101
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Xu X, Chen Y, Zhang Y, Liu Y, Chen L, Zhao J. Rare-Earth and Antimony-Oxo Clusters Simultaneously Connecting Antimonotungstates Comprising Divacant and Tetravacant Keggin Fragments. Inorg Chem 2019; 58:11636-11648. [DOI: 10.1021/acs.inorgchem.9b01570] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xin Xu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China
| | - Yanhong Chen
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China
| | - Yan Zhang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China
| | - Yifan Liu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China
| | - Lijuan Chen
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China
| | - Junwei Zhao
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China
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102
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103
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Crans DC, Sánchez-Lombardo I, McLauchlan CC. Exploring Wells-Dawson Clusters Associated With the Small Ribosomal Subunit. Front Chem 2019; 7:462. [PMID: 31334216 PMCID: PMC6624422 DOI: 10.3389/fchem.2019.00462] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 06/11/2019] [Indexed: 01/23/2023] Open
Abstract
The polyoxometalate P2W18O626-, the Wells-Dawson cluster, stabilized the ribosome sufficiently for the crystallographers to solve the phase problem and improve the structural resolution. In the following we characterize the interaction of the Wells-Dawson cluster with the ribosome small subunit. There are 14 different P2W18O626- clusters interacting with the ribosome, and the types of interactions range from one simple residue interaction to complex association of multiple sites including backbone interactions with a Wells-Dawson cluster. Although well-documented that bridging oxygen atoms are the main basic sites on other polyoxometalate interaction with most proteins reported, the W=O groups are the main sites of the Wells-Dawson cluster interacting with the ribosome. Furthermore, the peptide chain backbone on the ribosome host constitutes the main sites that associate with the Wells-Dawson cluster. In this work we investigate the potential of one representative pair of closely-located Wells-Dawson clusters being a genuine Double Wells-Dawson cluster. We found that the Double Wells-Dawson structure on the ribosome is geometrically sound and in line with other Double Wells-Dawson clusters previously observed in the solid state and solution. This information suggests that the Double Wells-Dawson structure on the ribosome is real and contribute to characterization of this particular structure of the ribosome.
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Affiliation(s)
- Debbie C Crans
- Department Chemistry and the Cell and Molecular Biology Program, Colorado State University, Fort Collins, CO, United States
| | - Irma Sánchez-Lombardo
- Department Chemistry and the Cell and Molecular Biology Program, Colorado State University, Fort Collins, CO, United States.,División Académica de Ciencias Básicas, Universidad Juárez Autónoma de Tabasco, Cunduacán, Mexico
| | - Craig C McLauchlan
- Department of Chemistry, Illinois State University, Normal, IL, United States
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104
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Mukhacheva AA, Abramov PA, Sokolov MN. Interaction of Na9[SbW9O33] with Iridium(IV) Hydroxo Complexes. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619040164] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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105
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Li C, Mizuno N, Yamaguchi K, Suzuki K. Self-Assembly of Anionic Polyoxometalate–Organic Architectures Based on Lacunary Phosphomolybdates and Pyridyl Ligands. J Am Chem Soc 2019; 141:7687-7692. [DOI: 10.1021/jacs.9b02541] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chifeng Li
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Noritaka Mizuno
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kazuya Yamaguchi
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kosuke Suzuki
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Precursory Research
for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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106
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Yuan J, Wang L, Wang Y, Dong S, Hao J. Eu 3+-Controlled Fluorescent Bilayer Vesicles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:4125-4132. [PMID: 30773018 DOI: 10.1021/acs.langmuir.9b00302] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
By appropriate substitution, polyoxometalates (POMs) can be modified to be organic-inorganic supramolecules (OISMs) that are nonaqueous or water soluble and form aggregates in solution. Here, we report a new OISM, (TBA)3POM-PPCT, that can self-assemble to form bilayer vesicles controlled by Eu3+ in nonaqueous solution. Dynamic light scattering, transmission and scanning electron microscopy techniques, and atomic force microscopy clearly demonstrated the controllable formation of stable bilayer vesicles with an average hydrodynamic radius of about 510 nm. Because of the coordination between (TBA)3POM-PPCT and Eu3+, the stable vesicles possess fluorescence, determined by studying fluorescence spectra, and show highly selective response to Cu2+, allowing them to function as an ion-detecting platform to Cu2+.
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Affiliation(s)
- Jin Yuan
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Ling Wang
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Yitong Wang
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Shuli Dong
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
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107
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Bijelic A, Aureliano M, Rompel A. Polyoxometalates as Potential Next-Generation Metallodrugs in the Combat Against Cancer. Angew Chem Int Ed Engl 2019; 58:2980-2999. [PMID: 29893459 PMCID: PMC6391951 DOI: 10.1002/anie.201803868] [Citation(s) in RCA: 305] [Impact Index Per Article: 61.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Indexed: 02/05/2023]
Abstract
Polyoxometalates (POMs) are an emerging class of inorganic metal oxides, which over the last decades demonstrated promising biological activities by the virtue of their great diversity in structures and properties. They possess high potential for the inhibition of various tumor types; however, their unspecific interactions with biomolecules and toxicity impede their clinical usage. The current focus of the field of biologically active POMs lies on organically functionalized and POM-based nanocomposite structures as these hybrids show enhanced anticancer activity and significantly reduced toxicity towards normal cells in comparison to unmodified POMs. Although the antitumor activity of POMs is well documented, their mechanisms of action are still not well understood. In this Review, an overview is given of the cytotoxic effects of POMs with a special focus on POM-based hybrid and nanocomposite structures. Furthermore, we aim to provide proposed mode of actions and to identify molecular targets. POMs are expected to develop into the next generation of anticancer drugs that selectively target cancer cells while sparing healthy cells.
