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Tkachenko P, Topchiyan P, Berdyugin S, Tkachev S, Maximovskiy E, Sheven D, Vasilchenko D. (Me 4N) 2[Pt(CO 3) 2(OH) 2]: The Isolated Pt IVO 6 Carbonato-Complex. Inorg Chem 2024; 63:12042-12053. [PMID: 38946343 DOI: 10.1021/acs.inorgchem.4c00909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
The first fully inorganic Pt(IV) carbonato-complex trans-[Pt(CO3)2(OH)2]2- with a {PtO6} coordination sphere was isolated as the (Me4N)2[Pt(CO3)2(OH)2] (1) salt. The compound 1 was characterized using single-crystal and powder X-ray diffraction, Raman spectroscopy, infrared spectroscopy (FTIR), electrospray ionization mass spectrometry (ESI-MS), nuclear magnetic resonance spectroscopy (NMR), and thermogravimetric analysis (TG). Density functional theory (DFT) calculations were also performed to analyze the spectral features of the complex. 1 crystallizes in the triclinic system (P-1) with a Z of 1. The trans-[Pt(CO3)2(OH)2]2- anion has axial hydroxo ligands and κ2-CO3 ligands, which form an equatorial plane. This anionic complex exhibits notable stability in aqueous solutions, while the axial hydroxo ligand can be readily modified, as exemplified by the acylation of the trans-[Pt(CO3)2(OH)2]2- into trans-[Pt(CO3)2(OAc)2]2- anion. Furthermore, it has been shown that rigid and glittering platinum coatings can be electrochemically deposited from an aqueous solution of 1 without the addition of surfactants.
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Affiliation(s)
- Pavel Tkachenko
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia
| | - Polina Topchiyan
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia
| | - Semen Berdyugin
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia
| | - Sergey Tkachev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia
| | - Eugene Maximovskiy
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia
| | - Dmitiy Sheven
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia
| | - Danila Vasilchenko
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia
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Nyman M, Rahman T, Colliard I. Decaniobate: The Fruit Fly of Niobium Polyoxometalate Chemistry. Acc Chem Res 2023; 56:3616-3625. [PMID: 38015808 DOI: 10.1021/acs.accounts.3c00583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
ConspectusPolyoxometalates (POMs, metals = V4/5+, Nb5+, Ta5+, Mo5/6+, and W5/6+) can be described as molecular metal oxides. The V, Mo, and W-POMs (classic POMs) exhibit rich structural diversity with interesting redox properties, acid catalysis, inorganic ligands, and colorimetric properties and behavior. Nb and Ta POMs, while structurally similar, are generally stable only in base and redox behavior is rare, and they are synthetically far less accessible. The V, Mo, and W-POMs have been studied for well over a century, Nb-POM chemistry has emerged in the last 20 years, and Ta-POM chemistry is yet to see consistent and significant advances. Early and current success in Nb-POM chemistry is owed mainly to hydrothermal synthesis, which is wholly unsatisfying, given the black box nature of this technique.For the last 5 years and as summarized in this Account, we have exploited decaniobate, [Nb10O28]6- (Nb10), as a foundation to perform room-temperature, nearly pH-neutral manipulations of Nb-POM solutions. Nb10, with a rare neutral self-buffering pH, responds to any interactions with electrolytes (specifically oxoanions and metal cations) by undergoing transformations, leading to new topologies. The ease of Nb10 transformation yielding new generations of Nb-POMs, akin to an inorganic analogue of biological model organisms such as the fruit fly, inspired the title of this Account. The common building unit born from the disassembly of Nb10 is [Nb7O20(OH, H2O)2](5-7)-, and the hydroxyl/aqua ligands provide reactivity for linking via condensation reactions, ligand exchange, heterometals, or oxoanions. We can coax these newly assembled Nb-POMs (detected by small-angle X-ray scattering, SAXS) to crystallize via the usual methods of vapor diffusion, salting out, and reduced temperature, and the single-crystal X-ray diffraction structures are valuable for understanding reaction mechanisms to fine-tune control and yield a landscape of topologies and compositions. Beyond providing an opportunity to comprehend and diversify POM chemistry, the reactivity of Nb10 yields highly soluble (i.e., >2 M Nb), nearly neutral aqueous solutions of niobium, ideal for the solution-phase deposition of thin films, demonstrated with LiNbO3, (Na,K)NbO3, Nb2O5, and heterometal-doped Nb2O5. The obtained films are cohesive and smooth, enabled by the tendency of these solutions to gel if simply evaporated quickly.Per our current endeavors, this gelation behavior provides an opportunity to develop new soft, flexible materials including inorganic networks, organic-inorganic networks, and porous solids and explore their material properties including base catalysis and sorption (i.e., CO2). Nb-POM (and Ta-POM) discovery and implementation of properties is far from complete. While heterometal (d and f element) substitution is easy with classic POMs, imparting a whole host of functions (tuned luminescence, catalysis, electroactivity, etc.), it remains a challenge with Nb-POMs due to pH incompatibility with most heterometals. This grand challenge that defies fundamental aqueous behavior of metal cations requires the creation of liquid mixtures that include polymer and/or ionic liquid components, and the creation of such reaction media can impact synthesis beyond POM chemistry. The goal of this Account is to describe the recent advances in Nb-POM chemistry, afforded by the Nb10 "fruit fly", and to also provide insight into the next large steps needed to advance Nb-POM chemistry.
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Affiliation(s)
- May Nyman
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Tasnim Rahman
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Ian Colliard
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
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3
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Zhang J, Bhattacharya S, Nisar T, Wagner V, Kortz U. Discrete Platinum(II/IV)-Arsenito Clusters with Pt-As and Pt-O Bonding: [Pt IV(As 3O 6) 2] 2-, [Pt 4II(H 2AsO 3) 6(HAsO 3) 2] 2-, and [Pt 2IIAs 6W 4O 28] 10. Inorg Chem 2023; 62:19603-19611. [PMID: 37971601 DOI: 10.1021/acs.inorgchem.3c02967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
The first two discrete, fully inorganic platinum(II/IV)-arsenito clusters, [fac-PtIV(As3O6)2]2- (PtAs6) and [Pt4II(H2AsO3)6(HAsO3)2]2- (Pt4As8), as well as the platinum(II)-arsenito heteropolytungstate [Pt2IIAs6W4O28]10- (Pt2As6W4), have been synthesized in aqueous media using simple one-pot reaction conditions. In PtAs6, a PtIV ion is coordinated to two cyclic, tridentate As3O6 units via oxo-donation (PtIV-O ∼ 2.02 Å). In Pt4As8, each PtII ion is coordinated to four AsO3 ligands via two oxygens and two AsIII atoms in a square-planar fashion (PtII-AsIII 2.31 Å, PtII-O 2.07 Å), resulting in an open cage-like structure, which forms a strong tetrameric assembly in the solid state mediated by two K+ counterions. In Pt2As6W4, each PtII ion is coordinated by the As atoms of three AsO3 ligands (PtII-AsIII 2.38 Å) and an oxo group (PtII-O 2.07 Å) in addition to bridging two tungsten ions, and this polyanion was characterized in solution by 195Pt NMR.
