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Granadeiro CM, Julião D, Ribeiro SO, Cunha-Silva L, Balula SS. Recent advances in lanthanide-coordinated polyoxometalates: from structural overview to functional materials. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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2
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Jelinek L, Mištová E, Kubeil M, Stephan H. Polyoxometalates in Extraction and Sorption Processes. SOLVENT EXTRACTION AND ION EXCHANGE 2021. [DOI: 10.1080/07366299.2021.1874107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ludek Jelinek
- Department of Power Engineering, University of Chemistry and Technology, Prague 6, Czech Republic
| | - Eva Mištová
- Department of Power Engineering, University of Chemistry and Technology, Prague 6, Czech Republic
| | - Manja Kubeil
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Dresden, Germany
| | - Holger Stephan
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Dresden, Germany
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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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4
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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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Luong TKN, Absillis G, Shestakova P, Parac-Vogt TN. Hydrolysis of the RNA model substrate catalyzed by a binuclear Zr(IV)-substituted Keggin polyoxometalate. Dalton Trans 2016; 44:15690-6. [PMID: 26256057 DOI: 10.1039/c5dt02077h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The reactivity and solution behaviour of the binuclear Zr(IV)-substituted Keggin polyoxometalate (Et2NH2)8[{α-PW11O39Zr(μ-OH)(H2O)}2]·7H2O (ZrK 2 : 2) towards phosphoester bond hydrolysis of the RNA model substrate 2-hydroxypropyl-4-nitrophenyl phosphate (HPNP) was investigated at different reaction conditions (pD, temperature, concentration, and ionic strength). The hydrolysis of the phosphoester bond of HPNP, followed by means of (1)H NMR spectroscopy, proceeded with an observed rate constant, kobs = 11.5(±0.42) × 10(-5) s(-1) at pD 6.4 and 50 °C, representing a 530-fold rate enhancement in comparison with the spontaneous hydrolysis of HPNP. (1)H and (31)P NMR spectra indicate that at these reaction conditions the only products of hydrolysis are p-nitrophenol and the corresponding cyclic phosphate ester. The pD dependence of kobs exhibits a bell-shaped profile, with the fastest rate observed at pD 6.4. The formation constant (Kf = 455 M(-1)) and catalytic rate constant (kc = 42 × 10(-5) s(-1)) for the HPNP-ZrK 2 : 2 complex, activation energy (Ea) of 63.35 ± 1.82 kJ mol(-1), enthalpy of activation (ΔH(‡)) of 60.60 ± 2.09 kJ mol(-1), entropy of activation (ΔS(‡)) of -133.70 ± 6.13 J mol(-1) K(-1), and Gibbs activation energy (ΔG(‡)) of 102.05 ± 0.13 kJ mol(-1) at 37 °C were calculated from kinetic experiments. Binding between ZrK 2 : 2 and the P-O bond of HPNP was evidenced by the change in the (31)P chemical shift and signal line-broadening of the (31)P atom in HPNP upon addition of ZrK 2 : 2. Based on (31)P NMR experiments and isotope effect studies, a mechanism for HPNP hydrolysis in the presence of ZrK 2 : 2 was proposed.
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Affiliation(s)
- Thi Kim Nga Luong
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
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Ly HGT, Mihaylov T, Absillis G, Pierloot K, Parac-Vogt TN. Reactivity of Dimeric Tetrazirconium(IV) Wells-Dawson Polyoxometalate toward Dipeptide Hydrolysis Studied by a Combined Experimental and Density Functional Theory Approach. Inorg Chem 2015; 54:11477-92. [PMID: 26599585 DOI: 10.1021/acs.inorgchem.5b02122] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Detailed kinetic studies on the hydrolysis of glycylglycine (Gly-Gly) in the presence of the dimeric tetrazirconium(IV)-substituted Wells-Dawson-type polyoxometalate Na14[Zr4(P2W16O59)2(μ3-O)2(OH)2(H2O)4] · 57H2O (1) were performed by a combination of (1)H, (13)C, and (31)P NMR spectroscopies. The catalyst was shown to be stable under a broad range of reaction conditions. The effect of pD on the hydrolysis of Gly-Gly showed a bell-shaped profile with the fastest hydrolysis observed at pD 7.4. The observed rate constant for the hydrolysis of Gly-Gly at pD 7.4 and 60 °C was 4.67 × 10(-7) s(-1), representing a significant acceleration as compared to the uncatalyzed reaction. (13)C NMR data were indicative for coordination of Gly-Gly to 1 via its amide oxygen and amine nitrogen atoms, resulting in a hydrolytically active complex. Importantly, the effective hydrolysis of a series of Gly-X dipeptides with different X side chain amino acids in the presence of 1 was achieved, and the observed rate constant was shown to be dependent on the volume, chemical nature, and charge of the X amino acid side chain. To give a mechanistic explanation of the observed catalytic hydrolysis of Gly-Gly, a detailed quantum-chemical study was performed. The theoretical results confirmed the nature of the experimentally suggested binding mode in the hydrolytically active complex formed between Gly-Gly and 1. To elucidate the role of 1 in the hydrolytic process, both the uncatalyzed and the polyoxometalate-catalyzed reactions were examined. In the rate-determining step of the uncatalyzed Gly-Gly hydrolysis, a carboxylic oxygen atom abstracts a proton from a solvent water molecule and the nascent OH nucleophile attacks the peptide carbon atom. Analogous general-base activity of the free carboxylic group was found to take place also in the case of polyoxometalate-catalyzed hydrolysis as the main catalytic effect originates from the -C═O···Zr(IV) binding.