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Affiliation(s)
- Aleksandar Bijelic
- Universität WienFakultät für ChemieInstitut für Biophysikalische ChemieAlthanstraße 141090WienAustria
| | - Manuel Aureliano
- Universidade do AlgarveFaculdade de Ciências e Tecnologia (FCT), CCMar8005-139FaroPortugal
| | - Annette Rompel
- Universität WienFakultät für ChemieInstitut für Biophysikalische ChemieAlthanstraße 141090WienAustria
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108
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109
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Tewari S, Adnan M, Balendra, Kumar V, Jangra G, Prakash GV, Ramanan A. Photoluminescence Properties of Two Closely Related Isostructural Series Based on Anderson-Evans Cluster Coordinated With Lanthanides [Ln(H 2O) 7{X(OH) 6Mo 6O 18}]•yH 2O, X = Al, Cr. Front Chem 2019; 6:631. [PMID: 30666304 PMCID: PMC6330572 DOI: 10.3389/fchem.2018.00631] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 12/05/2018] [Indexed: 11/13/2022] Open
Abstract
The paper describes synthesis and structural characterization of the whole series of two closely related lanthanide coordinated chromium or aluminum hexamolybdates (Anderson-Evans cluster) including twelve new members hitherto unreported: [Ln(H2O)7{X(OH)6Mo6O18}]·4H2O and [Ln(H2O)7{X(OH)6Mo6O18}Ln(H2O)7]{X(OH)6Mo6O18}·16H2O where X = Al or Cr and Ln = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y. Crystal structures of all the solids were established by powder and single crystal X-ray diffraction techniques. The two series are dictated by a different aggregation of the same set of molecular species: Lighter lanthanides favor coordination interaction between lanthanide ions and molybdate cluster forming 1D chains (Series I) while the heavier lanthanides result in the stacking of a cation, a pair of lanthanide hydrates coordinating to the cluster, and an anion, the discrete cluster is further stabilized through a large number of water molecules (Series II). Crystallization with Er3+ and Tm3+ ions results in a concomitant mixture of Series I and II. Photoluminescence of single crystals of all the chromium molybdates was dominated by a ruby-like emission including those which contain optically active ions Pr, Sm, Eu, Tb, Dy, and Tm. In contrast, aluminum analogs showed photoluminescence corresponding to characteristic lanthanide emissions. Our results strongly suggest a possible energy transfer from f levels of lanthanide ions to d levels of chromium (III) causing the quenching of lanthanide emission when coordinated with chromium molybdates. Intensity measurements showed that the emission from chromium molybdates are almost two orders of magnitude lower than naturally occurring ruby with broader line widths at room temperature.
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Affiliation(s)
- Shailabh Tewari
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi, India
| | - Mohammad Adnan
- Department of Physics, Indian Institute of Technology Delhi, New Delhi, India
| | - Balendra
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi, India
| | - Vineet Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi, India
| | - Gaurav Jangra
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi, India
| | | | - Arunachalam Ramanan
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi, India
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110
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Gumerova NI, Caldera Fraile T, Roller A, Giester G, Pascual-Borràs M, Ohlin CA, Rompel A. Direct Single- and Double-Side Triol-Functionalization of the Mixed Type Anderson Polyoxotungstate [Cr(OH) 3W 6O 21] 6. Inorg Chem 2019; 58:106-113. [PMID: 30543282 PMCID: PMC6325722 DOI: 10.1021/acs.inorgchem.8b01740] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Indexed: 11/30/2022]
Abstract
Since the first successful triol-functionalization of the Anderson polyoxometalates, the six protons of their central octahedron X(OH)6 (X-heteroatom, p- or d-element) have been considered as a prerequisite for their functionalization with tripodal alcohols, and therefore, the functionalization of Anderson structures from the unprotonated sides have never been reported. Here, we describe the triol-functionalization of [Cr(OH)3W6O21]6- leading to the single-side grafted anions [Cr(OCH2)3CRW6O21]6- (CrW6-tris-R, R = -C2H5, -NH2, -CH2OH) and the unprecedented double-side functionalized anion [Cr((OCH2)3CC2H5)2W6O18]3- (CrW6-(tris-C2H5)2), despite the lack of protons in the parent anion in the solid state. CrW6-(tris-C2H5)2 demonstrates the first example of double-side functionalized Anderson POT with the partially one-side protonated corresponding parent anion. The new heteropolytungstates were characterized by single-crystal X-ray diffraction, elemental analysis, Fourier-transform infrared spectroscopy, thermal gravimetric analysis, cyclic voltammetry, and electrospray ionization mass spectrometry. Density functional theory calculations were performed to investigate and compare the stability among the different isomers of the parent anion [Cr(OH)3W6O21]6-.
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Affiliation(s)
- Nadiia I. Gumerova
- Fakultät
für Chemie, Institut für Biophysikalische Chemie and Fakultät
für Geowissenschaften, Geographie und Astronomie, Institut
für Mineralogie und Kristallographie, Universität Wien, 1090 Wien, Austria
| | - Tania Caldera Fraile
- Fakultät
für Chemie, Institut für Biophysikalische Chemie and Fakultät
für Geowissenschaften, Geographie und Astronomie, Institut
für Mineralogie und Kristallographie, Universität Wien, 1090 Wien, Austria
| | - Alexander Roller
- Fakultät
für Chemie, Universität Wien, Zentrum für Röntgenstrukturanalyse, 1090 Wien, Austria
| | - Gerald Giester
- Fakultät
für Chemie, Institut für Biophysikalische Chemie and Fakultät
für Geowissenschaften, Geographie und Astronomie, Institut
für Mineralogie und Kristallographie, Universität Wien, 1090 Wien, Austria
| | | | - C. André Ohlin
- Department of Chemistry, Umeå University, 901 87 Umeå, Sweden
| | - Annette Rompel
- Fakultät
für Chemie, Institut für Biophysikalische Chemie and Fakultät
für Geowissenschaften, Geographie und Astronomie, Institut
für Mineralogie und Kristallographie, Universität Wien, 1090 Wien, Austria
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111
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Synthesis and structure of Anderson cluster based organic–inorganic hybrid solid,
$$[\{\hbox {Cu}(2\hbox {-}pzc)(\hbox {H}_{2}\hbox {O})_{2}\}_{2}\{\hbox {H}_{7}\hbox {AlMo}_{6}\hbox {O}_{24}\}]\cdot 17\hbox {H}_{2}\hbox {O}$$
[
{
Cu
(
2
-
p
z
c
)
(
H
2
O
)
2
}
2
{
H
7
AlMo
6
O
24
}
]
·
17
H
2
O
and its dye adsorption properties. J CHEM SCI 2019. [DOI: 10.1007/s12039-018-1583-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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112
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Fang Q, Fu J, Wang F, Qin Z, Ma W, Zhang J, Li G. Tris functionalized Cu-centered cyclohexamolybdate molecular armor as a bimetallic catalyst for rapid p-nitrophenol hydrogenation. NEW J CHEM 2019. [DOI: 10.1039/c8nj04265a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An organic ligand triol protected and inorganic-ligand cyclohexamolybdate ring supported single atom Cu molecular hybrid material for rapid p-nitrophenol hydrogenation.
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Affiliation(s)
- Qihua Fang
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center
- Changzhou University
- Changzhou 213164
- P. R. China
- Gold Catalysis Research Center, State Key Laboratory of Catalysis
| | - Junhong Fu
- Gold Catalysis Research Center, State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Fei Wang
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Zhaoxian Qin
- Gold Catalysis Research Center, State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Weiguang Ma
- Gold Catalysis Research Center, State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Jiangwei Zhang
- Gold Catalysis Research Center, State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Gao Li
- Gold Catalysis Research Center, State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
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113
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Zhang J, Huang Y, Li G, Wei Y. Recent advances in alkoxylation chemistry of polyoxometalates: From synthetic strategies, structural overviews to functional applications. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2017.10.025] [Citation(s) in RCA: 163] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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114
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Guan W, Wang G, Ding J, Li B, Wu L. A supramolecular approach of modified polyoxometalate polymerization and visualization of a single polymer chain. Chem Commun (Camb) 2019; 55:10788-10791. [DOI: 10.1039/c9cc05056f] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Photo-polymerization based on pre-assembly of anthracene-grafted polyoxometalate through host–guest inclusion of cyclodextrins is realized and a single polymer chain is visualized.