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Affiliation(s)
- Jiayao Zhang
- School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany
| | - Saurav Bhattacharya
- School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany
- Department of Chemistry, BITS Pilani K. K. Birla Goa Campus, Zuarinagar 403726, Goa, India
| | - Talha Nisar
- School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany
| | - Veit Wagner
- School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany
| | - Ulrich Kortz
- School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany
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4
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Zhang J, Bhattacharya S, Khsara BE, Nisar T, Müller AB, Besora M, Poblet JM, Wagner V, Kuhnert N, Kortz U. Pt IV-Containing Hexaplatinate(II) [Pt IVPt II6O 6(AsO 2(CH 3) 2) 6] 2- and Hexapalladate(II) [Pt IVPd II6O 6(AsO 2(CH 3) 2) 6] 2. Inorg Chem 2023; 62:13184-13194. [PMID: 37440284 DOI: 10.1021/acs.inorgchem.3c00832] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
The first PtIV-containing discrete polyoxoplatinate(II) [PtIVPtII6O6(AsO2(CH3)2)6]2- (Pt7) and polyoxopalladate(II) [PtIVPdII6O6(AsO2(CH3)2)6]2- (PtPd6) have been prepared and characterized in the solid state, in solution, and in the gas phase. The molecular structures of the noble metal-oxo clusters Pt7 and PtPd6 comprise a central, octahedral PtIVO6 hetero group surrounded by six square-planar MO4 (M = PtII, PdII) units, which are capped by six dimethylarsinate ligands. The polyanions were prepared under simple one-pot aqueous solution conditions by reacting H2Pt(OH)6 with either K2PtCl4 or Pd(NO3)2 in sodium dimethylarsinate buffer (pH 7) at 80 °C. Catalytic studies were performed on Pt7 supported on SBA15-apts for o-xylene hydrogenation at 300 °C and 90 bar H2 pressure and indicated excellent activity and recyclability with low activation temperature.
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Affiliation(s)
- Jiayao Zhang
- School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany
| | - Saurav Bhattacharya
- School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany
- Department of Chemistry, BITS Pilani K. K. Birla Goa Campus, K. K. Birla Goa Campus, 403726 Goa, India
| | - Bahaa E Khsara
- School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany
| | - Talha Nisar
- School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany
| | - Anja B Müller
- School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany
| | - Maria Besora
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, 43007 Tarragona, Spain
| | - Josep M Poblet
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, 43007 Tarragona, Spain
| | - Veit Wagner
- School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany
| | - Nikolai Kuhnert
- School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany
| | - Ulrich Kortz
- School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany
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5
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Zhang J, Bhattacharya S, Müller AB, Kiss L, Silvestru C, Kuhnert N, Kortz U. Mixed noble metal-oxo clusters: platinum(IV)-gold(III) oxoanion [Pt IV2Au III3O 6((CH 3) 2AsO 2) 6] . Chem Commun (Camb) 2023; 59:5918-5921. [PMID: 37171021 DOI: 10.1039/d3cc00243h] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The first discrete mixed platinum(IV)-gold(III) oxoanion [PtIV2AuIII3O6((CH3)2AsO2)6]- (1) was synthesized by reaction of H2Pt(OH)6 with H[AuCl4] in a simple one-pot procedure in aqueous solution at pH 7 and comprises two equivalent PtIVO6(As(CH3)2)3 units which are linked by three square-planar AuIIIO4 units. Polyanion 1 could be isolated as a potassium or sodium salt in good yield, which were structurally characterized in the solid state by single-crystal XRD and TGA, and in solution by multinuclear (1H, 13C, 195Pt) NMR, indicating that polyanion 1 is stable in solution, which was confirmed by ESI-MS studies. The sodium salt of 1 undergoes a clean single-crystal-to-single-crystal (SCSC) structural transformation upon rehydration and dehydration.
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Affiliation(s)
- Jiayao Zhang
- School of Science, Constructor University (formerly Jacobs University), Campus Ring 1, 28759 Bremen, Germany.
| | - Saurav Bhattacharya
- School of Science, Constructor University (formerly Jacobs University), Campus Ring 1, 28759 Bremen, Germany.
- Department of Chemistry, BITS Pilani K. K. Birla Goa Campus, 403726 Goa, India
| | - Anja B Müller
- School of Science, Constructor University (formerly Jacobs University), Campus Ring 1, 28759 Bremen, Germany.
| | - Levente Kiss
- Department of Chemistry, Supramolecular Organic and Organometallic Chemistry Centre (SOOMCC), Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, 400028 Cluj-Napoca, Romania
| | - Cristian Silvestru
- Department of Chemistry, Supramolecular Organic and Organometallic Chemistry Centre (SOOMCC), Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, 400028 Cluj-Napoca, Romania
| | - Nikolai Kuhnert
- School of Science, Constructor University (formerly Jacobs University), Campus Ring 1, 28759 Bremen, Germany.
| | - Ulrich Kortz
- School of Science, Constructor University (formerly Jacobs University), Campus Ring 1, 28759 Bremen, Germany.
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6
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Wang YJ, Zhuang GL, Zhang JW, Luo F, Cheng X, Sun FL, Fu SS, Lu TB, Zhang ZM. Co-Dissolved Isostructural Polyoxovanadates to Construct Single-Atom-Site Catalysts for Efficient CO 2 Photoreduction. Angew Chem Int Ed Engl 2023; 62:e202216592. [PMID: 36478491 DOI: 10.1002/anie.202216592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/06/2022] [Accepted: 12/06/2022] [Indexed: 12/12/2022]
Abstract
We explored a co-dissolved strategy to embed mono-dispersed Pt center into V2 O5 support via dissolving [PtV9 O28 ]7- into [V10 O28 ]6- aqueous solution. The uniform dispersion of [PtV9 O28 ]7- in [V10 O28 ]6- solution allows [PtV9 O28 ]7- to be surrounded by [V10 O28 ]6- clusters via a freeze-drying process. The V centers in both [PtV9 O28 ]7- and [V10 O28 ]6- were converted into V2 O5 via a calcination process to stabilize Pt center. These double separations can effectively prevent the Pt center agglomeration during the high-temperature conversion process, and achieve 100 % utilization of Pt in [PtV9 O28 ]7- . The resulting Pt-V2 O5 single-atom-site catalysts exhibit a CH4 yield of 247.6 μmol g-1 h-1 , 25 times higher than that of Pt nanoparticle on the V2 O5 support, which was accompanied by the lactic acid photooxidation to form pyruvic acid. Systematical investigations on this unambiguous structure demonstrate an important role of Pt-O atomic pair synergy for highly efficient CO2 photoreduction.
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Affiliation(s)
- Yu-Jie Wang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Northeast Normal University, Jilin, 130024, China.,Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Gui-Lin Zhuang
- Institute of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Jiang-Wei Zhang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
| | - Fang Luo
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Northeast Normal University, Jilin, 130024, China
| | - Xin Cheng
- Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Fu-Li Sun
- Institute of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Shan-Shan Fu
- Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Tong-Bu Lu
- Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Zhi-Ming Zhang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Northeast Normal University, Jilin, 130024, China.,Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin, 300384, China
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7
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Rajan A, Elcheikh Mahmoud M, Wang F, Bhattacharya S, Mougharbel AS, Ma X, Müller AB, Nisar T, Taffa DH, Poblet JM, Kuhnert N, Wagner V, Wark M, Kortz U. Discovery of Polythioplatinate(II) [Pt 3S 2(SO 3) 6] 10- and Study of Its Solution and Catalytic Properties. Inorg Chem 2022; 61:11529-11538. [PMID: 35866749 DOI: 10.1021/acs.inorgchem.2c00777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We have discovered the first polythioplatinate(II), [PtII3S2(SO3)6]10- (1), which was synthesized in aqueous basic medium (pH 11) by hydrothermal heating at 150 °C. Polyanion 1 comprises a discrete, triangular assembly of three Pt2+ ions linked by two μ3-sulfido ligands, and their square-planar coordination geometry is completed by two terminal S-bound sulfito ligands. Polyanion 1 was isolated as a hydrated sodium salt, Na10[PtII3(μ3-S)2(SO3)6]·22H2O (Na-1), which was characterized in the solid state by single-crystal X-ray diffraction, Fourier-transform infrared spectroscopy, thermogravimetric analysis, X-ray photoelectron spectra, and elemental analysis, in solution by 195Pt NMR and atomic absorption spectroscopy, and in the gas phase by electrospray ionization mass spectrometry. Density functional theory calculations were performed, and the 195Pt NMR chemical shifts of 1 were computed theoretically and shown to match well with the experimental data. Furthermore, the discrete title polyanion 1 was immobilized on mesoporous SBA-15 support and used as a precatalyst for the hydrogenation of o-xylene.
