1
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Recent Advances of Ti/Zr-Substituted Polyoxometalates: From Structural Diversity to Functional Applications. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248799. [PMID: 36557932 PMCID: PMC9788577 DOI: 10.3390/molecules27248799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/07/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022]
Abstract
Polyoxometalates (POMs), a large family of anionic polynuclear metal-oxo clusters, have received considerable research attention due to their structural versatility and diverse physicochemical properties. Lacunary POMs are key building blocks for the syntheses of functional POMs due to their highly active multidentate O-donor sites. In this review, we have addressed the structural diversities of Ti/Zr-substituted POMs based on the polymerization number of POM building blocks and the number of Ti and Zr centers. The synthetic strategies and relevant catalytic applications of some representative Ti/Zr-substituted POMs have been discussed in detail. Finally, the outlook on the future development of this area is also prospected.
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2
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Al-Sayed E, Rompel A. Lanthanides Singing the Blues: Their Fascinating Role in the Assembly of Gigantic Molybdenum Blue Wheels. ACS NANOSCIENCE AU 2022; 2:179-197. [PMID: 35726275 PMCID: PMC9204829 DOI: 10.1021/acsnanoscienceau.1c00036] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 01/12/2022] [Accepted: 01/12/2022] [Indexed: 01/16/2023]
Abstract
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Molybdenum blues
(MBs) are a distinct class of polyoxometalates,
exhibiting versatile/impressive architectures and high structural
flexibility. In acidified and reduced aqueous environments, isopolymolybdates
generate precisely organizable building blocks, which enable unique
nanoscopic molecular systems (MBs) to be constructed and further fine-tuned
by hetero elements such as lanthanide (Ln) ions. This Review discusses
wheel-shaped MB-based structure types with strong emphasis on the
∼30 Ln-containing MBs as of August 2021, which include both
organically hybridized and nonhybridized structures synthesized to
date. The spotlight is thereby put on the lanthanide ions and ligand
types, which are crucial for the resulting Ln-patterns and alterations
in the gigantic structures. Several critical steps and reaction conditions
in their synthesis are highlighted, as well as appropriate methods
to investigate them both in solid state and in solution. The final
section addresses the homogeneous/heterogeneous catalytic, molecular
recognition and separation properties of wheel-shaped Ln-MBs, emphasizing
their inimitable behavior and encouraging their application in these
areas.
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Affiliation(s)
- Emir Al-Sayed
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstraße 14, 1090 Wien, Austria
| | - Annette Rompel
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstraße 14, 1090 Wien, Austria
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3
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Covalently tethering disulfonic acid moieties onto polyoxometalate boosts acid strength and catalytic performance for hydroxyalkylation/alkylation reaction. Sci China Chem 2022. [DOI: 10.1007/s11426-021-1181-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Abstract
The quest to find milder and more sustainable methods to generate highly reactive, carbon-centred intermediates has led to a resurgence of interest in radical chemistry. In particular, carboxylic acids are seen as attractive radical precursors due their availability, low cost, diversity, and sustainability. Moreover, the corresponding nucleophilic carbon-radical can be easily accessed through a favourable radical decarboxylation process, extruding CO2 as a traceless by-product. This review summarizes the recent progress on using carboxylic acids directly as convenient radical precursors for the formation of carbon-carbon bonds via the 1,4-radical conjugate addition (Giese) reaction.
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Affiliation(s)
- David M Kitcatt
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
| | - Simon Nicolle
- GlaxoSmithKline, Gunnels Wood Rd, Stevenage SG1 2NY, UK
| | - Ai-Lan Lee
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
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5
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Vilona D, Lelli M, Dumont E, Lacôte E. Organo-Polyoxometalate-Based Hydrogen-Bond Catalysis. Chemistry 2021; 27:17761-17764. [PMID: 34643968 DOI: 10.1002/chem.202102807] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 10/13/2021] [Indexed: 11/06/2022]
Abstract
Several urea-inserted organo-polyoxometalates (POMs) derived from polyoxotungstovanadate [P2 V3 W15 O61 ]9- were prepared. The insertion of the carbonyl into the polyoxometallic framework activates the urea toward Hydrogen-bond catalysis. This was shown on the Friedel-Crafts arylation of trans-β-nitrostyrene. Modelling shows that the most stable form of the organo-POMs features a cis-trans arrangement of the two N-H bonds, but that the likely catalytically active trans-trans form is accessible at room temperature. Finally, it is possible that the oxo substituents next to the vanadium atoms may help the approach of the nucleophile via H-bonding.
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Affiliation(s)
- Debora Vilona
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, CNES, ArianeGroup, LHCEP, Bât. Raulin, 2 rue Victor Grignard, 69622, Villeurbanne, France.,Univ Lyon, Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, CNRS, CRMN, 5 rue de la Doua, 69100, Villeurbanne, France.,Univ Lyon, ENS Lyon, Univ Claude Bernard Lyon 1, CNRS, LCENS, UMR 5182, ENS de Lyon, 46 allée d'Italie, 69364, Lyon cedex 07, France
| | - Moreno Lelli
- Univ Lyon, Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, CNRS, CRMN, 5 rue de la Doua, 69100, Villeurbanne, France.,Magnetic Resonance Center and Department of Chemistry, University of Florence, via Luigi Sacconi 6, 50019, Sesto Fiorentino, Italy
| | - Elise Dumont
- Univ Lyon, ENS Lyon, Univ Claude Bernard Lyon 1, CNRS, LCENS, UMR 5182, ENS de Lyon, 46 allée d'Italie, 69364, Lyon cedex 07, France
| | - Emmanuel Lacôte
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, CNES, ArianeGroup, LHCEP, Bât. Raulin, 2 rue Victor Grignard, 69622, Villeurbanne, France
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6
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Zhao W, Zeng X, Huang L, Qiu S, Xie J, Yu H, Wei Y. Oxidative dehydrogenation of hydrazines and diarylamines using a polyoxomolybdate-based iron catalyst. Chem Commun (Camb) 2021; 57:7677-7680. [PMID: 34254091 DOI: 10.1039/d1cc02753k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report an efficient method for the oxidative dehydrogenation of hydrazines and diarylamines in aqueous ethanol using Anderson-type polyoxomolybdate-based iron(iii) as a catalyst and hydrogen peroxide as an oxidant. A series of azo compounds and tetraarylhydrazines were obtained in moderate to excellent yields. The reaction conditions and substrate scopes are complementary or superior to those of more established protocols. In addition, the catalyst shows good stability and reusability in water. The preliminary mechanistic studies suggest that a radical process is involved in the reaction.