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Affiliation(s)
- Weiming Guan
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Gengxin Wang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Jingbo Ding
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Bao Li
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Lixin Wu
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
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115
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Lu J, He P, Niu J, Wang J. Polyoxometalate-supported metal carbonyl derivatives: from synthetic strategies to structural diversity and applications. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00832b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This review aims to give an overview of the POM-supported metal carbonyl complexes obtained so far, focusing on their structural diversity and potential photochemical and catalytic properties.
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Affiliation(s)
- Jingkun Lu
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Peipei He
- 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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116
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Dianat S, Hatefi-Mehrjardi A, Mahmoodzadeh K. Electrochemical behavior of inorganic–organic hybrid polyoxometalate ((Cys)3[PW12O40]) nanostructure self-assembled monolayer on polycrystalline gold electrode surfaces. NEW J CHEM 2019. [DOI: 10.1039/c8nj05721d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synergistic effect of HPW and Cys enhanced electrochemical activity of Au-(Cys)PW electrode.
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Affiliation(s)
- Somayeh Dianat
- Department of Chemistry, Faculty of Sciences, University of Hormozgan
- Bandar Abbas 71961
- Iran
| | - Abdolhamid Hatefi-Mehrjardi
- Department of Chemistry, Payame Noor University (PNU)
- Tehran
- Iran
- Department of Chemistry & Nanoscience and Nanotechnology Research Laboratory (NNRL), Sirjan Payame Noor University
- Sirjan
| | - Kourosh Mahmoodzadeh
- Department of Chemistry, Payame Noor University (PNU)
- Tehran
- Iran
- Department of Chemistry & Nanoscience and Nanotechnology Research Laboratory (NNRL), Sirjan Payame Noor University
- Sirjan
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117
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Ok KM. Functional layered materials with heavy metal lone pair cations, Pb2+, Bi3+, and Te4+. Chem Commun (Camb) 2019; 55:12737-12748. [DOI: 10.1039/c9cc06778g] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Syntheses, structures, representative properties, and the structure–property relationships for a series of functional layered materials are presented.
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Affiliation(s)
- Kang Min Ok
- Department of Chemistry
- Sogang University
- Mapo-gu
- Republic of Korea
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118
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Bismuth(III)‐Containing Heteropolytungstates [Bi(XW
11
O
39
)
2
]
n
–
(X = Si, Ge,
n
= 13; X = P,
n
= 11) and [Bi(P
2
W
17
O
61
)
2
]
17–. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201801391] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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119
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Vandebroek L, Mampaey Y, Antonyuk S, Van Meervelt L, Parac-Vogt TN. Noncovalent Complexes Formed between Metal-Substituted Polyoxometalates and Hen Egg White Lysozyme. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201801113] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Laurens Vandebroek
- Department of Chemistry; KU Leuven; Celestijnenlaan 200F box 2404 3001 Heverlee (Leuven) Belgium
| | - Yentl Mampaey
- Department of Chemistry; KU Leuven; Celestijnenlaan 200F box 2404 3001 Heverlee (Leuven) Belgium
| | - Svetlana Antonyuk
- Institute of Integrative Biology; University of Liverpool; Life Sciences Building, Crown Street L69 7ZB Liverpool UK
| | - Luc Van Meervelt
- Department of Chemistry; KU Leuven; Celestijnenlaan 200F box 2404 3001 Heverlee (Leuven) Belgium
| | - Tatjana N. Parac-Vogt
- Department of Chemistry; KU Leuven; Celestijnenlaan 200F box 2404 3001 Heverlee (Leuven) Belgium
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120
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Kibler AJ, Newton GN. Tuning the electronic structure of organic–inorganic hybrid polyoxometalates: The crucial role of the covalent linkage. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.06.027] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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121
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Channel Structure Formed by Hydrogen Bonds and Filled by Water Molecules and Dodecatungstosilicate Anions. J CLUST SCI 2018. [DOI: 10.1007/s10876-018-1420-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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122
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Synthesis, structure and antitumor studies of a novel decavanadate complex with a wavelike two-dimensional network. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.08.052] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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123
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Gumerova NI, Blazevic A, Caldera Fraile T, Roller A, Giester G, Rompel A. Synthesis and characterization of hybrid Anderson hexamolybdoaluminates(III) functionalized with indometacin or cinnamic acid. Acta Crystallogr C Struct Chem 2018; 74:1378-1383. [PMID: 30398191 PMCID: PMC6218885 DOI: 10.1107/s2053229618012536] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 09/05/2018] [Indexed: 11/17/2022] Open
Abstract
The single-side Al-centred tris-functionalized hybrid organic-inorganic Anderson polyoxomolybdates (C16H36N)3[Al(OH)3Mo6O18(OCH2)3CNH(C10H8O)]·C9H7N·4CH3OH·5H2O (AlMo6-NH-Cin; Cin is cinnamic acid, C10H9O2) and (C16H36N)3[Al(OH)3Mo6O18(OCH2)3CNH(C19H15ClNO3)]·9H2O (AlMo6-NH-Indo; Indo is indometacin, C19H16ClNO4) have been prepared in a mild three-step synthesis and structurally characterized by single-crystal X-ray diffraction, 1H NMR and IR spectroscopies and elemental analysis. Both AlMo6-NH-Cin and AlMo6-NH-Indo crystallize in the orthorhombic space group Pbca. The antibacterial activities of AlMo6-NH-Cin and AlMo6-NH-Indo against the Gram-negative human mucosal pathogen Moraxella catarrhalis were investigated by determination of the minimum inhibitory concentration, which is 32 µg ml-1 for AlMo6-NH-Cin and 256 µg ml-1 for AlMo6-NH-Indo.