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Affiliation(s)
- Ananthu Rajan
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
| | - Mahmoud Elcheikh Mahmoud
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
| | - Fei Wang
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo 1, 43007 Tarragona, Spain
| | - Saurav Bhattacharya
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
| | - Ali S Mougharbel
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
| | - Xiang Ma
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
| | - Anja B Müller
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
| | - Talha Nisar
- Department of Physics and Earth Sciences, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
| | - Dereje H Taffa
- Institute of Chemistry, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
| | - Josep M Poblet
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo 1, 43007 Tarragona, Spain
| | - Nikolai Kuhnert
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
| | - Veit Wagner
- Department of Physics and Earth Sciences, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
| | - Michael Wark
- Institute of Chemistry, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
| | - Ulrich Kortz
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
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8
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Vasilchenko D, Berdyugin S, Komarov V, Sheven D, Kolesov B, Filatov E, Tkachev S. Hydrolysis of [PtCl 6] 2- in Concentrated NaOH Solutions. Inorg Chem 2022; 61:5926-5942. [PMID: 35380806 DOI: 10.1021/acs.inorgchem.2c00414] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The transformations of Pt complex species in concentrated NaOH solutions (1-12 M) of Na2[PtCl6] were studied with a combination of methods, including 195Pt nuclear magnetic resonance, ultraviolet-visible, and Raman spectroscopy. The two-step process was observed under the following conditions: (1) formation of the [Pt(OH)5Cl]2- anion that proceeds relatively fast even at room temperature and (2) further slow substitution of the last chlorido ligand with the formation of the [Pt(OH)6]2- anion. Overall, it was determined that the [PtCl6]2- to [Pt(OH)6]2- transformation (especially the first stage) is greatly accelerated under blue light (455 nm) irradiation. The structures of [Pt(OH)Cl5]2- and [Pt(OH)5Cl]2- were determined using the single-crystal X-ray diffraction data of the corresponding salts isolated for the first time. Analysis of the [Pt(OH)Cl5]2- reactivity showed that under analogous conditions, its hydrolysis proceeds 2 orders of magnitude slower than that of [PtCl6]2-, indicating that the formation of [Pt(OH)5Cl]2- from [PtCl6]2- (stage 1) does not follow a simple sequential substitution pattern. A model for [Pt(OH)5Cl]2- anion formation that includes the competing reaction of direct Cl ligand substitution and the self-catalyzed second-order reaction caused by a redox process is proposed. The influence of Pt speciation in alkaline solutions on the reductive behavior is shown, illustrating its impact on the preparation of Pt nanoparticles.
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Affiliation(s)
- Danila Vasilchenko
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russian Federation
| | - Semen Berdyugin
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russian Federation
| | - Vladislav Komarov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russian Federation
| | - Dmitriy Sheven
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russian Federation
| | - Boris Kolesov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russian Federation
| | - Evgeny Filatov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russian Federation
| | - Sergey Tkachev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russian Federation
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10
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Yang Z, Shang J, Yang Y, Ma P, Niu J, Wang J. Synthesis, structures and stability of three V-substituted polyoxoniobate clusters based on [TeNb 9O 33] 17- units. Dalton Trans 2021; 50:7610-7620. [PMID: 33988637 DOI: 10.1039/d1dt00223f] [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
Three structurally intriguing polyoxoniobates (PONbs) based on the trivacant B-type α-Keggin ion {TeNb9O33}, H4K(CN3H6)2{[Cu4(2,2'-bipy)4(H2O)2][TeNb9V2O37]}·29H2O (1, 2,2'-bipy = 2,2'-bipyridine), H0.5K5Na2.5{[Cu(en)H2O]3[TeNb9V3O39]}·10H2O (2, en = ethylenediamine), and K3Na5{[Cu(1,3-dap)H2O]3[TeNb9V3O39]}·11H2O (3, 1,3-dap = 1,3-diaminopropane), are assembled by the conventional aqueous solution methods using a series of N-containing organic ligands. In 1, each of the two {VO4} units is attached to two coplanar NbO6 octahedra on the {Nb3O13} cluster of the {TeNb9O33} unit. Differently, three {VO4} units in 2 and 3 are linked to two edge-sharing NbO6 octahedra, respectively. Compounds 1-3 represent the first oxo NbTeV clusters and also the first vanadoniobates based on the trivacant Keggin PONb units. All three compounds were characterised by single-crystal X-ray structural analysis, TGA and IR, ESI-MS and 51V NMR spectroscopy. Furthermore, the magnetic properties of compounds 1 and 2 were also studied.
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Affiliation(s)
- Zongfei Yang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Jingjing Shang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Yuanyuan Yang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Pengtao Ma
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Jingyang Niu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Jingping Wang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
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11
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Wan R, Jing Z, Xu Q, Ma X, Ma P, Zhang C, Niu J, Wang J. Lacunary {Se 4V 10} Heteropolyoxovanadate Precursor with Monometal, Metal-Richer-Sandwiched Derivatives {Se 8V 20M} and {Se 8V 20M 3}: Correlations between the Synthesis, Structure, and Catalytic Property. Inorg Chem 2021; 60:2888-2892. [PMID: 33576618 DOI: 10.1021/acs.inorgchem.0c03689] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new family of trinuclear transition-metal (TM)-sandwiched heteropolyoxovanadates (hetero-POVs) [(SeV10O28(SeO3)3M(H2O)3)2(M(H2O)4)]10- (Se8V20M3, where M = Mn2+, Co2+, and Zn2+) were prepared using two feasible approaches: a stepwise assembly strategy atop the POV precursor Se4V10 and a one-pot reaction approach of KVO3, SeO2, TM2+, and a proline ligand. The crystallographic studies reveal that Se8V20M3 consist of two asymmetric [SeV10O28(SeO3)3M(H2O)3)]6- units, linked by another TM2+ ion, thus forming an interesting staggered sandwich-type arrangement. Additionally, Se8V20M3 and Se8V20M present strong correlations between their structures and catalytic properties. In particular, Se8V20M3 demonstrate an analogical heterogeneous catalytic performance as Se8V20M in the sulfoxidation reaction of thioethers owing to their structural similarities.
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Affiliation(s)
| | | | | | | | | | | | | | - Jingping Wang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
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12
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Kostenkova K, Arhouma Z, Postal K, Rajan A, Kortz U, Nunes GG, Crick DC, Crans DC. Pt IV- or Mo VI-substituted decavanadates inhibit the growth of Mycobacterium smegmatis. J Inorg Biochem 2021; 217:111356. [PMID: 33582396 DOI: 10.1016/j.jinorgbio.2021.111356] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/07/2021] [Accepted: 01/12/2021] [Indexed: 10/22/2022]
Abstract
Inhibitory effects of two monosubstituted decavanadates by PtIV in monoplatino(IV)nonavanadate(V) ([H2PtIVV9O28]5-, V9Pt), and by MoIV in monomolybdo(VI)nonavanadate(V) ([MoVIV9O28]5-,V9Mo) were investigated against the growth of Mycobacterium smegmatis with the EC50 values of 0.0048 mM and 0.015 mM, respectively. These compare to the reported inhibitory value for decavanadate ([V10O28]6-/[HV10O28]5-, V10) on Mycobacterium smegmatis (EC50 = 0.0037 mM). Time-dependent 51V NMR spectroscopic studies were carried out for all three polyanions in aqueous solution, biological medium (7H9), heated and non-heated supernatant to evaluate their stability in their respective media, monitor their hydrolysis to form various oxovanadates over time and calculate the EC50 values. These studies allow us to calculate adjusted and maximum EC50 for the polyoxovanadate (POV) present in solution at the beginning of the study when there is most intact anion in the media and thus the EC50 values represent the initial effects of the POVs. The results have shown that V10 is 1.3 times more potent than V9Pt and 4 times more potent than V9Mo, indicating that the inhibitory effects of monosubstituted polyanions are related to the V10 structure. We attributed the minor differences in the growth inhibitory effects to the differences in charges (5- vs 6-) of V9Pt and V9Mo compared to V10 and/or the differences in the chemical composition. We concluded that the potency of the growth inhibition by V10 is mainly due to the chemical properties of the vanadium and the decametalate's unique structure even though the presence of the Mycobacterium smegmatis facilitate hydrolysis of the anions. SYNOPSIS: Two decavanadate derivatives, monoplatino(IV)nonavanadate(V) ([H2PtIVV9O28]5-), monomolybdo(VI)nonavanadate(V) ([MoVIV9O28]5-) and decavanadate are more potent growth inhibitors of Mycobacterium smegmatis than monomeric vanadate. The spectroscopic characterization carried out in the growth medium led to the conclusion that both the decavanadate structure and its properties are important for its growth effects.
