out-of-phase ac susceptibility.
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Affiliation(s)
- Fengyan Li
- Key Laboratory of Polyoxometalate Science of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, PR China
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41
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El Moll H, Zhu W, Oldfield E, Rodriguez-Albelo LM, Mialane P, Marrot J, Vila N, Mbomekallé IM, Rivière E, Duboc C, Dolbecq A. Polyoxometalates functionalized by bisphosphonate ligands: synthesis, structural, magnetic, and spectroscopic characterizations and activity on tumor cell lines. Inorg Chem 2012; 51:7921-31. [PMID: 22725619 DOI: 10.1021/ic3010079] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the synthesis and characterization of eight new Mo, W, or V-containing polyoxometalate (POM) bisphosphonate complexes with metal nuclearities ranging from 1 to 6. The compounds were synthesized in water by treating Mo(VI), W(VI), V(IV), or V(V) precursors with biologically active bisphosphonates H(2)O(3)PC(R)(OH)PO(3)H(2) (R = C(3)H(6)NH(2), Ale; R = CH(2)S(CH(3))(2), Sul and R = C(4)H(5)N(2), Zol, where Ale = alendronate, Sul = (2-Hydroxy-2,2-bis-phosphono-ethyl)-dimethyl-sulfonium and Zol = zoledronate). Mo(6)(Sul)(2) and Mo(6)(Zol)(2) contain two trinuclear Mo(VI) cores which can rotate around a central oxo group while Mo(Ale)(2) and W(Ale)(2) are mononuclear species. In V(5)(Ale)(2) and V(5)(Zol)(2) a central V(IV) ion is surrounded by two V(V) dimers bound to bisphosphonate ligands. V(6)(Ale)(4) can be viewed as the condensation of one V(5)(Ale)(2) with one additional V(IV) ion and two Ale ligands, while V(3)(Zol)(3) is a triangular V(IV) POM. These new POM bisphosphonates complexes were all characterized by single-crystal X-ray diffraction. The stability of the Mo and W POMs was studied by (31)P NMR spectroscopy and showed that all compounds except the mononuclear Mo(Ale)(2) and W(Ale)(2) were stable in solution. EPR measurements performed on the vanadium derivatives confirmed the oxidation state of the V ions and evidenced their stability in aqueous solution. Electrochemical studies on V(5)(Ale)(2) and V(5)(Zol)(2) showed reduction of V(V) to V(IV), and magnetic susceptibility investigations on V(3)(Zol)(3) enabled a detailed analysis of the magnetic interactions. The presence of zoledronate or vanadium correlated with the most potent activity (IC(50)~1-5 μM) against three human tumor cell lines.
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Affiliation(s)
- Hani El Moll
- Institut Lavoisier de Versailles, UMR 8180, Université de Versailles Saint-Quentin en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles cedex, France
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42
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Li CC, Liu SX, Li SJ, Yang Y, Jin HY, Ma FJ. Assembly of Saturated Nb/W Mixed-Addendum Polyoxometalate [P2W15Nb3O62]9- and Lanthanide Ions (Ln = Eu, Ce). Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101347] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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43
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Decomposition of the lanthanide-containing sandwich-type polyoxometalates: Synthesis and characterization of new multi samarium-containing polyoxometalates. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2011.12.046] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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44
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Wang K, Zhang D, Ma J, Ma P, Niu J, Wang J. Three-dimensional lanthanide polyoxometalate organic complexes: correlation of structure with properties. CrystEngComm 2012. [DOI: 10.1039/c2ce06492h] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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45
|
Yang LJ, Xu L, Li FY, Wang YC, Xu BB. A novel sandwich-type europium-substituted germanomolybdate linked with coordination cation [Cu(en)2]2+. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2011.11.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
46
|
Wang X, Liu X, Tian A, Ying J, Lin H, Liu G, Gao Q. A novel 2D → 3D {Co6PW9}-based framework extended by semi-rigid bis(triazole) ligand. Dalton Trans 2012; 41:9587-9. [DOI: 10.1039/c2dt00039c] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
47
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Li SJ, Liu SX, Ma NN, Qiu YQ, Miao J, Li CC, Tang Q, Xu L. Constructing nanosized polyanions with diverse structures by the self-assembly of W/Nb mixed-addendum polyoxometalate and lanthanide ion. CrystEngComm 2012. [DOI: 10.1039/c1ce06225e] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
48
|
An H, Zhang H, Chen Z, Li Y, Liu X, Chen H. A series of three-dimensional architectures constructed from lanthanide-substituted polyoxometalosilicates and lanthanide cations or lanthanide–organic complexes as linkers. Dalton Trans 2012; 41:8390-400. [DOI: 10.1039/c2dt30251a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
49
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Zhang S, Wang Y, Zhao J, Ma P, Wang J, Niu J. Two types of oxalate-bridging rare-earth-substituted Keggin-type phosphotungstates {[(α-PW11O39)RE(H2O)]2(C2O4)}10− and {(α-x-PW10O38)RE2(C2O4)(H2O)2}3−. Dalton Trans 2012; 41:3764-72. [DOI: 10.1039/c2dt12202b] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
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Ritchie C, Speldrich M, Gable RW, Sorace L, Kögerler P, Boskovic C. Utilizing the Adaptive Polyoxometalate [As2W19O67(H2O)]14–To Support a Polynuclear Lanthanoid-Based Single-Molecule Magnet. Inorg Chem 2011; 50:7004-14. [DOI: 10.1021/ic200366a] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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