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Affiliation(s)
- Weizhe Zhao
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, P. R. China.
| | - Xianghua Zeng
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, P. R. China.
| | - Lei Huang
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, P. R. China.
| | - Shiqin Qiu
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, P. R. China.
| | - Jingyan Xie
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, P. R. China.
| | - Han Yu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, P. R. China.
| | - Yongge Wei
- Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China.
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7
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de Azambuja F, Lenie J, Parac-Vogt TN. Homogeneous Metal Catalysts with Inorganic Ligands: Probing Ligand Effects in Lewis Acid Catalyzed Direct Amide Bond Formation. ACS Catal 2020. [DOI: 10.1021/acscatal.0c04189] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Jille Lenie
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
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8
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Lian L, Chen X, Yi X, Liu Y, Chen W, Zheng A, Miras HN, Song YF. Modulation of Self-Separating Molecular Catalysts for Highly Efficient Biomass Transformations. Chemistry 2020; 26:11900-11908. [PMID: 32329538 PMCID: PMC7540606 DOI: 10.1002/chem.202001451] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Indexed: 11/10/2022]
Abstract
The energetically viable fabrication of stable and highly efficient solid acid catalysts is one of the key steps in large‐scale transformation processes of biomass resources. Herein, the covalent modification of the classical Dawson polyoxometalate (POMs) with sulfonic acids (‐SO3H) is reported by grafting sulfonic acid groups on the POM's surface followed by oxidation of (3‐mercaptopropyl)trimethoxysilane. The acidity of TBA6‐P2W17‐SO3H (TBA=tetrabutyl ammonium) has been demonstrated by using 31P NMR spectroscopy, clearly indicating the presence of strong Brønsted acid sites. The presence of TBA counterions renders the solid acid catalyst as a promising candidate for phase transfer catalytic processes. The TBA6‐P2W17‐SO3H shows remarkable activity and selectivity, excellent stability, and great substrate compatibility for the esterification of free fatty acids (FFA) with methanol and conversion into biodiesel at 70 °C with >98 % conversion of oleic acid in 20 min. The excellent catalytic performance can be attributed to the formation of a catalytically active emulsion, which results in a uniform catalytic behavior during the reaction, leading to efficient interaction between the substrate and the active sites of the catalyst. Most importantly, the catalyst can be easily recovered and reused without any loss of its catalytic activity owing to its excellent phase transfer properties. This work offers an efficient and cost‐effective strategy for large‐scale biomass conversion applications.
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Affiliation(s)
- Lifei Lian
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P.R. China
| | - Xiang Chen
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P.R. China
| | - Xianfeng Yi
- Wuhan Center for Magnetic Resonance, Key Laboratory of, Magnetic Resonance in Biological Systems, State Key Laboratory of, Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, P.R. China
| | - Yubing Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P.R. China
| | - Wei Chen
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P.R. China
| | - Anmin Zheng
- Wuhan Center for Magnetic Resonance, Key Laboratory of, Magnetic Resonance in Biological Systems, State Key Laboratory of, Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, P.R. China
| | - Haralampos N Miras
- WestCHEM, School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Yu-Fei Song
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P.R. China
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9
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de Bournonville S, Vangrunderbeeck S, Ly HGT, Geeroms C, De Borggraeve WM, Parac-Vogt TN, Kerckhofs G. Exploring polyoxometalates as non-destructive staining agents for contrast-enhanced microfocus computed tomography of biological tissues. Acta Biomater 2020; 105:253-262. [PMID: 31996331 DOI: 10.1016/j.actbio.2020.01.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 01/08/2020] [Accepted: 01/22/2020] [Indexed: 11/28/2022]
Abstract
To advance clinical translation of regenerative medicine, there is, amongst others, still need for better insights in tissue development and disease. For this purpose, more precise imaging of the 3D microstructure and spatial interrelationships of the different tissues within organs is crucial. Despite being destructive towards the sample, conventional histology still is the gold standard for structural analysis of biological tissues. It is, however, limited by 2D sections of a 3D object, prohibiting full 3D structural analysis. MicroCT has proven to provide full 3D structural information of mineralized tissues and dense biomaterials. However, the intrinsic low X-ray absorption of soft tissues requires contrast-enhancing staining agents (CESAs). In a previous study, we showed that hafnium-substituted Wells-Dawson polyoxometalate (Hf-WD POM) allows simultaneous contrast-enhanced microCT (CE-CT) visualization of bone and its marrow vascularization and adiposity. In this study, other POM species have been examined for their potential as soft tissue CESAs. Four Wells-Dawson POMs, differing in structure and overall charge, were used to stain murine long bones and kidneys. Their staining potential and diffusion rate were compared to those of Hf-WD POM and phosphotungstic acid (PTA), a frequently used but destructive CESA. Monolacunary Wells-Dawson POM (Mono-WD POM) showed similar soft tissue enhancement as Hf-WD POM and PTA. Moreover, Mono-WD POM is less destructive, shows a better diffusion than PTA, and its synthesis requires less time and cost than Hf-WD POM. Finally, the solubility of Mono-WD POM was improved by addition of lithium chloride (LiCl) to the staining solution, enhancing further the soft tissue contrast. STATEMENT OF SIGNIFICANCE: To advance clinical translation of regenerative medicine, there is, amongst others, still need for better insights in tissue development and disease. For this purpose, more precise imaging of the 3D microstructure and spatial interrelationships of the different tissues within organs is crucial. Current standard structural analysis techniques (e.g. 2D histomorphometry), however, do not allow full 3D assessment. Contrast-enhanced X-ray computed tomography has emerged as a powerful 3D structural characterization tool of soft biological tissues. In this study, from a library of Wells Dawson polyoxometalates (WD POMs), we identified monolacunary WD POM together with lithium chloride, dissolved in phosphate buffered saline, as the most suitable contrast-enhancing staining agent solution for different biological tissues without tissue shrinkage.