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Affiliation(s)
- Hong Giang T Ly
- Laboratory of Bioinorganic Chemistry and ‡Laboratory of Computational Coordination Chemistry, Department of Chemistry, Katholieke Universiteit Leuven , Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Tzvetan Mihaylov
- Laboratory of Bioinorganic Chemistry and ‡Laboratory of Computational Coordination Chemistry, Department of Chemistry, Katholieke Universiteit Leuven , Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Gregory Absillis
- Laboratory of Bioinorganic Chemistry and ‡Laboratory of Computational Coordination Chemistry, Department of Chemistry, Katholieke Universiteit Leuven , Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Kristine Pierloot
- Laboratory of Bioinorganic Chemistry and ‡Laboratory of Computational Coordination Chemistry, Department of Chemistry, Katholieke Universiteit Leuven , Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Tatjana N Parac-Vogt
- Laboratory of Bioinorganic Chemistry and ‡Laboratory of Computational Coordination Chemistry, Department of Chemistry, Katholieke Universiteit Leuven , Celestijnenlaan 200F, 3001 Leuven, Belgium
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Sap A, Absillis G, Parac-Vogt TN. Selective hydrolysis of oxidized insulin chain B by a Zr(IV)-substituted Wells-Dawson polyoxometalate. Dalton Trans 2015; 44:1539-48. [PMID: 25216342 DOI: 10.1039/c4dt01477d] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We report for the first time on the selective hydrolysis of a polypeptide system by a metal-substituted polyoxometalate (POM). Oxidized insulin chain B, a 30 amino acid polypeptide, was selectively cleaved by the Zr(IV)-substituted Wells-Dawson POM, K15H[Zr(α2-P2W17O61)2]·25H2O, under physiological pH and temperature conditions in aqueous solution. HPLC-ESI-MS, LC-MS/MS, MALDI-TOF and MALDI-TOF MS/MS data indicate hydrolysis at the Phe1-Val2, Gln4-His5, Leu6-Cys(SO3H)7, and Gly8-Ser9 peptide bonds. The rate of oxidized insulin chain B hydrolysis (0.45 h(-1) at pH 7.0 and 60 °C) was calculated by fitting the integration values of its HPLC-UV signal to a first-order exponential decay function. (1)H NMR measurements show significant line broadening and shifting of the polypeptide resonances upon addition of the Zr(IV)-POM, indicating that interaction between the Zr(IV)-POM and the polypeptide takes place in solution. Circular dichroism (CD) measurements clearly prove that the flexible unfolded nature of the polypeptide was retained in the presence of the Zr(IV)-POM. The thermal stability of the Zr(IV)-POM in the presence of the polypeptide chain during the hydrolytic reaction was confirmed by (31)P NMR spectroscopy. Despite the highly negative charge of the Zr(IV)-POM, the mechanism of interaction appears to be dominated by a strong metal-directed binding between the positively charged Zr(IV) center and negatively charged amino acid side chains.
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Affiliation(s)
- Annelies Sap
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, B-3001 Heverlee, Belgium.