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Affiliation(s)
- Kateryna Kostenkova
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, United States
| | - Zeyad Arhouma
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, United States; Cell and Molecular Biology Program, Colorado State University, Fort Collins, CO 80523, United States
| | - Kahoana Postal
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, United States; Department of Chemistry, Universidade Federal do Paraná, Curitiba, Paraná, Brazil
| | - Ananthu Rajan
- Department of Life Sciences and Chemistry, Jacobs University, 28759 Bremen, Germany
| | - Ulrich Kortz
- Department of Life Sciences and Chemistry, Jacobs University, 28759 Bremen, Germany
| | - Giovana G Nunes
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, Paraná, Brazil
| | - Dean C Crick
- Cell and Molecular Biology Program, Colorado State University, Fort Collins, CO 80523, United States; Microbiology, Immunology, and Pathology Department, Colorado State University, Fort Collins, CO 80523, United States
| | - Debbie C Crans
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, United States; Cell and Molecular Biology Program, Colorado State University, Fort Collins, CO 80523, United States.
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13
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Shi HY, Zhou WY, Song XM, Jia AQ, Shi HT, Zhang QF. Ruthenium( ii)-supported phosphovanadomolybdates [Ru(dmso) 3PMo 6V 3O 32] 6− and [Ru(PMo 6V 3O 32) 2] 14−, and their use as heterogeneous catalysts for oxidation of alcohols. NEW J CHEM 2021. [DOI: 10.1039/d0nj05752e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Two stable ruthenium(ii)-substituted phosphovanadomolybdates [RuII(dmso)3PMoVI6VV3O32]6− and [RuII(PMoVI6VV3O32)2]14− are synthesized. They could catalyze oxidation of alcohols with good conversion and selectivity.
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Affiliation(s)
- Hao-Yu Shi
- Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology
- Ma’anshan
- P. R. China
| | - Wen-Yan Zhou
- Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology
- Ma’anshan
- P. R. China
| | - Xiao-Ming Song
- Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology
- Ma’anshan
- P. R. China
| | - Ai-Quan Jia
- Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology
- Ma’anshan
- P. R. China
| | - Hua-Tian Shi
- Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology
- Ma’anshan
- P. R. China
| | - Qian-Feng Zhang
- Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology
- Ma’anshan
- P. R. China
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14
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Simms C, Kondinski A, Parac‐Vogt TN. Metal‐Addenda Substitution in Plenary Polyoxometalates and in Their Modular Transition Metal Analogues. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000254] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Charlotte Simms
- Department of Chemistry KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
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15
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Wan R, He P, Liu Z, Ma X, Ma P, Singh V, Zhang C, Niu J, Wang J. A Lacunary Polyoxovanadate Precursor and Transition‐Metal‐Sandwiched Derivatives for Catalytic Oxidation of Sulfides. Chemistry 2020; 26:8760-8766. [DOI: 10.1002/chem.201905741] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Indexed: 01/09/2023]
Affiliation(s)
- Rong Wan
- Henan Key Laboratory of Polyoxometalate ChemistryCollege of Chemistry and Chemical EngineeringHenan University Kaifeng Henan 475004 P. R. China
| | - Peipei He
- Henan Key Laboratory of Polyoxometalate ChemistryCollege of Chemistry and Chemical EngineeringHenan University Kaifeng Henan 475004 P. R. China
| | - Zhen Liu
- Henan Key Laboratory of Polyoxometalate ChemistryCollege of Chemistry and Chemical EngineeringHenan University Kaifeng Henan 475004 P. R. China
| | - Xinyi Ma
- Henan Key Laboratory of Polyoxometalate ChemistryCollege of Chemistry and Chemical EngineeringHenan University Kaifeng Henan 475004 P. R. China
| | - Pengtao Ma
- Henan Key Laboratory of Polyoxometalate ChemistryCollege of Chemistry and Chemical EngineeringHenan University Kaifeng Henan 475004 P. R. China
| | - Vikram Singh
- Henan Key Laboratory of Polyoxometalate ChemistryCollege of Chemistry and Chemical EngineeringHenan University Kaifeng Henan 475004 P. R. China
| | - Chao Zhang
- Henan Key Laboratory of Polyoxometalate ChemistryCollege of Chemistry and Chemical EngineeringHenan University Kaifeng Henan 475004 P. R. China
| | - Jingyang Niu
- Henan Key Laboratory of Polyoxometalate ChemistryCollege of Chemistry and Chemical EngineeringHenan University Kaifeng Henan 475004 P. R. China
| | - Jingping Wang
- Henan Key Laboratory of Polyoxometalate ChemistryCollege of Chemistry and Chemical EngineeringHenan University Kaifeng Henan 475004 P. R. China
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16
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Wu Y, Song M, Chai Z, Wang X. Enhanced photocatalytic activity of Ag/Ag 2Ta 4O 11/g-C 3N 4 under wide-spectrum-light irradiation: H 2 evolution from water reduction without co-catalyst. J Colloid Interface Sci 2019; 550:64-72. [PMID: 31051342 DOI: 10.1016/j.jcis.2019.04.087] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 04/26/2019] [Accepted: 04/29/2019] [Indexed: 01/06/2023]
Abstract
Designing a superior and stable catalyst toward H2 evolution under solar light to solve the energy crisis has attracted wide concern. Herein, we have constructed a novel heterojunction photocatalyst Ag/Ag2Ta4O11/g-C3N4 by in situ assembly, which can efficiently split water to generate H2 by utilizing wide-spectrum-light irradiation. Optimal H2 production reaches highly to 253.03 μmol g-1 h-1 under the simulated solar light. Moreover, the catalyst presented well stability by the retained 98% photocatalytic activity and invariable textural structure after five recycling tests. The mechanism of H2 generation over the prepared material was carefully investigated through scanning electron microscope (SEM), transmission electron microscopy (TEM), UV-Vis absorption spectra (UV-Vis), photoluminescence analysis (PL), X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance spectra (EPR), and several electrochemical measurements. It is proposed that the carriers are efficiently separated through Ag-mediated Z-scheme route in space, retaining their strong redox ability. Ag particles produced by in situ reduction from the component Ag2Ta4O11 could devote to the quick electron migration as the bridge center, effective solar light harvesting due to their surface plasmon resonance, and excellent stability by inhibiting their agglomeration and elution. This research offers a new idea for constructing full solid Z-scheme photocatalysts under wide-spectrum-light irradiation.
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Affiliation(s)
- Yuhang Wu
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia 010021, PR China
| | - Meiting Song
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia 010021, PR China
| | - Zhanli Chai
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia 010021, PR China
| | - Xiaojing Wang
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia 010021, PR China.