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Affiliation(s)
- Nadiia I. Gumerova
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstrasse 14, Wien 1090, Austria
| | - Amir Blazevic
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstrasse 14, Wien 1090, Austria
| | - Tania Caldera Fraile
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstrasse 14, Wien 1090, Austria
| | - Alexander Roller
- Universität Wien, Facultät für Chemie, Zentrum für Röntgenstrukturanalyse, Währinger Strasse 42, Wien 1090, Austria
| | - Gerald Giester
- Universität Wien, Institut für Mineralogie und Kristallographie, Althanstrasse 14, Wien 1090, Austria
| | - Annette Rompel
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstrasse 14, Wien 1090, Austria
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Vandebroek L, Van Meervelt L, Parac-Vogt TN. Direct observation of the ZrIV interaction with the carboxamide bond in a noncovalent complex between Hen Egg White Lysozyme and a Zr-substituted Keggin polyoxometalate. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2018; 74:1348-1354. [DOI: 10.1107/s2053229618010690] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 07/24/2018] [Indexed: 11/11/2022]
Abstract
The successful cocrystallization of the noncovalent complex formed between (Et2NH2)8[{α-PW11O39Zr-(μ-OH)(H2O)}2]·7H2O Keggin polyoxometalate (2) and Hen Egg White Lysozyme (HEWL) protein is reported. The resulting structural model revealed interaction between monomeric [Zr(PW11O39)]4−(1), which is a postulated catalytically active species, and the protein in two positions in the asymmetric unit. The first position (occupancy 36%) confirms the previously observed binding sites on the protein surface, whereas the second position (occupancy 14%) provides novel insights into the hydrolytic mechanisms of ZrIV-substituted polyoxometalates. The new interaction site occurs at the Asn65 residue, which is directly next to the Asp66–Gly67 peptide bond that was identified recently as a cleavage site in the polyoxometalate-catalysed hydrolysis of HEWL. Furthermore, in this newly discovered binding site, the monomeric polyoxometalate 1 is observed to bind directly to the side chain of the Asn65 residue. This binding of ZrIV as a Lewis-acid metal to the carbonyl O atom of the Asn65 side chain is very similar to the intermediate state proposed in density functional theory (DFT) studies in which ZrIV activates the peptide bond via interaction with its carbonyl O atom, and can be thus regarded as a model for interaction between ZrIV and a peptide bond.
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125
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Bijelic A, Aureliano M, Rompel A. Im Kampf gegen Krebs: Polyoxometallate als nächste Generation metallhaltiger Medikamente. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803868] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Aleksandar Bijelic
- Universität WienFakultät für ChemieInstitut für Biophysikalische Chemie Althanstraße 14 1090 Wien Österreich
| | - Manuel Aureliano
- Universidade do AlgarveFaculdade de Ciências e Tecnologia (FCT), CCMar 8005-139 Faro Portugal
| | - Annette Rompel
- Universität WienFakultät für ChemieInstitut für Biophysikalische Chemie Althanstraße 14 1090 Wien Österreich
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126
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Zeng X, Gong C, Guo H, Xu H, Zhang J, Xie J. A new phenylthiourea grafted Mn-Anderson polyoxometalate cluster: Synthesis, crystal structure and characterization. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.05.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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127
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Bijelic A, Rompel A. Polyoxometalates: more than a phasing tool in protein crystallography. CHEMTEXTS 2018; 4:10. [PMID: 30596006 PMCID: PMC6294228 DOI: 10.1007/s40828-018-0064-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 08/06/2018] [Indexed: 01/18/2023]
Abstract
Protein crystallography is the most widely used method for determining the molecular structure of proteins and obtaining structural information on protein–ligand complexes at the atomic level. As the structure determines the functions and properties of a protein, crystallography is of immense importance for nearly all research fields related to biochemistry. However, protein crystallography suffers from some major drawbacks, whereby the unpredictability of the crystallization process represents the main bottleneck. Crystallization is still more or less a ‘trial and error’ based procedure, and therefore, very time and resource consuming. Many strategies have been developed in the past decades to improve or enable the crystallization of proteins, whereby the use of so-called additives, which are mostly small molecules that make proteins more amenable to crystallization, is one of the most convenient and successful methods. Most of the commonly used additives are, however, restricted to particular crystallization conditions or groups of proteins. Therefore, a more universal additive addressing a wider range of proteins and being applicable to a broad spectrum of crystallization conditions would represent a significant advance in the field of protein crystallography. In recent years, polyoxometalates (POMs) emerged as a promising group of crystallization additives due to their unique structures and properties. In this regard, the tellurium-centered Anderson–Evans polyoxotungstate [TeW6O24]6− (TEW) showed its high potential as crystallization additive. In this lecture text, the development of POMs as tools in protein crystallography are discussed with a special focus on the so far most successful cluster TEW.
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Affiliation(s)
- Aleksandar Bijelic
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstraße 14, 1090 Vienna, Austria
| | - Annette Rompel
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstraße 14, 1090 Vienna, Austria
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128
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Kibler AJ, Martín C, Cameron JM, Rogalska A, Dupont J, Walsh DA, Newton GN. Physical and Electrochemical Modulation of Polyoxometalate Ionic Liquids via Organic Functionalization. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800578] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Alexander J. Kibler
- GSK Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus NG7 2GA Nottingham UK
| | - Carmen Martín
- GSK Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus NG7 2GA Nottingham UK
| | - Jamie M. Cameron
- GSK Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus NG7 2GA Nottingham UK
| | - Agata Rogalska
- GSK Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus NG7 2GA Nottingham UK
| | - Jairton Dupont
- GSK Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus NG7 2GA Nottingham UK
- UFRGS; Institute of Chemistry; Av. Bento Gonçalves, 9500 91501-970 Porto Alegre Rio Grande do Sul Brazil
| | - Darren A. Walsh
- GSK Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus NG7 2GA Nottingham UK
| | - Graham N. Newton
- GSK Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus NG7 2GA Nottingham UK
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129
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Gumerova NI, Al-Sayed E, Krivosudský L, Čipčić-Paljetak H, Verbanac D, Rompel A. Antibacterial Activity of Polyoxometalates Against Moraxella catarrhalis. Front Chem 2018; 6:336. [PMID: 30155460 PMCID: PMC6102686 DOI: 10.3389/fchem.2018.00336] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 07/19/2018] [Indexed: 01/02/2023] Open
Abstract
The antibacterial activity of 29 different polyoxometalates (POMs) against Moraxella catarrhalis was investigated by determination of the minimum inhibitory concentration (MIC). The Preyssler type polyoxotungstate (POT) [NaP5W30O110]14− demonstrates the highest activity against M. catarrhalis (MIC = 1 μg/ml) among all tested POMs. Moreover, we show that the Dawson type based anions, [P2W18O62]6−, [(P2O7)Mo18O54]4−, [As2Mo18O62]6−, [H3P2W15V3O62]6−, and [AsW18O60]7− are selective on M. catarrhalis (MIC range of 2-8 μg/ml). Among the six tested Keggin type based POTs ([PW12O40]3−, [H2PCoW11O40]5−, [H2CoTiW11O40]6−, [SiW10O36]8−, [SbW9O33]9−, [AsW9O33]9−), only the mono-substituted [H2CoTiW11O40]6− showed MIC value comparable to those of the Dawson type group. Polyoxovanadates (POVs) and Anderson type POMs were inactive against M. catarrhalis within the tested concentration range (1-256 μg/ml). Four Dawson type POMs [P2W18O62]6−, [(P2O7)Mo18O54]4−, [As2Mo18O62]6−, [H3P2W15V3O62]6− and the Preyssler POT [NaP5W30O110]14− showed promising antibacterial activity against M. catarrhalis (MICs < 8 μg/ml) and were therefore tested against three additional bacteria, namely S. aureus, E. faecalis, and E. coli. The most potent antibacterial agent was [NaP5W30O110]14−, exhibiting the lowest MIC values of 16 μg/ml against S. aureus and 8 μg/ml against E. faecalis. The three most active compounds ([NaP5W30O110]14−, [P2W18O62]6−, and [H3P2W15V3O62]6−) show bacteriostatic effects in killing kinetics study against M. catarrhalis. We demonstrate, that POM activity is mainly depending on composition, shape, and size, but in the case of medium-size POTs (charge is more than −12 and number of addenda atoms is not being higher than 22) its activity correlates with the total net charge.