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Affiliation(s)
- Sébastien de Bournonville
- Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium; Biomechanics Section, Department of Mechanical Engineering, KU Leuven, Leuven, Belgium
| | - Sarah Vangrunderbeeck
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Leuven, Belgium; Biomechanics Lab, Institute of Mechanics, Materials, and Civil Engineering, UCLouvain, Louvain-la-Neuve, Belgium
| | - Hong Giang T Ly
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Leuven, Belgium; Department of Chemistry, College of Natural Sciences, Can Tho University, Can Tho, Vietnam
| | - Carla Geeroms
- Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium; Skeletal Biology and Engineering Research Center, Department Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Wim M De Borggraeve
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Leuven, Belgium
| | - Tatjana N Parac-Vogt
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Leuven, Belgium
| | - Greet Kerckhofs
- Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium; Biomechanics Lab, Institute of Mechanics, Materials, and Civil Engineering, UCLouvain, Louvain-la-Neuve, Belgium; IREC, Institute of Experimental and Clinical Research, UCLouvain, Woluwé-Saint-Lambert, Belgium; Department Materials Engineering, KU Leuven, Leuven, Belgium.
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10
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Hu Q, Jayasinghe‐Arachchige VM, Sharma G, Serafim LF, Paul TJ, Prabhakar R. Mechanisms of peptide and phosphoester hydrolysis catalyzed by two promiscuous metalloenzymes (insulin degrading enzyme and glycerophosphodiesterase) and their synthetic analogues. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2020. [DOI: 10.1002/wcms.1466] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Qiaoyu Hu
- Department of Chemistry, University of Miami Coral Gables Florida
| | | | - Gaurav Sharma
- Department of Chemistry, University of Miami Coral Gables Florida
| | | | - Thomas J. Paul
- Department of Chemistry, University of Miami Coral Gables Florida
| | - Rajeev Prabhakar
- Department of Chemistry, University of Miami Coral Gables Florida
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11
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Ibrahim M, Mbomekallé IM, de Oliveira P, Baksi A, Carter AB, Peng Y, Bergfeldt T, Malik S, Anson CE. Syntheses, Crystal Structure, Electrocatalytic, and Magnetic Properties of the Monolanthanide-Containing Germanotungstates [Ln(H 2O) n GeW 11O 39] 5- (Ln = Dy, Er, n = 4,3). ACS OMEGA 2019; 4:21873-21882. [PMID: 31891065 PMCID: PMC6933596 DOI: 10.1021/acsomega.9b02846] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 11/18/2019] [Indexed: 06/10/2023]
Abstract
Two monolanthanide-containing polyanions based on monolacunary Keggin germanotungstates [Ln(H2O) n GeW11O39]5- (Ln = Dy, Er, n = 4,3) have been synthesized in simple one-pot synthetic procedure and compositionally characterized in solid state by single-crystal X-ray diffraction, powder X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, and elemental analysis. Electronic absorption and emission spectra of the title compounds in solution were also studied. The [DyIII(H2O)4GeW11O39]5- Keggin POM exhibits a slow relaxation of magnetization. The cyclic voltammetry measurements and mass spectrometry were carried out to check the stability of the compounds in solution. Both polyanions prove efficient in the electrocatalytic reduction of nitrite. To our knowledge, this observation establishes the first example of electrocatalysis of nitrite reduction by all inorganic monolanthanide-containing germanotungstates family.
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Affiliation(s)
- Masooma Ibrahim
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology, Hermann von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Israël M. Mbomekallé
- Equipe
d'Electrochimie et Photo-électrochimie, Laboratoire de
Chimie
Physique, Université Paris-Sud, UMR 8000, CNRS-Université
Paris Saclay, Orsay F-91405, France
| | - Pedro de Oliveira
- Equipe
d'Electrochimie et Photo-électrochimie, Laboratoire de
Chimie
Physique, Université Paris-Sud, UMR 8000, CNRS-Université
Paris Saclay, Orsay F-91405, France
| | - Ananya Baksi
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology, Hermann von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Anthony B. Carter
- Institute
of Inorganic Chemistry, Karlsruhe Institute
of Technology, Engesserstrasse
15, 76128 Karlsruhe, Germany
- School
of Chemistry University of Southampton University Road, SO17 1BJ Southampton, U.K.