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17
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Kato CN, Nagatani S, Mizuno T. Synthesis, Characterization, and Stability of α‐Keggin‐Type Polyoxotungstate‐Coordinated Mono‐Platinum(II) Complex. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201800537] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chika Nozaki Kato
- Department of Chemistry Shizuoka University Ohya, Suruga‐ku 422‐8529 Shizuoka Japan
- Green Chemistry Research Division Research Institute of Green Science and Technology Shizuoka University 836 Ohya, Suruga‐ku 422‐8529 Shizuoka Japan
| | - Shunpei Nagatani
- Department of Chemistry Shizuoka University Ohya, Suruga‐ku 422‐8529 Shizuoka Japan
| | - Takayuki Mizuno
- Department of Chemistry Shizuoka University Ohya, Suruga‐ku 422‐8529 Shizuoka Japan
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18
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Shmakova AA, Shiriyazdanov RR, Karimova AR, Kompankov NB, Abramov PA, Sokolov MN. Decay of Hexaniobate Complexes of Mn(IV) and Pt(IV) in Alkaline Solutions: Some New Hexaniobate Salts. J CLUST SCI 2018. [DOI: 10.1007/s10876-018-1439-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Lippert B, Sanz Miguel PJ. More of a misunderstanding than a real mismatch? Platinum and its affinity for aqua, hydroxido, and oxido ligands. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.03.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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20
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Lin Z, Izarova NV, Kondinski A, Xing X, Haider A, Fan L, Vankova N, Heine T, Keita B, Cao J, Hu C, Kortz U. Platinum-Containing Polyoxometalates:syn-andanti-[PtII2(α-PW11O39)2]10−and Formation of the Metal-Metal-Bonded di-PtIIIDerivatives. Chemistry 2016; 22:5514-9. [DOI: 10.1002/chem.201600555] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Zhengguo Lin
- Department of Life Sciences and Chemistry; Jacobs University; P.O. Box 750 561 28725 Bremen Germany
| | - Natalya V. Izarova
- Department of Life Sciences and Chemistry; Jacobs University; P.O. Box 750 561 28725 Bremen Germany
- Forschungszentrum Jülich; Peter Grünberg Institute; PGI-6 52425 Jülich Germany
- Nikolaev Institute of Inorganic Chemistry; Prospekt Lavrentyeva 3 630090 Novosibirsk Russia
| | - Aleksandar Kondinski
- Department of Physics and Earth Sciences; Jacobs University; P.O. Box 750 561 28725 Bremen Germany
| | - Xiaolin Xing
- Department of Life Sciences and Chemistry; Jacobs University; P.O. Box 750 561 28725 Bremen Germany
| | - Ali Haider
- Department of Life Sciences and Chemistry; Jacobs University; P.O. Box 750 561 28725 Bremen Germany
| | - Linyuan Fan
- Key Laboratory of Cluster Science, Ministry of Education of China; Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry; Beijing Institute of Technology; Beijing 100081 PR China
| | - Nina Vankova
- Department of Physics and Earth Sciences; Jacobs University; P.O. Box 750 561 28725 Bremen Germany
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie; Universität Leipzig; Linnéstr. 2 04103 Leipzig Germany
| | - Thomas Heine
- Department of Physics and Earth Sciences; Jacobs University; P.O. Box 750 561 28725 Bremen Germany
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie; Universität Leipzig; Linnéstr. 2 04103 Leipzig Germany
| | - Bineta Keita
- Université Paris-Sud; Laboratoire de Chimie-Physique; UMR 8000 CNRS 91405 Orsay France
| | - Jie Cao
- Key Laboratory of Cluster Science, Ministry of Education of China; Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry; Beijing Institute of Technology; Beijing 100081 PR China
| | - Changwen Hu
- Key Laboratory of Cluster Science, Ministry of Education of China; Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry; Beijing Institute of Technology; Beijing 100081 PR China
| | - Ulrich Kortz
- Department of Life Sciences and Chemistry; Jacobs University; P.O. Box 750 561 28725 Bremen Germany
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21
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Sánchez-Lombardo I, Baruah B, Alvarez S, Werst KR, Segaline NA, Levinger NE, Crans DC. Size and shape trump charge in interactions of oxovanadates with self-assembled interfaces: application of continuous shape measure analysis to the decavanadate anion. NEW J CHEM 2016. [DOI: 10.1039/c5nj01788b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using 51V NMR spectroscopy, dynamic light scattering and continuous shape analysis to characterize two polyoxometalate-encapsulation in reverse micelles.
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Affiliation(s)
| | - Bharat Baruah
- Department of Chemistry
- Colorado State University
- Colorado 80523-1872
- USA
- Department of Chemistry
| | - Santiago Alvarez
- Departament de Química Inorganica
- Institut de Química Teorica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Katarina R. Werst
- Department of Chemistry
- Colorado State University
- Colorado 80523-1872
- USA
| | | | - Nancy E. Levinger
- Department of Chemistry
- Colorado State University
- Colorado 80523-1872
- USA
| | - Debbie C. Crans
- Department of Chemistry
- Colorado State University
- Colorado 80523-1872
- USA
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22
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Dugar S, Izarova NV, Mal SS, Fu R, Joo HC, Lee U, Dalal NS, Pope MT, Jameson GB, Kortz U. Characterization of PtIV-containing polyoxometalates by high-resolution solid-state 195Pt and 51V NMR spectroscopy. NEW J CHEM 2016. [DOI: 10.1039/c5nj01242b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
High-resolution solid-state 195Pt MAS NMR spectroscopy is a powerful technique for the characterization of PtIV-containing polyoxometalates, as is demonstrated for several examples.
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Affiliation(s)
- Sneha Dugar
- Department of Chemistry and Biochemistry
- Florida State University and National High Magnetic Field Laboratory
- Tallahassee
- USA
| | - Natalya V. Izarova
- Jacobs University
- Department of Life Sciences and Chemistry
- 28725 Bremen
- Germany
| | - Sib Sankar Mal
- Jacobs University
- Department of Life Sciences and Chemistry
- 28725 Bremen
- Germany
| | - Riqiang Fu
- Department of Chemistry and Biochemistry
- Florida State University and National High Magnetic Field Laboratory
- Tallahassee
- USA
| | - Hea-Chung Joo
- Department of Chemistry
- Pukyong National University
- Pusan 608-737
- South Korea
| | - Uk Lee
- Department of Chemistry
- Pukyong National University
- Pusan 608-737
- South Korea
| | - Naresh S. Dalal
- Department of Chemistry and Biochemistry
- Florida State University and National High Magnetic Field Laboratory
- Tallahassee
- USA
| | | | - Geoffrey B. Jameson
- Institute of Fundamental Sciences
- Massey University
- Palmerston North 4442
- New Zealand
| | - Ulrich Kortz
- Jacobs University
- Department of Life Sciences and Chemistry
- 28725 Bremen
- Germany
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23
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Son JH, Casey WH. Two Rh(III)-substituted polyoxoniobates and their base-induced transformation: [H2RhNb9O28](6-) and [Rh2(OH)4Nb10O30](8-). Dalton Trans 2015; 44:20330-3. [PMID: 26571142 DOI: 10.1039/c5dt03797b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two new rhodium-substituted polyoxoniobates, [H2RhNb9O28](6-) (RhNb9) and [Rh2(OH)4Nb10O30](8-) (Rh2Nb10) are reported. The two distinct Rh(III)-substituted niobate clusters behave differently when the pH is raised with TMAOH: the Rh2Nb10 is stable until pH ∼ 12.7, but RhNb9 dissociates to form RhNb5 and RhNb10, similar to some of our other metal-substituted niobates, such as the MNb9 ions (M = Cr or Mn), which transform to MNb10 when the solution pH is raised.
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Affiliation(s)
- Jung-Ho Son
- Department of Chemistry, University of California, Davis, One Shields Ave. Davis, CA 95616, USA.
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24
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Zhou YY, Yao S, Yan JH, Chen L, Wang TT, Wang CJ, Zhang ZM. Design and synthesis of purely inorganic 3D frameworks composed of reduced vanadium clusters and manganese linkers. Dalton Trans 2015; 44:20435-40. [PMID: 26511155 DOI: 10.1039/c5dt03397g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two purely inorganic three-dimensional (3D) frameworks [Mn4(H2O)11V(IV)(18)O42(PO4)](7-) (1) and [Mn2(H2O)7V(IV)(18)O42(PO4)](11-) (2) were synthesized under hydrothermal conditions and fully characterized by single-crystal X-ray structural analysis, IR spectroscopy, thermogravimetric analysis and PXRD. Structural analysis revealed that these two compounds contained a similar all reduced polyoxoanion [V(IV)(18)O42(PO4)](15-) linked by different amounts of manganese centers to form 3D framework materials. The V centers in these two compounds were all reduced to the +IV oxidation state, resulting in an all reduced polyoxoanion, which was firstly used as the building block for constructing 3D framework materials. The all reduced typical polyoxoanion [V(IV)(18)O42(PO4)](15-) with 15 negative charges supplied enough charge amount to accept TM cations. In these two structures, the anions were surrounded by 12 and 5 Mn(2+) ions, respectively, adjusted by varying the feeding amount of MnCl2·4H2O. An electrocatalytic study revealed that compound 1 exhibits electrocatalytic activity for reduction of H2O2.