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Affiliation(s)
- Nadiia I Gumerova
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Wien, Austria
| | - Emir Al-Sayed
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Wien, Austria
| | - Lukáš Krivosudský
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Wien, Austria
| | - Hana Čipčić-Paljetak
- Center for Translational and Clinical Research, Croatian Center of Excellence for Reproductive and Regenerative Medicine, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Donatella Verbanac
- Center for Translational and Clinical Research, Croatian Center of Excellence for Reproductive and Regenerative Medicine, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Annette Rompel
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Wien, Austria
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130
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Zhang P, Singh V, Jia J, Zhang D, Ma P, Wang J, Niu J. Organometallic functionalized non-classical polyoxometalates: synthesis, characterization and electrochemical properties. Dalton Trans 2018; 47:9317-9323. [PMID: 29927451 DOI: 10.1039/c8dt01712c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two monomeric non-classical tellurium-containing heteropolymolybdate-supported metal carbonyl derivatives (NH4)5H3{[Te2Mo12(OH)O44][Mn(CO)3]}·18H2O (1) and (NH4)8{[Te2Mo12(OH)O44][Re(CO)3]}·13H2O (2) have been successfully isolated in good yields. Compounds 1 and 2 are the first two examples of metal carbonyl derivatives of heteromolybdate with tellurium as the central atom. These two compounds have been thoroughly characterized by single-crystal X-ray diffraction, elemental analyses, X-ray powder diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, and UV-Vis spectroscopy. The electrochemical catalytic activities of 1 and 2 including cyclic voltammetry and catalytic oxidation of nitrite have also been investigated.
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Affiliation(s)
- Panpan Zhang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China.
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131
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Shang S, Lin Z, Yin A, Yang S, Chi Y, Wang Y, Dong J, Liu B, Zhen N, Hill CL, Hu C. Self-Assembly of Ln(III)-Containing Tungstotellurates(VI): Correlation of Structure and Photoluminescence. Inorg Chem 2018; 57:8831-8840. [DOI: 10.1021/acs.inorgchem.8b00693] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Shuxia Shang
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Zhengguo Lin
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Anxiang Yin
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Song Yang
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Yingnan Chi
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Yin Wang
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Jing Dong
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Bing Liu
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Ni Zhen
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Craig L. Hill
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| | - Changwen Hu
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P.R. China
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132
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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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133
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Zhuang X, Wang W, Hao J. Synthesis of organic-inorganic hybrid compounds and their self-assembled behavior in different solvents. J Colloid Interface Sci 2018; 519:81-87. [DOI: 10.1016/j.jcis.2018.02.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 02/14/2018] [Accepted: 02/14/2018] [Indexed: 10/18/2022]
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134
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Liu H, Zhou B, Zhao C, Zhang D, Wu Q, Li Z. Synthesis and in vitro anticancer properties of a novel neodymium(III) complex containing tungstogermanate and 5-fluorouracil. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1472771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Haibin Liu
- School of Biomedical & Chemical Engineering, Liaoning Institute of Science and Technology, Benxi, China
| | - Baoyang Zhou
- School of Biomedical & Chemical Engineering, Liaoning Institute of Science and Technology, Benxi, China
| | - Ce Zhao
- School of Biomedical & Chemical Engineering, Liaoning Institute of Science and Technology, Benxi, China
| | - Danfeng Zhang
- School of Biomedical & Chemical Engineering, Liaoning Institute of Science and Technology, Benxi, China
| | - Qingyin Wu
- School of Biomedical & Chemical Engineering, Liaoning Institute of Science and Technology, Benxi, China
| | - Zengqiang Li
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, China
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135
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Cameron JM, Wales DJ, Newton GN. Shining a light on the photo-sensitisation of organic-inorganic hybrid polyoxometalates. Dalton Trans 2018. [PMID: 29517788 DOI: 10.1039/c8dt00400e] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Finding new ways of using visible light (or, more specifically, solar irradiation) to drive commercially significant and/or challenging chemical processes is an ongoing research goal. Polyoxometalates (POMs) are discrete, metal-oxide clusters which are cheap, robust and easily synthesised but can also act as versatile molecular building blocks, allowing for astonishing variety in their structures and properties. In particular, the rich redox chemistry and inherent photo-activity of POMs makes them attractive for use in a variety of photochemical applications, however POMs characteristically only absorb strongly in the UV region. In this perspective, we discuss the various strategies which have been employed in order to sensitise POMs to visible light, with a particular focus on hybrid inorganic-organic POM species. We will discuss the two clear photo-activation mechanisms which have been developed to date and provide an outlook on some of the possible future directions of the field.
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Affiliation(s)
- Jamie M Cameron
- GSK Carbon Neutral Laboratory for Sustainable Chemistry, University of Nottingham, Nottingham, NG7 2GA, UK.