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Synthesis and Characterisation of the Europium (III) Dimolybdo-Enneatungsto-Silicate Dimer, [Eu(α-SiW9Mo2O39)2]13−. INORGANICS 2015. [DOI: 10.3390/inorganics3030341] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Affiliation(s)
- Sa-Sa Wang
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Guo-Yu Yang
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- MOE
Key Laboratory of Cluster Science, School of Chemistry, Beijing Institute of Technology, Beijing 100081, China
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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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11
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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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12
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Stroobants K, Goovaerts V, Absillis G, Bruylants G, Moelants E, Proost P, Parac-Vogt TN. Molecular origin of the hydrolytic activity and fixed regioselectivity of a Zr(IV) -substituted polyoxotungstate as artificial protease. Chemistry 2014; 20:9567-77. [PMID: 24958622 DOI: 10.1002/chem.201402683] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Indexed: 01/07/2023]
Abstract
A multitechnique approach has been applied in order to identify the thermodynamic and kinetic parameters related to the regioselective hydrolysis of human serum albumin (HSA) promoted by the Wells-Dawson polyoxometalate (POM), K15 H[Zr(α2 -P2 W17 O61 )2 ]. Isothermal titration calorimetry (ITC) studies indicate that up to four POM molecules interact with HSA. While the first interaction site is characterized by a 1:1 binding and an affinity constant of 2×10(8) M(-1) , the three remaining sites are characterized by a lower global affinity constant of 7×10(5) M(-1) . The higher affinity constant at the first site is in accordance with a high quenching constant of 2.2×10(8) M(-1) obtained for fluorescence quenching of the Trp214 residue located in the only positively charged cleft of HSA, in the presence of K15 H[Zr(α2 -P2 W17 O61 )2 ]. In addition, Eu(III) luminescence experiments with an Eu(III) -substituted POM analogue have shown the replacement of water molecules in the first coordination sphere of Eu(III) due to binding of the metal ion to amino acid side chain residues of HSA. All three interaction studies are in accordance with a stronger POM dominated binding at the positive cleft on the one hand, and interaction mainly governed by metal anchoring at the three remaining positions, on the other hand. Hydrolysis experiments in the presence of K15 H[Zr(α2 -P2 W17 O61 )2 ] have demonstrated regioselective cleavage of HSA at the Arg114Leu115, Ala257Asp258, Lys313Asp314 or Cys392Glu393 peptide bonds. This is in agreement with the interaction studies as the Arg114Leu115 peptide bond is located in the positive cleft of HSA and the three remaining peptide bonds are each located near an upstream acidic residue, which can be expected to coordinate to the metal ion. A detailed kinetic study has evidenced the formation of additional fragments upon prolonged reaction times. Edman degradation of the additional reaction products has shown that these fragments result from further hydrolysis at the initially observed cleavage positions, indicating a fixed selectivity for K15 H[Zr(α2 -P2 W17 O61 )2 ].
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Affiliation(s)
- Karen Stroobants
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven (Belgium)
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Zhao C, Glass EN, Sumliner JM, Bacsa J, Kim DT, Guo W, Hill CL. Complexation of metal carbonyl units with [α-PW11O39]7− and [α2-P2W17O61]10−: insights into the chiral “twisted-sandwich” dimeric structures. Dalton Trans 2014; 43:4040-7. [DOI: 10.1039/c3dt53374c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Capturing [M(CO)3]+ (M = Re, Mn) by [α-PW11O39]7− or [α2-P2W17O61]10− leads to polyoxometalate-supported metal carbonyl complexes with chiral “twisted-sandwich” structures.