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Affiliation(s)
- Yang-Yang Zhou
- College of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, Jilin 130022, P.R. China.
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25
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Joo HC, Park KM, Lee U. Double salt crystal structure of hexa-sodium hemiundeca-hydrogen α-hexa-molybdoplatinate(IV) heminona-hydrogen α-hexa-molybdoplatinate(IV) nona-cosa-hydrate: di-hydrogen disordered-mixture double salt. Acta Crystallogr E Crystallogr Commun 2015; 71:1250-4. [PMID: 26594418 PMCID: PMC4647359 DOI: 10.1107/s2056989015017703] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 09/21/2015] [Indexed: 03/25/2024]
Abstract
The title double salt containing two distinct, differently protonated hexa-molybdoplatinate(IV) polyanions, Na6[H5.5 α-PtMo6O24][H4.5 α-PtMo6O24]·29H2O, has been synthesized by a hydro-thermal reaction at ca pH 1.80. The positions of the H atoms in the polyanions were established from difference Fourier maps and confirmed by the inter-polyanion hydrogen bonds, bond-distance elongation, and bond-valence sum (BVS) calculations. The fractional numbers of H atoms in each polyanion are required for charge balance and in order to avoid unrealistically short H⋯H distances in the inter-polyanion hydrogen bonds. Considering the disorder, the refined formula of the title polyanion, {[H5.5 α-PtMo6O24]; polyanion (A) and [H4.5 α-PtMo6O24]; polyanion (B)}(6-), can be rewritten as a set of real formula, viz. {[H6 α-PtMo6O24]; polyanion (A). [H4 α-PtMo6O24]; polyanion (B)}(6-) and {[H5 α-PtMo6O24]; polyanion (A). [H5 α-PtMo6O24]; polyanion (B)}(6-). The polyanion pairs both form dimers of the same formula, viz. {[H10 α-Pt2Mo12O48]}(6-) connected by seven inter-polyanion O-H⋯O hydrogen bonds.
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Affiliation(s)
- Hea-Chung Joo
- Department of Chemistry, Pukyong National University, 599-1 Daeyeon 3-dong, Nam-gu, Busan 608-737, Republic of Korea
| | - Ki-Min Park
- Research Institute of Natural Science, Gyeongsang National University, 501, Jinju-daero, Jinju, 660-701, Republic of Korea
| | - Uk Lee
- Department of Chemistry, Pukyong National University, 599-1 Daeyeon 3-dong, Nam-gu, Busan 608-737, Republic of Korea
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26
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Joo HC, Park KM, Lee U. Double salt crystal structure of nona-sodium dihydrogen nona-vanadoplatinate(IV) tri-hydrogen nona-vanadoplatinate(IV) tetra-contahydrate: stepwise-protonated nona-vanadoplatinate(IV). Acta Crystallogr E Crystallogr Commun 2015; 71:786-90. [PMID: 26279868 PMCID: PMC4518920 DOI: 10.1107/s2056989015010956] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 06/05/2015] [Indexed: 11/25/2022]
Abstract
Nonavanadoplatinate [Pt(IV)V9O28](7-), which is the first heteropolyoxovanadate in the deca-vanadate framework, [V10O28](6-), has been investigated crystallographically. The title compound, Na9[H2Pt(IV)V9O28][H3Pt(IV)V9O28]·40H2O, was obtained by a hydro-thermal reaction at pH = 2. This compound contains two different protonated heteropolyoxovanadates, [H2Pt(IV)V9O28](5-) [polyanion (A)] and [H3Pt(IV)V9O28](7-) [polyanion (B)]. The locations of the H atoms on the protonated O atoms were observed in difference Fourier maps and confirmed by the inter-polyanion hydrogen bonds, bond-length elongation and bond-valence-sum (VBS) analysis. The two (Pt and V)-bound μ2-O atoms are protonated in both polyanions. The position of the third protonated O atom in polyanion (B) is an inter-esting feature of the structure, being located on one (V2)-bound μ2-O atom. The discrete heteropolyanions form a dimer, {H5[PtV9O28]2}(9-), through five inter-polyanion hydrogen bonds. Additional O-H⋯O hydrogen bonds and interactions between Na(+) cations and water molecules as well as terminal O atoms of one of the polyanions consolidate the crystal packing.
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Affiliation(s)
- Hea-Chung Joo
- Department of Chemistry, Pukyong National University, 599-1 Daeyeon 3-dong, Nam-gu, Busan 608-737, Republic of Korea
| | - Ki-Min Park
- Research Institute of Natural Science, Gyeongsan National University, 501, Jinju-daero, Jinju, 660-701, Republic of Korea
| | - Uk Lee
- Department of Chemistry, Pukyong National University, 599-1 Daeyeon 3-dong, Nam-gu, Busan 608-737, Republic of Korea
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Joo HC, Lee U. Crystal structure of penta-potassium di-hydrogen nona-vanadato(V)platinate(IV) nona-hydrate. Acta Crystallogr E Crystallogr Commun 2015; 71:647-9. [PMID: 26090141 PMCID: PMC4459313 DOI: 10.1107/s2056989015009135] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 05/13/2015] [Indexed: 11/29/2022]
Abstract
The title compound, K5[H2PtV9O28]·9H2O, containing the nona-vanado-platinate(IV) polyanion, was obtained by hydro-thermal reaction at pH = 4.2. The polyanion has approximate mm2 (C 2v ) symmetry. The two platinum-bound μ2-O atoms are protonated in the polyanion. The heteropolyanions form inversion-generated dimers, {[H2PtV9O28]2}(10-), held together by μ2-O-H⋯μ2-O and μ2-O-H⋯μ3-O hydrogen bonds. All K(+) cations are located on general positions of the space group P-1.
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Affiliation(s)
- Hea-Chung Joo
- Department of Chemistry, Pukyong National University, 599-1 Daeyeon 3-dong, Nam-gu, Busan 608-737, Republic of Korea
| | - Uk Lee
- Department of Chemistry, Pukyong National University, 599-1 Daeyeon 3-dong, Nam-gu, Busan 608-737, Republic of Korea
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Vasilchenko D, Berdugin S, Tkachev S, Baidina I, Romanenko G, Gerasko O, Korenev S. Polynuclear Hydroxido-Bridged Complexes of Platinum(IV) with Terminal Nitrato Ligands. Inorg Chem 2015; 54:4644-51. [DOI: 10.1021/ic502896s] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Danila Vasilchenko
- Nikolaev
Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russian Federation
- Novosibirsk State University, 630090 Novosibirsk, Russian Federation
| | - Semen Berdugin
- Novosibirsk State University, 630090 Novosibirsk, Russian Federation
| | - Sergey Tkachev
- Nikolaev
Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russian Federation
| | - Iraida Baidina
- Nikolaev
Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russian Federation
| | - Galina Romanenko
- International
Tomography Centre, Russian Academy of Sciences, 630090 Novosibirsk, Russian Federation
| | - Olga Gerasko
- Nikolaev
Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russian Federation
| | - Sergey Korenev
- Nikolaev
Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russian Federation
- Novosibirsk State University, 630090 Novosibirsk, Russian Federation
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Abramov PA, Vicent C, Kompankov NB, Gushchin AL, Sokolov MN. Platinum polyoxoniobates. Chem Commun (Camb) 2015; 51:4021-3. [PMID: 25659830 DOI: 10.1039/c5cc00315f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Coordination of {Pt(OH)2}2+ fragments to Lindqvist type hexaniobates
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Affiliation(s)
- P. A. Abramov
- Nikolaev Institute of Inorganic Chemistry Sb RAS
- Novosibirsk
- Russia
- Novosibirsk State University
- Novosibirsk
| | - C. Vicent
- Serveis Centrals d'Instrumentació Científica
- Universitat Jaume I
- 12071 Castelló
- Spain
| | - N. B. Kompankov
- Nikolaev Institute of Inorganic Chemistry Sb RAS
- Novosibirsk
- Russia
| | - A. L. Gushchin
- Nikolaev Institute of Inorganic Chemistry Sb RAS
- Novosibirsk
- Russia
- Novosibirsk State University
- Novosibirsk
| | - M. N. Sokolov
- Nikolaev Institute of Inorganic Chemistry Sb RAS
- Novosibirsk
- Russia
- Novosibirsk State University
- Novosibirsk
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31
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Martín-Caballero J, Wéry ASJ, Artetxe B, Reinoso S, Felices LS, Vilas JL, Gutiérrez-Zorrilla JM. Sequential single-crystal-to-single-crystal transformations promoted by gradual thermal dehydration in a porous metavanadate hybrid. CrystEngComm 2015. [DOI: 10.1039/c5ce01076d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The porous hybrid metavanadate [{Cu(cyclam)}(VO3)2]·5H2O undergoes a series of sequential and reversible transformations upon thermally-triggered gradual dehydration that have been monitored by single-crystal X-ray diffraction.