| | - Yan Peng
- Institute
of Inorganic Chemistry, Karlsruhe Institute
of Technology, Engesserstrasse
15, 76128 Karlsruhe, Germany
| | - Thomas Bergfeldt
- Institutes
for Applied Materials (IAM-AWP), Karlsruhe
Institute of Technology (KIT), 76131 Karlsruhe, Germany
| | - Sharali Malik
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology, Hermann von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Christopher E. Anson
- Institute
of Inorganic Chemistry, Karlsruhe Institute
of Technology, Engesserstrasse
15, 76128 Karlsruhe, Germany
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12
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Ly HGT, Mihaylov TT, Proost P, Pierloot K, Harvey JN, Parac‐Vogt TN. Chemical Mimics of Aspartate‐Directed Proteases: Predictive and Strictly Specific Hydrolysis of a Globular Protein at Asp−X Sequence Promoted by Polyoxometalate Complexes Rationalized by a Combined Experimental and Theoretical Approach. Chemistry 2019; 25:14370-14381. [DOI: 10.1002/chem.201902675] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/13/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Hong Giang T. Ly
- Laboratory of Bioinorganic ChemistryDepartment of ChemistryKU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Tzvetan T. Mihaylov
- Laboratory of Computational Coordination ChemistryDepartment of ChemistryKU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Paul Proost
- Laboratory of Molecular ImmunologyRega InstituteDepartment of Microbiology, Immunology, and TransplantationKU Leuven Herestraat 49 3000 Leuven Belgium
| | - Kristine Pierloot
- Laboratory of Computational Coordination ChemistryDepartment of ChemistryKU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Jeremy N. Harvey
- Laboratory of Computational Coordination ChemistryDepartment of ChemistryKU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Tatjana N. Parac‐Vogt
- Laboratory of Bioinorganic ChemistryDepartment of ChemistryKU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
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13
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de Azambuja F, Parac-Vogt TN. Water-Tolerant and Atom Economical Amide Bond Formation by Metal-Substituted Polyoxometalate Catalysts. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03415] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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14
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Jayasinghe‐Arachchige VM, Hu Q, Sharma G, Paul TJ, Lundberg M, Quinonero D, Parac‐Vogt TN, Prabhakar R. Hydrolysis of chemically distinct sites of human serum albumin by polyoxometalate: A hybrid QM/MM (ONIOM) study. J Comput Chem 2018; 40:51-61. [DOI: 10.1002/jcc.25528] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 06/22/2018] [Accepted: 06/23/2018] [Indexed: 12/28/2022]
Affiliation(s)
| | - Qiaoyu Hu
- Department of Chemistry University of Miami Coral Gables Florida 33146
| | - Gaurav Sharma
- Department of Chemistry University of Miami Coral Gables Florida 33146
| | - Thomas J. Paul
- Department of Chemistry University of Miami Coral Gables Florida 33146
| | - Marcus Lundberg
- Department of Chemistry ‐ Ångström Laboratory Uppsala University 751 21, Uppsala Sweden
| | - David Quinonero
- Department of Chemistry Universitat de les Illes Balears Palma de Mallorca Spain
| | | | - Rajeev Prabhakar
- Department of Chemistry University of Miami Coral Gables Florida 33146
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15
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Vandebroek L, De Zitter E, Ly HGT, Conić D, Mihaylov T, Sap A, Proost P, Pierloot K, Van Meervelt L, Parac-Vogt TN. Protein-Assisted Formation and Stabilization of Catalytically Active Polyoxometalate Species. Chemistry 2018; 24:10099-10108. [PMID: 29797738 DOI: 10.1002/chem.201802052] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 05/17/2018] [Indexed: 01/24/2023]
Abstract
The effect of the protein environment on the formation and stabilization of an elusive catalytically active polyoxometalate (POM) species, K6 [Hf(α2 -P2 W17 O61 )] (1), is reported. In the co-crystal of hen egg-white lysozyme (HEWL) with 1, the catalytically active monomeric species is observed, originating from the dimeric 1:2 POM form, while it is intrinsically unstable under physiological pH conditions. The protein-assisted dissociation of the dimeric POM was rationalized by means of DFT calculations. The dissociation process is unfavorable in bulk water, but becomes favorable in the protein-POM complex due to the low dielectric response at the protein surface. The crystal structure shows that the monomeric form is stabilized by electrostatic and water-mediated hydrogen bonding interactions with the protein. It interacts at three distinct sites, close to the aspartate-containing hydrolysis sites, demonstrating high selectivity towards peptide bonds containing this residue.
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Affiliation(s)
- Laurens Vandebroek
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
| | - Elke De Zitter
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
| | - Hong Giang Thi Ly
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
| | - Dragan Conić
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
| | - Tzvetan Mihaylov
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
| | - Annelies Sap
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
| | - Paul Proost
- Department of Microbiology and Immunology, Rega Institute, Herestraat 49 box 1042, 3000, Leuven, Belgium
| | - Kristine Pierloot
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
| | - Luc Van Meervelt
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
| | - Tatjana N Parac-Vogt
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
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16
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Paul TJ, Parac-Vogt TN, Quiñonero D, Prabhakar R. Investigating Polyoxometalate–Protein Interactions at Chemically Distinct Binding Sites. J Phys Chem B 2018; 122:7219-7232. [DOI: 10.1021/acs.jpcb.8b02931] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Thomas J. Paul
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
| | | | - David Quiñonero
- Department of Chemistry, Universitat de les Illes Balears, Palma de Mallorca 07122, Spain
| | - Rajeev Prabhakar
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
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17