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136
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Han Z, Xin X, Zheng R, Yu H. Influence of Pb element on the catalytic properties of {P 4Mo 6}-polyoxometalate for redox reactions. Dalton Trans 2018; 47:3356-3365. [PMID: 29423472 DOI: 10.1039/c7dt04772j] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To introduce Pb element into the crystal framework of a polyoxoanion, a series of hybrid compounds were synthesized and characterized: (H2bpp)5[PbMn(H2O)2]2H2{Mn[Mo6O12(OH)3(HPO4)3(PO4)]2}2·8H2O (1), (H2bpp)3[PbM(H2O)2]2H6{M[Mo6O12(OH)3(HPO4)3(PO4)]2}2·6H2O (M = Ni (2), Co (3)) and (H2bpp)3[PbCd(H2O)2]2H6{Cd[Mo6O12(OH)3(HPO4)3(PO4)]2}2·4H2O (4) (bpp = 1,3-bis(4-pyridyl)propane). Crystal structures were determined and characterized by IR, TG, XPS and single-crystal X-ray diffraction. Hybrids 1-4 have similar compositions; the inorganic moiety has a high-dimensional polyanionic arrangement formed from bi-metallic {PbM} subunits covalently bridging negative {M(P4Mo)2} clusters; the organic moiety is made up of protonated bpp cations that surround anionic clusters through many complex supramolecular interactions. Experimental results showed that the introduction of Pb can modulate the electrochemical properties of crystal materials, leading to the more reversible redox process of {M(P4Mo6)2}-based hybrids. Hybrids 1-4 were employed as heterogeneous catalysts for redox reactions to evaluate their activity involving the transfer of electrons. It was found that these kinds of hybrids were catalytically active in the reduction reaction of [Fe(CN)6]3- (+S2O32-) → [Fe(CN)6]4-, but were inactive for Cr(vi) (+HCOOH) → Cr(iii) at 25-70 °C. The effect of temperature on the catalytic ability of hybrids was studied, and it was found that 50 °C was the optimal reaction condition for the four compounds to catalyze [Fe(CN)6]3- → [Fe(CN)6]4-. The reduction percentages of Fe(iii) in 270 min were about 95.7% (1), 76.95% (2), 89.39% (3) and 80.8% (4). The well-defined polyanionic structure with tunable structural features might be beneficial for exploring the mechanism of catalytic redox reactions at the molecular level.
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Affiliation(s)
- Zhangang Han
- College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang, 050024, China.
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137
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Boulmier A, Vacher A, Zang D, Yang S, Saad A, Marrot J, Oms O, Mialane P, Ledoux I, Ruhlmann L, Lorcy D, Dolbecq A. Anderson-Type Polyoxometalates Functionalized by Tetrathiafulvalene Groups: Synthesis, Electrochemical Studies, and NLO Properties. Inorg Chem 2018; 57:3742-3752. [DOI: 10.1021/acs.inorgchem.7b02976] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Amandine Boulmier
- Institut Lavoisier de Versailles, UMR 8180, Université de Versailles Saint-Quentin en Yvelines, Université Paris-Saclay, 45 Avenue des Etats-Unis, CEDEX 78035 Versailles, France
| | - Antoine Vacher
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
| | - Dejin Zang
- Institut de Chimie, Laboratoire d’Electrochimie et de Chimie Physique du Corps Solide, UMR CNRS 7177, Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, CEDEX 67081 Strasbourg, France
| | - Shu Yang
- Institut de Chimie, Laboratoire d’Electrochimie et de Chimie Physique du Corps Solide, UMR CNRS 7177, Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, CEDEX 67081 Strasbourg, France
| | - Ali Saad
- Institut Lavoisier de Versailles, UMR 8180, Université de Versailles Saint-Quentin en Yvelines, Université Paris-Saclay, 45 Avenue des Etats-Unis, CEDEX 78035 Versailles, France
| | - Jérôme Marrot
- Institut Lavoisier de Versailles, UMR 8180, Université de Versailles Saint-Quentin en Yvelines, Université Paris-Saclay, 45 Avenue des Etats-Unis, CEDEX 78035 Versailles, France
| | - Olivier Oms
- Institut Lavoisier de Versailles, UMR 8180, Université de Versailles Saint-Quentin en Yvelines, Université Paris-Saclay, 45 Avenue des Etats-Unis, CEDEX 78035 Versailles, France
| | - Pierre Mialane
- Institut Lavoisier de Versailles, UMR 8180, Université de Versailles Saint-Quentin en Yvelines, Université Paris-Saclay, 45 Avenue des Etats-Unis, CEDEX 78035 Versailles, France
| | - Isabelle Ledoux
- ENS Paris Saclay, Laboratoire de Photonique Quantique Moléculaire, UMR ENS CNRS 8537, CentraleSupelec, 61 Avenue du Président Wilson, 94235 Cachan, France
| | - Laurent Ruhlmann
- Institut de Chimie, Laboratoire d’Electrochimie et de Chimie Physique du Corps Solide, UMR CNRS 7177, Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, CEDEX 67081 Strasbourg, France
| | - Dominique Lorcy
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
| | - Anne Dolbecq
- Institut Lavoisier de Versailles, UMR 8180, Université de Versailles Saint-Quentin en Yvelines, Université Paris-Saclay, 45 Avenue des Etats-Unis, CEDEX 78035 Versailles, France
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138
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Wang Y, Kong X, Xu W, Jiang F, Li B, Wu L. Ratio-Controlled Precursors of Anderson–Evans Polyoxometalates: Synthesis, Structural Transformation, and Magnetic and Catalytic Properties of a Series of Triol Ligand-Decorated {M2Mo6} Clusters (M = Cu2+, Co2+, Ni2+, Zn2+). Inorg Chem 2018; 57:3731-3741. [DOI: 10.1021/acs.inorgchem.7b02996] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yang Wang
- Department of Chemistry, School of Food Engineering, Harbin University, Harbin 150086, P. R. China
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139
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Ventura D, Calderan A, Honisch C, Krol S, Serratì S, Bonchio M, Carraro M, Ruzza P. Synthesis and biological activity of anAnderson polyoxometalate bis‐functionalized with aBombesin‐analog peptide. Pept Sci (Hoboken) 2018. [DOI: 10.1002/pep2.24047] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Daniele Ventura
- Department of Chemical SciencesUniversity of Padua, and Institute on Membrane Technology of CNRPadua Italy
| | - Andrea Calderan
- Institute of Biomolecular Chemistry of CNR, Padua UnitPadua Italy
| | - Claudia Honisch
- Institute of Biomolecular Chemistry of CNR, Padua UnitPadua Italy
| | - Silke Krol
- Laboratory of translational NanotechnologyIRCCS Oncologic Institute “Giovanni Paolo II”, Viale O. Flacco 65Bari70124 Italy
- NanoMed lab, Fondazione IRCCS Institute of Neurology “Carlo Besta”, via Amadeo 42Milan20133 Italy
| | - Simona Serratì
- Laboratory of translational NanotechnologyIRCCS Oncologic Institute “Giovanni Paolo II”, Viale O. Flacco 65Bari70124 Italy
| | - Marcella Bonchio
- Department of Chemical SciencesUniversity of Padua, and Institute on Membrane Technology of CNRPadua Italy
| | - Mauro Carraro
- Department of Chemical SciencesUniversity of Padua, and Institute on Membrane Technology of CNRPadua Italy
| | - Paolo Ruzza
- Institute of Biomolecular Chemistry of CNR, Padua UnitPadua Italy
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140
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Gumerova N, Krivosudský L, Fraqueza G, Breibeck J, Al-Sayed E, Tanuhadi E, Bijelic A, Fuentes J, Aureliano M, Rompel A. The P-type ATPase inhibiting potential of polyoxotungstates. Metallomics 2018; 10:287-295. [PMID: 29313547 PMCID: PMC5824666 DOI: 10.1039/c7mt00279c] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 11/30/2017] [Indexed: 02/05/2023]