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Affiliation(s)
| | - Ana San José Wéry
- Departamento de Desarrollo Sostenible
- Universidad Católica de Ávila
- 05005 Ávila, Spain
| | - Beñat Artetxe
- Departamento de Química Inorgánica
- Facultad de Ciencia y Tecnología
- Universidad del País Vasco UPV/EHU
- 48080 Bilbao, Spain
| | - Santiago Reinoso
- Departamento de Química Inorgánica
- Facultad de Ciencia y Tecnología
- Universidad del País Vasco UPV/EHU
- 48080 Bilbao, Spain
| | - Leire San Felices
- Servicios Generales de Investigación SGIker
- Facultad de Ciencia y Tecnología
- Universidad del País Vasco UPV/EHU
- 48080 Bilbao, Spain
| | - José Luis Vilas
- BCMaterials
- Parque Tecnológico de Bizkaia
- 48160 Derio, Spain
- Departamento de Química Física
- Facultad de Ciencia y Tecnología
| | - Juan M. Gutiérrez-Zorrilla
- BCMaterials
- Parque Tecnológico de Bizkaia
- 48160 Derio, Spain
- Departamento de Química Inorgánica
- Facultad de Ciencia y Tecnología
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32
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Klonowski P, Goloboy JC, Uribe-Romo FJ, Sun F, Zhu L, Gándara F, Wills C, Errington RJ, Yaghi OM, Klemperer WG. Synthesis and Characterization of the Platinum-Substituted Keggin Anion α-H2SiPtW11O404–. Inorg Chem 2014; 53:13239-46. [DOI: 10.1021/ic502617k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Peter Klonowski
- Department
of Chemistry, University of California, 419 Latimer Hall, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron
Road, Berkeley, California 94720, United States
| | - James C. Goloboy
- Department
of Chemistry, University of Illinois at Urbana−Champaign, 505 South Mathews Avenue, Urbana, Illinois 61801, United States
| | | | - Furong Sun
- Department
of Chemistry, University of Illinois at Urbana−Champaign, 505 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Lingyang Zhu
- Department
of Chemistry, University of Illinois at Urbana−Champaign, 505 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Felipe Gándara
- Department
of Chemistry, University of California, 419 Latimer Hall, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron
Road, Berkeley, California 94720, United States
| | - Corinne Wills
- School
of Chemistry, Newcastle University, Newcastle upon Tyne NE1
7RU, United Kingdom
| | - R. John Errington
- School
of Chemistry, Newcastle University, Newcastle upon Tyne NE1
7RU, United Kingdom
| | - Omar M. Yaghi
- Department
of Chemistry, University of California, 419 Latimer Hall, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron
Road, Berkeley, California 94720, United States
- Kavli Energy NanoSciences Institute, Berkeley, California 94720, United States
| | - Walter G. Klemperer
- Department
of Chemistry, University of Illinois at Urbana−Champaign, 505 South Mathews Avenue, Urbana, Illinois 61801, United States
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33
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Organic-functionalized, substituted polyoxovanadium and vanadoniobates: Synthesis, structure and application. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.08.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Son JH, Wang J, Casey WH. Structure, stability and photocatalytic H2 production by Cr-, Mn-, Fe-, Co-, and Ni-substituted decaniobate clusters. Dalton Trans 2014; 43:17928-33. [DOI: 10.1039/c4dt02020k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Among the series of early transition-metal-substituted decaniobate ions synthesized and characterized in this paper, Co- or Ni-substituted decaniobates showed enhanced photocatalytic H2-evolution activity compared to others.
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Affiliation(s)
- Jung-Ho Son
- Department of Chemistry
- University of California
- Davis, USA
| | - Jiarui Wang
- Department of Chemistry
- University of California
- Davis, USA
| | - William H. Casey
- Department of Chemistry
- University of California
- Davis, USA
- Department of Geology
- University of California
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Son JH, Ohlin CA, Casey WH. Highly soluble iron- and nickel-substituted decaniobates with tetramethylammonium countercations. Dalton Trans 2013; 42:7529-33. [PMID: 23588819 DOI: 10.1039/c3dt50887k] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Iron- and nickel-substituted decaniobates, [H2Fe(III)Nb9O28](6-) and [H3Ni(II)Nb9O(28)](6-) were hydrothermally synthesized as tetramethylammonium salts and the structures were determined by X-ray crystallography. The highly soluble title compounds were characterized by ESI-MS, FT-IR and UV-Vis titration.
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Affiliation(s)
- Jung-Ho Son
- Department of Chemistry, University of California, Davis, One Shields Ave, Davis, CA 95616, USA
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Toumi S, Toumi SA, Rzaigui M. Tetra-quinolinium ditelluro(VI)octa-vanadate(V) octa-hydrate. Acta Crystallogr Sect E Struct Rep Online 2013; 69:m595-6. [PMID: 24454030 PMCID: PMC3884254 DOI: 10.1107/s1600536813027347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Accepted: 10/04/2013] [Indexed: 12/02/2022]
Abstract
In the title compound, (C9H8N)4[Te2V8O28]·8H2O, the complete heteropolyanion is generated by a crystallographic inversion centre. One of the two quniolinium ions forms an N—H⋯Op (p = polyoxidometallate) hydrogen bond and the other an N—H⋯Ow (w = water) hydrogen bond. The water molecules further link the components by O—H⋯Op and O—H⋯Ow hydrogen bonds. A number of C—H⋯O interactions and aromatic π–π stacking interactions [shortest centroid–centroid separation = 3.541 (7) Å] are also observed. Together, these generate a three-dimensional network.
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Affiliation(s)
- Sirine Toumi
- Laboratoire de chimie des Matériaux, Faculté des Sciences de Bizerte, 7021 Zarzouna Bizerte, Tunisia
| | - Samah Akriche Toumi
- Laboratoire de chimie des Matériaux, Faculté des Sciences de Bizerte, 7021 Zarzouna Bizerte, Tunisia
| | - Mohamed Rzaigui
- Laboratoire de chimie des Matériaux, Faculté des Sciences de Bizerte, 7021 Zarzouna Bizerte, Tunisia
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37
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Liu Y, Lin J, Chen M, Song L. Investigation on the interaction of the toxicant, gentian violet, with bovine hemoglobin. Food Chem Toxicol 2013; 58:264-72. [DOI: 10.1016/j.fct.2013.04.048] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 04/26/2013] [Accepted: 04/28/2013] [Indexed: 11/30/2022]
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Šimuneková M, Prodius D, Mereacre V, Schwendt P, Turta C, Bettinelli M, Speghini A, Lan Y, Anson CE, Powell AK. Tetradecanuclear lanthanide-vanadium “nanochocolates”: catalytically-active cationic heteropolyoxovanadium clusters. RSC Adv 2013. [DOI: 10.1039/c3ra40385h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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39
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Liu Y, Chen M, Luo Z, Lin J, Song L. Investigation on the site-selective binding of bovine serum albumin by erlotinib hydrochloride. J Biomol Struct Dyn 2012; 31:1160-74. [PMID: 23072300 DOI: 10.1080/07391102.2012.726532] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The purpose of this study was to investigate the site-selective binding of erlotinib hydrochloride (ET), a targeted anticancer drug, to bovine serum albumin (BSA) through 1H NMR, spectroscopic, thermodynamic, and molecular modeling methods. The fluorescence quenching of BSA by ET was a result of the formation of BSA-ET complex with high binding affinity. The site marker competition study combined with isothermal titration calorimetry experiment revealed that ET binds to site II of BSA mainly through hydrogen bond and van der Waals force. Molecular docking was further applied to define the specific binding site of ET to BSA. The conformation of BSA was changed in the presence of ET, revealed by synchronous fluorescence, circular dichroism, and three-dimensional fluorescence spectroscopy results. Further, NMR analysis of the complex revealed that the binding capacity contributed by the aromatic protons in the binding site of BSA might be greater than the aliphatic protons. An animated interactive 3D complement (I3DC) is available in Proteopedia at http://proteopedia.org/w/Journal:JBSD:26.