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Li S, Zhou Y, Peng Q, Wang R, Feng X, Liu S, Ma X, Ma N, Zhang J, Chang Y, Zheng Z, Chen X. Controllable Synthesis and Catalytic Performance of Nanocrystals of Rare-Earth-Polyoxometalates. Inorg Chem 2018; 57:6624-6631. [DOI: 10.1021/acs.inorgchem.8b00763] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Shujun Li
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yanfang Zhou
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Qingpo Peng
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Ruoya Wang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xiaoge Feng
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Shuxia Liu
- Key Laboratory of Polyoxometalates Science of Ministry of Education, College of Chemistry, Northeast Normal University Changchun, Jilin 130024, China
| | - Xiaoming Ma
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Nana Ma
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Jie Zhang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yi Chang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Zhiping Zheng
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518000, China
| | - Xuenian Chen
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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18
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Li N, Jiang D, Pan Q, Zhao J, Zhang S, Xing B, Du Y, Zhang Z, Liu S. Polyoxometalates-based chiral frameworks involving helical motifs generated by spontaneous resolution. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.01.055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Lu C, Jin M, Wang X, Zhai C, Zhao J. Syntheses, crystal structures and properties of two 1-D organic–inorganic hybrid phosphotungstates based on Dawson subunits and lanthanide complexes. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2017.12.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Mozafari R, Heidarizadeh F, Azaroon M. Designing a novel tetradentate polyoxometalate eco-catalyst for the synthesis of β-aminocyclohexanone derivatives in water. RSC Adv 2018; 8:40261-40266. [PMID: 35558257 PMCID: PMC9091466 DOI: 10.1039/c8ra08259f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 12/21/2018] [Accepted: 11/25/2018] [Indexed: 12/01/2022] Open
Abstract
The synthesis of a series of known β-aminocyclohexanones has been accomplished using pentaerythrityl tetramethyl imidazolium phosphotungstate (C(MIM-PTA)4) as a new tetradentate acidic catalyst. It was prepared via condensation of pentaerythrityl tetrabromide with methyl imidazole. Then, bulky anion H2PW12O401− was substituted with Br− in the structure. This tetradentate catalyst provides designable cations and anions. Anions have two types of acids, acidic protons, and metals with Lewis acidity. In order to test the efficient catalytic behavior of the tetradentate catalyst, a controlled reaction was performed using benzaldehyde, aniline and cyclohexanone. Imine from the condensation of benzaldehyde and aniline was observed in the absence of ionic catalyst instead of desired products. Thus, this reaction would be attractive because of the time, energy, and raw material saving considerations because of the absence of isolation of intermediates and stereospecificity. The catalyst shows high catalytic activity such that after four recycles the product was obtained with high yield and purity. This reaction was performed at room temperature. Although high temperature could improve the reaction rate, it contributes to side reactions and oxidation of aldehyde and amine. The catalyst was characterized by elemental analysis, FT-IR spectroscopy, 1H NMR, 13C NMR, and TGA. The synthesis of a series of known β-aminocyclohexanones has been accomplished using pentaerythrityl tetramethyl imidazolium phosphotungstate (C(MIM-PTA)4) as a new tetradentate acidic catalyst.![]()
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Affiliation(s)
- Roya Mozafari
- Chemistry Department
- College of Science
- Shahid Chamran University
- Ahvaz
- Iran
| | | | - Maedeh Azaroon
- Chemistry Department
- College of Science
- Shahid Chamran University
- Ahvaz
- Iran
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21
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Ravelli D, Fagnoni M, Fukuyama T, Nishikawa T, Ryu I. Site-Selective C–H Functionalization by Decatungstate Anion Photocatalysis: Synergistic Control by Polar and Steric Effects Expands the Reaction Scope. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03354] [Citation(s) in RCA: 226] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Davide Ravelli
- PhotoGreen
Lab, Department of Chemistry, University of Pavia, Viale Taramelli
12, 27100 Pavia, Italy
| | - Maurizio Fagnoni
- PhotoGreen
Lab, Department of Chemistry, University of Pavia, Viale Taramelli
12, 27100 Pavia, Italy
| | - Takahide Fukuyama
- Department
of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Tomohiro Nishikawa
- Department
of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Ilhyong Ryu
- Department
of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
- Department
of Applied Chemistry, National Chiao Tung University, Hsinchu 300, Taiwan
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22
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23
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24
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Sap A, Vandebroek L, Goovaerts V, Martens E, Proost P, Parac-Vogt TN. Highly Selective and Tunable Protein Hydrolysis by a Polyoxometalate Complex in Surfactant Solutions: A Step toward the Development of Artificial Metalloproteases for Membrane Proteins. ACS OMEGA 2017; 2:2026-2033. [PMID: 30023653 PMCID: PMC6044816 DOI: 10.1021/acsomega.7b00168] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 04/28/2017] [Indexed: 05/17/2023]
Abstract
This study represents the first example of protein hydrolysis at pH = 7.4 and 60 °C by a metal-substituted polyoxometalate (POM) in the presence of a zwitterionic surfactant. Edman degradation results show that in the presence of 0.5% w/v 3-[(3-cholamidopropyl)dimethylammonio]-1-propanesulfonate (CHAPS) detergent, a Zr(IV)-substituted Wells-Dawson-type POM, K15H[Zr(α2-P2W17O61)2]·25H2O (Zr1-WD2), selectively hydrolyzes human serum albumin exclusively at peptide bonds involving Asp or Glu residues, which contain carboxyl groups in their side chains. The selectivity and extent of protein cleavage are tuned by the CHAPS surfactant by an unfolding mechanism that provides POM access to the hydrolyzed peptide bonds.