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Affiliation(s)
| | | | | | - John Bacsa
- Department of Chemistry
- Emory University
- Atlanta, USA
| | | | - Weiwei Guo
- Department of Chemistry
- Emory University
- Atlanta, USA
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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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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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16
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Absillis G, Parac-Vogt TN. Peptide bond hydrolysis catalyzed by the Wells-Dawson Zr(α2-P2W17O61)2 polyoxometalate. Inorg Chem 2012; 51:9902-10. [PMID: 22928475 DOI: 10.1021/ic301364n] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this paper we report the first example of peptide hydrolysis catalyzed by a polyoxometalate complex. A series of metal-substituted Wells-Dawson polyoxometalates were synthesized, and their hydrolytic activity toward the peptide bond in glycylglycine (GG) was examined. Among these, the Zr(IV)- and Hf(IV)-substituted ones were the most reactive. Detailed kinetic studies were performed with the Zr(IV)-substituted Wells-Dawson type polyoxometalate K(15)H[Zr(α(2)-P(2)W(17)O(61))(2)]·25H(2)O which was shown to act as a catalyst for the hydrolysis of the peptide bond in GG. The speciation of K(15)H[Zr(α(2)-P(2)W(17)O(61))(2)]·25H(2)O which is highly dependent on the pD, concentration, and temperature of the solution, was fully determined with the help of (31)P NMR spectroscopy and its influence on the GG hydrolysis rate was examined. The highest reaction rate (k(obs) = 9.2 (±0.2) × 10(-5) min(-1)) was observed at pD 5.0 and 60 °C. A 10-fold excess of GG was hydrolyzed in the presence of K(15)H[Zr(α(2)-P(2)W(17)O(61))(2)]·25H(2)O proving the principles of catalysis. (13)C NMR data suggested the coordination of GG to the Zr(IV) center in K(15)H[Zr(α(2)-P(2)W(17)O(61))(2)]·25H(2)O via its N-terminal amine group and amide carbonyl oxygen. These findings were confirmed by the inactivity of K(15)H[Zr(α(2)-P(2)W(17)O(61))(2)]·25H(2)O toward the N-blocked analogue acetamidoglycylglycinate and the inhibitory effect of oxalic, malic, and citric acid. Triglycine, tetraglycine, and pentaglycine were also fully hydrolyzed in the presence of K(15)H[Zr(α(2)-P(2)W(17)O(61))(2)]·25H(2)O yielding glycine as the final product of hydrolysis. K(15)H[Zr(α(2)-P(2)W(17)O(61))(2)]·25H(2)O also exhibited hydrolytic activity toward a series of other dipeptides.
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Affiliation(s)
- Gregory Absillis
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
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Burton-Pye BP, Jones I, Cutler CS, Howell RC, Francesconi LC. Investigation into the extraction speciation of rare-earth radioisotopes from aqueous solution using polyoxometalates. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2011.09.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Vanhaecht S, Absillis G, Parac-Vogt TN. Hydrolysis of DNA model substrates catalyzed by metal-substituted Wells–Dawson polyoxometalates. Dalton Trans 2012; 41:10028-34. [DOI: 10.1039/c2dt30588g] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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McGregor D, Burton-Pye BP, Howell RC, Mbomekalle IM, Lukens WW, Bian F, Mausolf E, Poineau F, Czerwinski KR, Francesconi LC. Synthesis, Structure Elucidation, and Redox Properties of 99Tc Complexes of Lacunary Wells−Dawson Polyoxometalates: Insights into Molecular 99Tc−Metal Oxide Interactions. Inorg Chem 2011; 50:1670-81. [DOI: 10.1021/ic102111t] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Donna McGregor
- Hunter College of the City University of New York, 695 Park Avenue, New York, New York 10065, United States
- Graduate Center of the City University of New York, New York, New York 10016, United States
| | - Benjamin P. Burton-Pye
- Hunter College of the City University of New York, 695 Park Avenue, New York, New York 10065, United States
| | - Robertha C. Howell
- Hunter College of the City University of New York, 695 Park Avenue, New York, New York 10065, United States
| | - Israel M. Mbomekalle
- Hunter College of the City University of New York, 695 Park Avenue, New York, New York 10065, United States
| | - Wayne W. Lukens
- Chemical Sciences Division, The Glenn T. Seaborg Center, E.O. Lawrence Berkeley National Laboratory (LBNL), One Cyclotron Road, Berkeley, California 94720, United States
| | - Fang Bian
- Hunter College of the City University of New York, 695 Park Avenue, New York, New York 10065, United States
- Graduate Center of the City University of New York, New York, New York 10016, United States
| | - Edward Mausolf
- Department of Chemistry, University of Nevada Las Vegas, Las Vegas, Nevada 89154, United States
| | - Frederic Poineau
- Department of Chemistry, University of Nevada Las Vegas, Las Vegas, Nevada 89154, United States
| | - Kenneth R. Czerwinski
- Department of Chemistry, University of Nevada Las Vegas, Las Vegas, Nevada 89154, United States
| | - Lynn C. Francesconi
- Hunter College of the City University of New York, 695 Park Avenue, New York, New York 10065, United States
- Graduate Center of the City University of New York, New York, New York 10016, United States