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Affiliation(s)
- Yan Liu
- a The State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou , Fujian , 350002 , P.R. China
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Izarova NV, Pope MT, Kortz U. Noble Metals in Polyoxometalates. Angew Chem Int Ed Engl 2012; 51:9492-510. [DOI: 10.1002/anie.201202750] [Citation(s) in RCA: 322] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Indexed: 11/06/2022]
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El Moll H, Zhu W, Oldfield E, Rodriguez-Albelo LM, Mialane P, Marrot J, Vila N, Mbomekallé IM, Rivière E, Duboc C, Dolbecq A. Polyoxometalates functionalized by bisphosphonate ligands: synthesis, structural, magnetic, and spectroscopic characterizations and activity on tumor cell lines. Inorg Chem 2012; 51:7921-31. [PMID: 22725619 DOI: 10.1021/ic3010079] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the synthesis and characterization of eight new Mo, W, or V-containing polyoxometalate (POM) bisphosphonate complexes with metal nuclearities ranging from 1 to 6. The compounds were synthesized in water by treating Mo(VI), W(VI), V(IV), or V(V) precursors with biologically active bisphosphonates H(2)O(3)PC(R)(OH)PO(3)H(2) (R = C(3)H(6)NH(2), Ale; R = CH(2)S(CH(3))(2), Sul and R = C(4)H(5)N(2), Zol, where Ale = alendronate, Sul = (2-Hydroxy-2,2-bis-phosphono-ethyl)-dimethyl-sulfonium and Zol = zoledronate). Mo(6)(Sul)(2) and Mo(6)(Zol)(2) contain two trinuclear Mo(VI) cores which can rotate around a central oxo group while Mo(Ale)(2) and W(Ale)(2) are mononuclear species. In V(5)(Ale)(2) and V(5)(Zol)(2) a central V(IV) ion is surrounded by two V(V) dimers bound to bisphosphonate ligands. V(6)(Ale)(4) can be viewed as the condensation of one V(5)(Ale)(2) with one additional V(IV) ion and two Ale ligands, while V(3)(Zol)(3) is a triangular V(IV) POM. These new POM bisphosphonates complexes were all characterized by single-crystal X-ray diffraction. The stability of the Mo and W POMs was studied by (31)P NMR spectroscopy and showed that all compounds except the mononuclear Mo(Ale)(2) and W(Ale)(2) were stable in solution. EPR measurements performed on the vanadium derivatives confirmed the oxidation state of the V ions and evidenced their stability in aqueous solution. Electrochemical studies on V(5)(Ale)(2) and V(5)(Zol)(2) showed reduction of V(V) to V(IV), and magnetic susceptibility investigations on V(3)(Zol)(3) enabled a detailed analysis of the magnetic interactions. The presence of zoledronate or vanadium correlated with the most potent activity (IC(50)~1-5 μM) against three human tumor cell lines.
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Affiliation(s)
- Hani El Moll
- Institut Lavoisier de Versailles, UMR 8180, Université de Versailles Saint-Quentin en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles cedex, France
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Mondloch JE, Bayram E, Finke RG. A review of the kinetics and mechanisms of formation of supported-nanoparticle heterogeneous catalysts. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcata.2011.11.011] [Citation(s) in RCA: 111] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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45
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Kato CN, Morii Y, Hattori S, Nakayama R, Makino Y, Uno H. Diplatinum(ii)-coordinated polyoxotungstate: synthesis, molecular structure, and photocatalytic performance for hydrogen evolution from water under visible-light irradiation. Dalton Trans 2012; 41:10021-7. [DOI: 10.1039/c2dt30915g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Sokolov MN, Adonin SA, Peresypkina EV, Fedin VP. A Pt(ii) isopolytungstate: synthesis and crystal structure. Dalton Trans 2012; 41:11978-9. [DOI: 10.1039/c2dt31123b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Nishio M, Inami S, Katayama M, Ozutsumi K, Hayashi Y. Lanthanide complexes of macrocyclic polyoxovanadates by VO4 units: synthesis, characterization, and structure elucidation by X-ray crystallography and EXAFS spectroscopy. Inorg Chem 2011; 51:784-93. [PMID: 22220777 DOI: 10.1021/ic200638f] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reactions of a tetravanadate anion, [V(4)O(12)](4-), with a series of lanthanide(III) salts yield three types of lanthanide complexes of macrocyclic polyoxovanadates: (Et(4)N)(6)[Ln(III)V(9)O(27)] [Ln = Nd (1), Sm (2), Eu (3), Gd (4), Tb (5), Dy (6)], (Et(4)N)(5)[(H(2)O)Ho(III)(V(4)O(12))(2)] (7), and (Et(4)N)(7)[Ln(III)V(10)O(30)] [Ln = Er (8), Tm (9), Yb (10), Lu (11)]. Lanthanide complexes 1-11 are isolated and characterized by IR, elemental analysis, single-crystal X-ray diffraction, and extended X-ray absorption fine structure spectroscopy (EXAFS). Lanthanide complexes 1-6 are composed of a square-antiprism eight-coordinated Ln(III) center with a macrocyclic polyoxovanadate that is constructed from nine VO(4) tetrahedra through vertex sharing. The structure of 7 is composed of a seven-coordinated Ho(III) center, which exhibits a capped trigonal-prism coordination environment by the sandwiching of two cyclic tetravanadates with a capping H(2)O ligand. Lanthanide complexes 8-11 have a six-coordinated Ln(III) center with a 10-membered vanadate ligand. The structural trend to adopt a larger coordination number for a larger lanthanide ion among the three types of structures is accompanied by a change in the vanadate ring sizes. These lanthanide complexes are examined by EXAFS spectroscopies on lanthanide L(III) absorption edges, and the EXAFS oscillations of each of the samples in the solid state and in acetonitrile are identical. The Ln-O and Ln···V bond lengths obtained from fits of the EXAFS data are consistent with the data from the single-crystal X-ray studies, reflecting retention of the structures in acetonitrile.
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Affiliation(s)
- Masaki Nishio
- Department of Chemistry, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
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Joo HC, Park KM, Lee U. Anhydrous penta-guanidinium dihydrogen nona-vanado(IV)platinate(IV). Acta Crystallogr Sect E Struct Rep Online 2011; 67:m1801-2. [PMID: 22199585 PMCID: PMC3238708 DOI: 10.1107/s1600536811049166] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2011] [Accepted: 11/18/2011] [Indexed: 11/27/2022]
Abstract
The title compound, (CH6N3)5[H2PtV9O28], containing the nonavanadoplatinate(IV) polyanion, was obtained by hydrothermal reaction. The polyanion has approximate C2v symmetry. The two Pt-bound μ2-O atoms are protonated in the polyanion. The heteropolyanions form inversion-generated dimers, {[H2PtV9O28]2}10−, held together by each of the two μ2-O—H⋯μ2-O and μ2-O—H⋯μ3-O hydrogen bonds. The guanidinium cations are hydrogen bonded with the μ2- and terminal O atoms of the polyanion, connecting the polyanions into a three-dimensional network.
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49
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Hayashi Y. Hetero and lacunary polyoxovanadate chemistry: Synthesis, reactivity and structural aspects. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2011.02.013] [Citation(s) in RCA: 140] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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