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Affiliation(s)
- Annelies Sap
- Department
of Chemistry, KU Leuven, Celestijnenlaan 200F, Box 2404, 3001 Leuven, Belgium
| | - Laurens Vandebroek
- Department
of Chemistry, KU Leuven, Celestijnenlaan 200F, Box 2404, 3001 Leuven, Belgium
| | - Vincent Goovaerts
- Department
of Chemistry, KU Leuven, Celestijnenlaan 200F, Box 2404, 3001 Leuven, Belgium
| | - Erik Martens
- Department
of Microbiology and Immunology, KU Leuven, Herestraat 49,
Box 1042, 3000 Leuven, Belgium
| | - Paul Proost
- Department
of Microbiology and Immunology, KU Leuven, Herestraat 49,
Box 1042, 3000 Leuven, Belgium
| | - Tatjana N. Parac-Vogt
- Department
of Chemistry, KU Leuven, Celestijnenlaan 200F, Box 2404, 3001 Leuven, Belgium
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25
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Gong P, Li Y, Zhai C, Luo J, Tian X, Chen L, Zhao J. Syntheses, structural characterization and photophysical properties of two series of rare-earth-isonicotinic-acid containing Waugh-type manganomolybdates. CrystEngComm 2017. [DOI: 10.1039/c6ce02428a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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26
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Sap A, Van Tichelen L, Mortier A, Proost P, Parac-Vogt TN. Tuning the Selectivity and Reactivity of Metal-Substituted Polyoxometalates as Artificial Proteases by Varying the Nature of the Embedded Lewis Acid Metal Ion. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201601098] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Annelies Sap
- KU Leuven; Celestijnenlaan 200F 3001 Leuven Belgium
| | | | - Anneleen Mortier
- Department of Microbiology and Immunology; KU Leuven; Minderbroedersstraat 10 3000 Leuven Belgium
| | - Paul Proost
- Department of Microbiology and Immunology; KU Leuven; Minderbroedersstraat 10 3000 Leuven Belgium
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27
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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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28
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Cascade Synthesis of 2-Cyanoacrylamides through Deacetalization and/or Knoevenagel Condensation followed by Selective Monohydration of Acetals and Aldehydes over Solid Acid Ferrites. ChemCatChem 2016. [DOI: 10.1002/cctc.201600426] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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29
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Lachkar D, Vilona D, Dumont E, Lelli M, Lacôte E. Grafting of Secondary Diolamides onto [P
2
W
15
V
3
O
62
]
9−
Generates Hybrid Heteropoly Acids. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510954] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- David Lachkar
- ICSN CNRS 1 avenue de la Terrasse 91198 Gif-sur-Yvette Cedex France
| | - Debora Vilona
- Univ Lyon CPE Lyon Université Claude Bernard Lyon1 CNRS Institut de chimie de Lyon C2P2 UMR 5265 69616 Villeurbanne France
- Univ Lyon Université Claude Bernard Lyon1 ENS Lyon CNRS Institut de chimie de Lyon ISA-CRMN UMR 5280 69100 Villeurbanne France
- Uni Lyon ENS de Lyon CNRS Université Lyon 1 Laboratoire de chimie, UMR 5182 69342 Lyon France
| | - Elise Dumont
- Uni Lyon ENS de Lyon CNRS Université Lyon 1 Laboratoire de chimie, UMR 5182 69342 Lyon France
| | - Moreno Lelli
- Univ Lyon Université Claude Bernard Lyon1 ENS Lyon CNRS Institut de chimie de Lyon ISA-CRMN UMR 5280 69100 Villeurbanne France
| | - Emmanuel Lacôte
- ICSN CNRS 1 avenue de la Terrasse 91198 Gif-sur-Yvette Cedex France
- Univ Lyon CPE Lyon Université Claude Bernard Lyon1 CNRS Institut de chimie de Lyon C2P2 UMR 5265 69616 Villeurbanne France
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30
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Lachkar D, Vilona D, Dumont E, Lelli M, Lacôte E. Grafting of Secondary Diolamides onto [P2 W15 V3 O62 ](9-) Generates Hybrid Heteropoly Acids. Angew Chem Int Ed Engl 2016; 55:5961-5. [PMID: 27061016 DOI: 10.1002/anie.201510954] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 02/26/2016] [Indexed: 12/22/2022]
Abstract
The Dawson tungstovanadate [P2 W15 V3 O62 ](9-) can be grafted to secondary diolamides. The electron-withdrawing character of the polyanion increases the acidity of the amide proton, leading to an organo-polyoxometalate, which can be used as a Brønsted organocatalyst. High-field NMR and DFT modeling indicate that the amide proton stays on the nitrogen and that the exalted acidity derives from the interaction between the organic and inorganic parts of the organo-polyoxometalate. The amide-inserted vanadotungstates thus form a new family of (hybrid) heteropolyacids, offering new perspectives for the application of POM-based catalysis in organic synthesis.
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Affiliation(s)
- David Lachkar
- ICSN CNRS, 1 avenue de la Terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Debora Vilona
- Univ Lyon, CPE Lyon, Université Claude Bernard Lyon1, CNRS, Institut de chimie de Lyon, C2P2 UMR 5265, 69616, Villeurbanne, France.,Univ Lyon, Université Claude Bernard Lyon1, ENS Lyon, CNRS, Institut de chimie de Lyon, ISA-CRMN UMR 5280, 69100, Villeurbanne, France.,Uni Lyon, ENS de Lyon, CNRS, Université Lyon 1, Laboratoire de chimie, UMR 5182, 69342, Lyon, France
| | - Elise Dumont
- Uni Lyon, ENS de Lyon, CNRS, Université Lyon 1, Laboratoire de chimie, UMR 5182, 69342, Lyon, France.
| | - Moreno Lelli
- Univ Lyon, Université Claude Bernard Lyon1, ENS Lyon, CNRS, Institut de chimie de Lyon, ISA-CRMN UMR 5280, 69100, Villeurbanne, France.
| | - Emmanuel Lacôte
- ICSN CNRS, 1 avenue de la Terrasse, 91198, Gif-sur-Yvette Cedex, France. .,Univ Lyon, CPE Lyon, Université Claude Bernard Lyon1, CNRS, Institut de chimie de Lyon, C2P2 UMR 5265, 69616, Villeurbanne, France.