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Burton-Pye BP, Francesconi LC. Speciation of organic-soluble europium(iii) α1-Wells–Dawson complexes. Dalton Trans 2011; 40:4421-33. [DOI: 10.1039/c0dt01309a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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21
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Molecular Interaction between a GadoliniumâPolyoxometalate and Human Serum Albumin. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900610] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Granadeiro CM, Ferreira RAS, Soares-Santos PCR, Carlos LD, Nogueira HIS. Lanthanopolyoxometalates as Building Blocks for Multiwavelength Photoluminescent OrganicâInorganic Hybrid Materials. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900615] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Sokolova MN, Fedosseev AM, Andreev GB, Budantseva NA, Yusov AB, Moisy P. Synthesis and Structural Examination of Complexes of Am(IV) and Other Tetravalent Actinides with Lacunary Heteropolyanion α2-P2W17O6110−. Inorg Chem 2009; 48:9185-90. [DOI: 10.1021/ic900710c] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marina N. Sokolova
- A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, 31 Leninskiy pr., Moscow, 119991, Russia
| | - Alexander M. Fedosseev
- A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, 31 Leninskiy pr., Moscow, 119991, Russia
| | - Grigory B. Andreev
- A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, 31 Leninskiy pr., Moscow, 119991, Russia
| | - Nina A. Budantseva
- A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, 31 Leninskiy pr., Moscow, 119991, Russia
| | - Alexander B. Yusov
- A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, 31 Leninskiy pr., Moscow, 119991, Russia
| | - Philippe Moisy
- CEA Marcoule, DRCP/SCPS, BP 17171, 30207 Bagnols sur Cèze Cedex, France
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Boglio C, Hasenknopf B, Lenoble G, Rémy P, Gouzerh P, Thorimbert S, Lacôte E, Malacria M, Thouvenot R. Sensing the Chirality of Dawson Lanthanide Polyoxometalates [α1-LnP2W17O61]7− by Multinuclear NMR Spectroscopy. Chemistry 2008; 14:1532-40. [DOI: 10.1002/chem.200701429] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Chaumont A, Wipff G. Ion aggregation in concentrated aqueous and methanol solutions of polyoxometallates Keggin anions: the effect of counterions investigated by molecular dynamics simulations. Phys Chem Chem Phys 2008; 10:6940-53. [DOI: 10.1039/b810440a] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Bassil BS, Dickman MH, Römer I, von der Kammer B, Kortz U. The Tungstogermanate [Ce20Ge10W100O376(OH)4(H2O)30]56−: A Polyoxometalate Containing 20 Cerium(III) Atoms. Angew Chem Int Ed Engl 2007; 46:6192-5. [PMID: 17640015 DOI: 10.1002/anie.200701422] [Citation(s) in RCA: 212] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Bassem S Bassil
- Jacobs University Bremen, School of Engineering and Science, P.O. Box 750 561, 28725 Bremen, Germany
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Bassil B, Dickman M, Römer I, von der Kammer B, Kortz U. Das Wolframatogermanat [Ce20Ge10W100O376(OH)4(H2O)30]56−: ein Polyoxometallat mit 20 Cer(III)-Atomen. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200701422] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Müller A, Bögge H, Sousa FL, Schmidtmann M, Kurth DG, Volkmer D, van Slageren J, Dressel M, Kistler ML, Liu T. Nanometer-sized molybdenum-iron oxide capsule-surface modifications: external and internal. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2007; 3:986-92. [PMID: 17385209 DOI: 10.1002/smll.200600567] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The cluster {(Mo)Mo5}12Fe(III)30 1 a present in compound 1 (cluster diameter approximately 2.3 nm), which belongs to the family of nanoscale spherical porous {(Mo)Mo5}12{Linker}30 capsules that allow a new type of nanochemistry inside their cavities as well as unprecedented aggregation processes under gaseous, solution, and solid-state conditions, is the starting material for the present investigation. In solution it reacts with LnCl3 x nH2O (Ln = Ce, Pr) thereby replacing six Fe(III) ions with Ln(III) ions to form compounds 2 (Ce) and 3 (Pr). During metal-cation exchange, some of the pentagonal {(Mo)Mo5O21(H2O)6}6- units, which are connected to the Fe(III) centers in 1 a, decompose, thus leading to a temporary capsule opening and uptake of the formed smaller molybdate units into the capsule cavities. In 2 and 3, the pentagonal units are connected via 24 Fe(III) and six Ln(III)-type linkers/spacers representing together the capsule skeletons, which are structurally well-defined in contrast to the capsule contents. The new capsules self-associate into single-layer blackberry-type structures, thus extending the variety of these types of assemblies; the assembly process, that is, the size of the final species, can be controlled by the pH, which allows the generation of differently sized nanoparticles. Magnetic properties of the two new nanomaterials 2 and 3 are also determined.
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Affiliation(s)
- Achim Müller
- Fakultät für Chemie der Universität, Postfach 100131, 33501 Bielefeld, Germany.
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