Abstract
Polyoxometalates (POMs) are transition metal complexes that exhibit a broad diversity of structures and properties rendering them promising for biological purposes. POMs are able to inhibit a series of biologically important enzymes, including phosphatases, and thus are able to affect many biochemical processes. In the present study, we analyzed and compared the inhibitory effects of nine different polyoxotungstates (POTs) on two P-type ATPases, Ca2+-ATPase from skeletal muscle and Na+/K+-ATPase from basal membrane of skin epithelia. For Ca2+-ATPase inhibition, an in vitro study was performed and the strongest inhibitors were determined to be the large heteropolytungstate K9(C2H8N)5[H10Se2W29O103] (Se2W29) and the Dawson-type POT K6[α-P2W18O62] (P2W18) exhibiting IC50 values of 0.3 and 0.6 μM, respectively. Promising results were also shown for the Keggin-based POTs K6H2[CoW11TiO40] (CoW11Ti, IC50 = 4 μM) and Na10[α-SiW9O34] (SiW9, IC50 = 16 μM), K14[As2W19O67(H2O)] (As2W19, IC50 = 28 μM) and the lacunary Dawson K12[α-H2P2W12O48] (P2W12, IC50 = 11 μM), whereas low inhibitory potencies were observed for the isopolytungstate Na12[H4W22O74] (W22, IC50 = 68 μM) and the Anderson-type Na6[TeW6O24] (TeW6, IC50 = 200 μM). Regarding the inhibition of Na+/K+-ATPase activity, for the first time an ex vivo study was conducted using the opercular epithelium of killifish in order to investigate the effects of POTs on the epithelial chloride secretion. Interestingly, 1 μM of the most potent Ca2+-ATPase inhibitor, Se2W29, showed only a minor inhibitory effect (14% inhibition) on Na+/K+-ATPase activity, whereas almost total inhibition (99% inhibition) was achieved using P2W18. The remaining POTs exhibited similar inhibition rates on both ATPases. These results reveal the high potential of some POTs to act as P-type ATPase inhibitors, with Se2W29 showing high selectivity towards Ca2+-ATPase.
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Affiliation(s)
- Nadiia Gumerova
- Universität Wien , Fakultät für Chemie , Institut für Biophysikalische Chemie , Althanstraße. 14 , 1090 Wien , Austria . ; www.bpc.univie.ac.at
| | - Lukáš Krivosudský
- Universität Wien , Fakultät für Chemie , Institut für Biophysikalische Chemie , Althanstraße. 14 , 1090 Wien , Austria . ; www.bpc.univie.ac.at
| | - Gil Fraqueza
- Centre of Marine Sciences , University of Algarve , 8005-139 Faro , Portugal
- Institute of Engineering , University of Algarve , 8005-139 Faro , Portugal
| | - Joscha Breibeck
- Universität Wien , Fakultät für Chemie , Institut für Biophysikalische Chemie , Althanstraße. 14 , 1090 Wien , Austria . ; www.bpc.univie.ac.at
| | - Emir Al-Sayed
- Universität Wien , Fakultät für Chemie , Institut für Biophysikalische Chemie , Althanstraße. 14 , 1090 Wien , Austria . ; www.bpc.univie.ac.at
| | - Elias Tanuhadi
- Universität Wien , Fakultät für Chemie , Institut für Biophysikalische Chemie , Althanstraße. 14 , 1090 Wien , Austria . ; www.bpc.univie.ac.at
| | - Aleksandar Bijelic
- Universität Wien , Fakultät für Chemie , Institut für Biophysikalische Chemie , Althanstraße. 14 , 1090 Wien , Austria . ; www.bpc.univie.ac.at
| | - Juan Fuentes
- Centre of Marine Sciences , University of Algarve , 8005-139 Faro , Portugal
| | - Manuel Aureliano
- Centre of Marine Sciences , University of Algarve , 8005-139 Faro , Portugal
- Faculty of Sciences and Technology , University of Algarve , 8005-139 Faro , Portugal .
| | - Annette Rompel
- Universität Wien , Fakultät für Chemie , Institut für Biophysikalische Chemie , Althanstraße. 14 , 1090 Wien , Austria . ; www.bpc.univie.ac.at
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141
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Yu H, Ru S, Zhai Y, Dai G, Han S, Wei Y. An Efficient Aerobic Oxidation Protocol of Aldehydes to Carboxylic Acids in Water Catalyzed by an Inorganic-Ligand-Supported Copper Catalyst. ChemCatChem 2018. [DOI: 10.1002/cctc.201701599] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Han Yu
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 100 Haiquan Road Shanghai 201418 P.R. China
- Key Lab of Organic Optoelectronics & Molecular Engineering of the Ministry of Education; Department of Chemistry; Tsinghua University; Beijing 100084 P.R. China
- State Key Laboratory of Natural and Biomimetic Drugs; Peking University; Beijing 100191 P.R. China
| | - Shi Ru
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 100 Haiquan Road Shanghai 201418 P.R. China
| | - Yongyan Zhai
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 100 Haiquan Road Shanghai 201418 P.R. China
| | - Guoyong Dai
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 100 Haiquan Road Shanghai 201418 P.R. China
| | - Sheng Han
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 100 Haiquan Road Shanghai 201418 P.R. China
| | - Yongge Wei
- Key Lab of Organic Optoelectronics & Molecular Engineering of the Ministry of Education; Department of Chemistry; Tsinghua University; Beijing 100084 P.R. China
- State Key Laboratory of Natural and Biomimetic Drugs; Peking University; Beijing 100191 P.R. China
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142
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Xin X, Tian X, Zhang H, He X, Zhai X, Han Z. Phosphotungstic salt used as an efficient catalyst to rapidly remove RhB from water solution. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1434517] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Xing Xin
- College of Chemistry & Material Science, Hebei Normal University, Shijiazhuang, China
| | - Xuerui Tian
- College of Chemistry & Material Science, Hebei Normal University, Shijiazhuang, China
| | - Huixia Zhang
- College of Chemistry & Material Science, Hebei Normal University, Shijiazhuang, China
| | - Xueli He
- College of Chemistry & Material Science, Hebei Normal University, Shijiazhuang, China
| | - Xueliang Zhai
- College of Chemistry & Material Science, Hebei Normal University, Shijiazhuang, China
| | - Zhangang Han
- College of Chemistry & Material Science, Hebei Normal University, Shijiazhuang, China
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143
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144
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Li Q, Wei Y. A series of unprecedented triol-stabilized [H 3MW 6O 24] n-: the missing piece between A- and B-type Anderson-Evans polyoxometalates. Chem Commun (Camb) 2018; 54:1375-1378. [PMID: 29354843 DOI: 10.1039/c7cc08976g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Several novel triol-ligands functionalized Anderson-Evans type polyoxotungstates, K3Na3[{HOCH2C(CH2O)3}AlO3W6O18], K3Na3[{HOCH2C(CH2O)3}CrO3W6O18], K3Na3[{HOCH2C(CH2O)3}CoO3W6O18], and K3Na3[{H3CC(CH2O)3}CoO3W6O18], were successfully synthesized and characterized, in which some of the central metal ions have never been found in the Anderson-type polyoxotungstates. The single crystal X-ray diffraction analysis indicated that the clusters were on a status, in which only one-side μ3-O was protonated. This indicates that the three-protonated cluster is a common type of Anderson cluster aside zero-protonated (A-type) and six-protonated (B-type), which could be named as the T-type.