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31
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Congdon EA, Nolin KA. Calcium catalyzed Mukaiyama–Mannich addition of silyl enol ethers to nitrones. CATAL COMMUN 2016. [DOI: 10.1016/j.catcom.2016.02.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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32
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Quanten T, Shestakova P, Van Den Bulck D, Kirschhock C, Parac-Vogt TN. Interaction Study and Reactivity of Zr(IV) -Substituted Wells-Dawson Polyoxometalate towards Hydrolysis of Peptide Bonds in Surfactant Solutions. Chemistry 2016; 22:3775-84. [PMID: 26833582 DOI: 10.1002/chem.201503976] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Indexed: 11/09/2022]
Abstract
The interaction between the 1:2 Zr(IV) :Wells-Dawson complex, K15 H[Zr(α2 -P2 W17 O61 )2] (1), and a range of surfactants was studied in detail with the aim of developing metal-substituted POMs as potential artificial proteases for membrane proteins. The surfactants include the positively charged cetyl(trimethyl)ammonium bromide (CTAB), the negatively charged sodium dodecyl sulfate (SDS), the neutral Triton X-100 (TX-100), and zwitterionic 3-[dodecyl(dimethyl)ammonio]-1-propanesulfonate (Zw3-13) and 3-[dimethyl(3-{[(3α,5β,7α,12α)-3,7,12-trihydroxy-24-oxocholan-24-yl]amino}propyl)ammonio]-1-propanesulfonate (CHAPS). A combination of multinuclear (1)H, (13)C, and (31) P NMR spectroscopy, (1)H diffusion-ordered NMR spectroscopy ((1)H DOSY), and nuclear Overhauser effect spectroscopy (NOESY) was used to examine the interaction between 1 and each surfactant on the molecular level. Cationic surfactant CTAB caused precipitation of 1 due to strong electrostatic interactions, while the anionic SDS and neutral TX-100 surfactants did not exhibit any interaction at neutral pD. (1)H DOSY NMR spectroscopy indicated an interaction between 1 and zwitterionic surfactants Zw3-12 and CHAPS, which occurs via the positively charged ammonium group in the surfactant molecule. In the presence of anionic, neutral, and zwitterionic surfactants, 1 preserves its catalytic activity towards the hydrolysis of the peptide bond in the dipeptide glycyl-l-histidine (GH). The fastest hydrolysis was observed at pD 7.0 and could be rationalized by taking into account pD-dependent speciation of 1 and coordination properties of GH.
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Affiliation(s)
- Thomas Quanten
- Department Of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Pavletta Shestakova
- NMR Laboratory, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bontchef Str., B1.9, Sofia, 1113, Bulgaria
| | - Dries Van Den Bulck
- Department Of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Christine Kirschhock
- Centre for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Tatjana N Parac-Vogt
- Department Of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium.
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33
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Abstract
Within the green chemistry context, heterogeneous catalysis is more and more applied to organic synthesis. The well known ‘click chemistry’ and especially its flagship, the copper-catalyzed azide–alkyne cycloaddition reaction (CuAAC), is now catch up by such heterogenisation process and copper ions or metals have been grafted or deposited on or into various solids, such as (bio)polymers, charcoal, silica, zeolites, POM or MOF.
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Affiliation(s)
- S. Chassaing
- Institut des Technologies Avancées en Sciences du Vivant
- Université de Toulouse
- France
| | - V. Bénéteau
- Institut de Chimie de Strasbourg
- UMR 7177
- Université de Strasbourg
- 67000 Strasbourg
- France
| | - P. Pale
- Institut de Chimie de Strasbourg
- UMR 7177
- Université de Strasbourg
- 67000 Strasbourg
- France
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34
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Kawahara R, Niinomi K, Kondo JN, Hibino M, Mizuno N, Uchida S. A functional mesoporous ionic crystal based on polyoxometalate. Dalton Trans 2016; 45:2805-9. [DOI: 10.1039/c5dt04556h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mesoporous ionic crystal is synthesized with a polyoxometalate and a macrocation with polar cyano groups. The compound possesses one-dimensional mesopores and shows high proton conductivity and catalytic activity, which are due to the water molecules in the mesopores.
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Affiliation(s)
- Ryosuke Kawahara
- Department of Basic Science
- School of Arts and Sciences
- The University of Tokyo
- Tokyo 153-8902
- Japan
| | - Kazuma Niinomi
- Department of Basic Science
- School of Arts and Sciences
- The University of Tokyo
- Tokyo 153-8902
- Japan
| | | | - Mitsuhiro Hibino
- Department of Applied Chemistry
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Noritaka Mizuno
- Department of Applied Chemistry
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Sayaka Uchida
- Department of Basic Science
- School of Arts and Sciences
- The University of Tokyo
- Tokyo 153-8902
- Japan
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35
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Ly HGT, Absillis G, Parac-Vogt TN. Influence of the amino acid side chain on peptide bond hydrolysis catalyzed by a dimeric Zr(iv)-substituted Keggin type polyoxometalate. NEW J CHEM 2016. [DOI: 10.1039/c5nj00561b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Structurally different dipeptides were hydrolyzed by [{α-PW11O39Zr-(μ-OH)(H2O)}2]8−. The rate constants were dependent on bulkiness and chemical nature of the dipeptide.
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36
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Trautwein G, El Bakkali B, Alcañiz-Monge J, Artetxe B, Reinoso S, Gutiérrez-Zorrilla JM. Dimeric assemblies of lanthanide-stabilised dilacunary Keggin tungstogermanates: A new class of catalysts for the selective oxidation of aniline. J Catal 2015. [DOI: 10.1016/j.jcat.2015.09.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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37
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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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38
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Synthesis and Characterization of 8-Yttrium(III)-Containing 81-Tungsto-8-Arsenate(III), [Y8(CH3COO)(H2O)18(As2W19O68)4(W2O6)2(WO4)]43−. INORGANICS 2015. [DOI: 10.3390/inorganics3020267] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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39
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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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40
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Crown-Shaped Tungstogermanates as Solvent-Controlled Dual Systems in the Formation of Vesicle-Like Assemblies. Chemistry 2015; 21:7736-45. [DOI: 10.1002/chem.201500373] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Indexed: 01/04/2023]
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41
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Ly HGT, Absillis G, Parac-Vogt TN. Comparative Study of the Reactivity of Zirconium(IV)-Substituted Polyoxometalates towards the Hydrolysis of Oligopeptides. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500161] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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42
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Luong TKN, Shestakova P, Mihaylov TT, Absillis G, Pierloot K, Parac-Vogt TN. Multinuclear diffusion NMR spectroscopy and DFT modeling: a powerful combination for unraveling the mechanism of phosphoester bond hydrolysis catalyzed by metal-substituted polyoxometalates. Chemistry 2015; 21:4428-39. [PMID: 25652658 DOI: 10.1002/chem.201405810] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Indexed: 02/04/2023]
Abstract
A detailed reaction mechanism is proposed for the hydrolysis of the phosphoester bonds in the DNA model substrate bis(4-nitrophenyl) phosphate (BNPP) in the presence of the Zr(IV)-substituted Keggin type polyoxometalate (Et2NH2)8[{α-PW11O39Zr(μ-OH)(H2O)}2]⋅7 H2O (ZrK 2:2) at pD 6.4. Low-temperature (31)P DOSY spectra at pD 6.4 gave the first experimental evidence for the presence of ZrK 1:1 in fast equilibrium with ZrK 2:2 in purely aqueous solution. Moreover, theoretical calculations identified the ZrK 1:1 form as the potentially active species in solution. The reaction intermediates involved in the hydrolysis were identified by means of (1)H/(31)P NMR studies, including EXSY and DOSY NMR spectroscopy, which were supported by DFT calculations. This experimental/theoretical approach enabled the determination of the structures of four intermediate species in which the starting compound BNPP, nitrophenyl phosphate (NPP), or the end product phosphate (P) is coordinated to ZrK 1:1. In the proposed reaction mechanism, BNPP initially coordinates to ZrK 1:1 in a monodentate fashion, which results in hydrolysis of the first phosphoester bond in BNPP and formation of NPP. EXSY NMR studies showed that the bidentate complex between NPP and ZrK 1:1 is in equilibrium with monobound and free NPP. Subsequently, hydrolysis of NPP results in P, which is in equilibrium with its monobound form.
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Affiliation(s)
- Thi Kim Nga Luong
- Laboratory of Bioinorganic Chemistry, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven (Belgium) http://www.chem.kuleuven.be/lbc/
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43
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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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44
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Ma X, Yang W, Chen L, Zhao J. Significant developments in rare-earth-containing polyoxometalate chemistry: synthetic strategies, structural diversities and correlative properties. CrystEngComm 2015. [DOI: 10.1039/c5ce01240f] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In this article, the major progress in rare-earth containing polyoxometalates made in the past decade involving synthetic strategies, structural characteristics and some significant properties related to optics, catalysis and magnetism is highlighted and discussed.
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Affiliation(s)
- Xing Ma
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng, PR China
| | - Wen Yang
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng, PR China
| | - Lijuan Chen
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng, PR China
| | - Junwei Zhao
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng, PR China
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45
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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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46
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Artetxe B, Reinoso S, San Felices L, Lezama L, Gutiérrez-Zorrilla JM, García JA, Galán-Mascarós JR, Haider A, Kortz U, Vicent C. Cation-Directed Dimeric versus Tetrameric Assemblies of Lanthanide-Stabilized Dilacunary Keggin Tungstogermanates. Chemistry 2014; 20:12144-56. [DOI: 10.1002/chem.201403028] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Indexed: 11/11/2022]
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47
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Riflade B, Lachkar D, Oble J, Li J, Thorimbert S, Hasenknopf B, Lacôte E. Pd-Containing Organopolyoxometalates Derived from Dawson Polyoxometalate [P2W15V3O62]9–: Lewis Acidity and Dual Site Catalysis. Org Lett 2014; 16:3860-3. [DOI: 10.1021/ol501644c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Benoît Riflade
- Sorbonne Universités, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
| | - David Lachkar
- ICSN-CNRS,
Bâtiment
27, 1 avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Julie Oble
- Sorbonne Universités, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
- CNRS, UMR
8232,
IPCM, 4 place Jussieu, 75005 Paris, France
| | - Joaquim Li
- Sorbonne Universités, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
| | - Serge Thorimbert
- Sorbonne Universités, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
- CNRS, UMR
8232,
IPCM, 4 place Jussieu, 75005 Paris, France
| | - Bernold Hasenknopf
- Sorbonne Universités, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
- CNRS, UMR
8232,
IPCM, 4 place Jussieu, 75005 Paris, France
| | - Emmanuel Lacôte
- Sorbonne Universités, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
- ICSN-CNRS,
Bâtiment
27, 1 avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
- Université de Lyon, Institut de chimie de Lyon, UMR
5265 CNRS-Université Lyon I-ESCPE Lyon, 43 Bd du 11 novembre 1918, 69616 Villeurbanne, France
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48
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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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49
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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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50
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Ju WW, Zhang HT, Xu X, Zhang Y, Xu Y. Enantiomerically Pure Lanthanide–Organic Polytungstates Exhibiting Two-Photon Absorption Properties. Inorg Chem 2014; 53:3269-71. [DOI: 10.1021/ic500157x] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wei-Wei Ju
- College of Chemistry
and Chemical Engineering, State Key Laboratory of Materials-oriented
Chemical Engineering, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
| | - Hai-Tao Zhang
- College of Chemistry
and Chemical Engineering, State Key Laboratory of Materials-oriented
Chemical Engineering, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
| | - Xiao Xu
- College of Chemistry
and Chemical Engineering, State Key Laboratory of Materials-oriented
Chemical Engineering, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
| | - Yu Zhang
- College of Chemistry
and Chemical Engineering, State Key Laboratory of Materials-oriented
Chemical Engineering, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
| | - Yan Xu
- College of Chemistry
and Chemical Engineering, State Key Laboratory of Materials-oriented
Chemical Engineering, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
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