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Affiliation(s)
- Qi Li
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China.
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145
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A survey of the influence of EEDQ on efficient post-functionalization of an Anderson-type polyoxomolybdate towards construction of organic-inorganic hybrids. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2017.11.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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146
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Bijelic A, Aureliano M, Rompel A. The antibacterial activity of polyoxometalates: structures, antibiotic effects and future perspectives. Chem Commun (Camb) 2018; 54:1153-1169. [PMID: 29355262 PMCID: PMC5804480 DOI: 10.1039/c7cc07549a] [Citation(s) in RCA: 229] [Impact Index Per Article: 38.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 01/02/2018] [Indexed: 02/05/2023]
Abstract
Polyoxometalates (POMs) are, mostly anionic, metal oxide compounds that span a wide range of tunable physical and chemical features rendering them very interesting for biological purposes, an continuously emerging but little explored field. Due to their biological and biochemical effects, including antitumor, -viral and -bacterial properties, POMs and POM-based systems are considered as promising future metallodrugs. In this article, we focus on the antibacterial activity of POMs and their therapeutic potential in the battle against bacteria and their increasing resistance against pharmaceuticals. Recent advances in the synthesis of POMs are highlighted, with emphasis on the development and properties of biologically active POM-based hybrid and nanocomposite structures. By analysing the antibacterial activity and structure of POMs, putative mode of actions are provided, including potential targets for POM-protein interactions, and a structure-activity-relationship was established for a series of POMs against two bacteria, namely Helicobacter pylori and Streptococcus pneumoniae.
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Affiliation(s)
- Aleksandar Bijelic
- Universität Wien , Fakultät für Chemie , Institut für Biophysikalische Chemie , Althanstraße 14 , 1090 Wien , Austria . ; http://www.bpc.univie.ac.at
| | - Manuel Aureliano
- CCMar , FCT , Faculdade de Ciências e Tecnologia , Universidade do Algarve , 8000-139 Faro , Portugal
| | - Annette Rompel
- Universität Wien , Fakultät für Chemie , Institut für Biophysikalische Chemie , Althanstraße 14 , 1090 Wien , Austria . ; http://www.bpc.univie.ac.at
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147
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Auvray T, Santoni MP, Hasenknopf B, Hanan GS. Covalent hybrids based on Re(i) tricarbonyl complexes and polypyridine-functionalized polyoxometalate: synthesis, characterization and electronic properties. Dalton Trans 2018; 46:10029-10036. [PMID: 28730194 DOI: 10.1039/c7dt01674c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of [Re(CO)3Br(N^N)] (N^N = substituted 2,2'-bipyridine ligand) complexes based on polypyridine-functionalized Dawson polyoxometalate (1-3) has been synthesized. The new hybrids (4-6) were characterized by various analytical techniques, including absorption, vibrational and luminescence spectroscopies as well as electrochemistry. Both units, the polyoxometalate and the transition metal complex, retain their intrinsic properties. Their combination in the newly prepared hybrids results in improved photosensitization in the high-energy visible region. However, a complete quenching of the emission for the [Re(CO)3Br(N^N)] complexes is observed due to formation of a charge separated state, Re(ii) - POM-, as shown by quenching experiments as well as theoretical modelling via DFT.
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Affiliation(s)
- Thomas Auvray
- Département de Chimie, Université de Montréal, Montréal, Canada H3T-1J4.
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148
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Yang P, Li H, Ma T, Haso F, Liu T, Fan L, Lin Z, Hu C, Kortz U. Rational Design of Organically Functionalized Polyoxopalladates and Their Supramolecular Properties. Chemistry 2018; 24:2466-2473. [PMID: 29205556 DOI: 10.1002/chem.201705303] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Indexed: 11/06/2022]
Abstract
The SrII -centered 12-palladate(II) open-cube {SrPd12 (OAc)3 } has been systematically evolved by substitution of the three acetate ligands by a library of saturated carboxylic acids with increasing chain lengths leading to four novel polyoxopalladates(II) with the formula [SrPd12 O6 (OH)3 (PhAsO3 )6 (L)3 ]4- (SrPd12 L3 , L=Cn H2n+1 COO, n=2 to 5). These first examples of surfactant-type polyoxopalladates with a hydrophilic metal-oxo unit and three hydrophobic alkyl chains were characterized in the solid state (single-crystal XRD, FTIR, TGA), in solution (1 H, 13 C NMR spectroscopy), and in the gas phase (ESI-MS). The two polyanions SrPd12 L3 with chain lengths of 5 and 6 are the first examples of polyoxopalladates that are soluble and stable in organic media. The Na salts of the amphiphilic polyoxopalladates SrPd12 L3 were shown to self-assemble into "blackberry"-type spherical supramolecular structures in dilute solutions, of which an unusual "volcano"-shaped trend of assembly size versus solvent polarity is chiefly influenced by directional hydrogen bonding interactions.
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Affiliation(s)
- Peng Yang
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759, Bremen, Germany
| | - Hui Li
- Department of Polymer Science, The University of Akron, Akron, OH, 44325-3909, USA
| | - Tian Ma
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759, Bremen, Germany
| | - Fadi Haso
- Department of Polymer Science, The University of Akron, Akron, OH, 44325-3909, USA
| | - Tianbo Liu
- Department of Polymer Science, The University of Akron, Akron, OH, 44325-3909, USA
| | - Linyuan Fan
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P.R. China
| | - Zhengguo Lin
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759, Bremen, Germany.,Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P.R. China
| | - Changwen Hu
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P.R. China
| | - Ulrich Kortz
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759, Bremen, Germany
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149
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A Robust Framework Based on Polymeric Octamolybdate Anions and Copper(II) Complexes of Tetradentate N-donor Ligands. CRYSTALS 2018. [DOI: 10.3390/cryst8010020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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150
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Li S, Zhang J, Jia H, Zhang X, Yu Y, Li L, Wu Y, Zhang X. A new (2D+1D) polyoxometalate-based pseudo-rotaxane framework. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.09.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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