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Chang YH, Shen W, Shezaf JZ, Ortiz E, Krische MJ. Palladium(I)-Iodide-Catalyzed Deoxygenative Heck Reaction of Vinyl Triflates: A Formate-Mediated Cross-Electrophile Reductive Coupling with cine-Substitution. J Am Chem Soc 2023; 145:22890-22895. [PMID: 37845783 PMCID: PMC10615887 DOI: 10.1021/jacs.3c09876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
The first deoxygenative Heck reactions are described, as illustrated by formate-mediated cine-substitutions of vinyl triflates with aryl iodides. The collective data corroborate a mechanism in which Pd(OAc)2 and Bu4NI form the dianionic iodide-bridged dimer [Pd2I6][NBu4]2, which, under reducing conditions, serves as a precursor to the palladium(I) complex [Pd2I4][NBu4]2. Dinculear oxidative addition of aryl iodide forms [Pd2I5(Ar)][NBu4]2, which dissociates to the monometallic complex [PdI2(Ar)][NBu4]. Vinyl triflate migratory insertion-sulfonate elimination delivers a palladium(IV) carbene, which upon β-hydride elimination/C-H reductive elimination gives the product of cine-substitution. These processes are the first efficient formate-mediated cross-electrophile reductive couplings beyond carbonyl addition.
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Affiliation(s)
- Yu-Hsiang Chang
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Weijia Shen
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Jonathan Z Shezaf
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Eliezer Ortiz
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Michael J Krische
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
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Moors M, Warneke J, López X, de Graaf C, Abel B, Monakhov KY. Insights from Adsorption and Electron Modification Studies of Polyoxometalates on Surfaces for Molecular Memory Applications. Acc Chem Res 2021; 54:3377-3389. [PMID: 34427081 DOI: 10.1021/acs.accounts.1c00311] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
This Account highlights recent experimental and theoretical work focusing on the development of polyoxometalates (POMs) as possible active switching units in what may be called "molecule-based memory cells". Herein, we critically discuss how multiply charged vanadium-containing POMs, which exhibit stable metal-oxo bonds and are characterized by the excellent ability to change their redox states without significant structural distortions of the central polyoxoanion core, can be immobilized best and how they may work optimally at appropriate surfaces. Furthermore, we critically discuss important issues and challenges on the long way toward POM-based nanoelectronics. This Account is divided into four sections shedding light on POM interplay in solution and on surfaces, ion soft-landing of mass-selected POMs on surfaces, electronic modification of POMs on surfaces, and computational modeling of POMs on surfaces. The sections showcase the complex nature of far-reaching POM interactions with the chemical surroundings in solution and the properties of POMs in the macroscopic environment of electrode surfaces. Section 2 describes complex relationships of POMs with their counter-cations, solvent molecules, and water impurities, which have been shown to exhibit a direct impact on the resulting surface morphology, where a concentration-dependent formation of micellar structures can be potentially observed. Section 3 gives insights into the ion soft-landing deposition of mass-selected POMs on electrode surfaces, which emerges as an appealing method because the simultaneous deposition of agglomeration-stimulating counter-cations can be avoided. Section 4 provides details of electronic properties of POMs and their modification by external electronic stimuli toward the development of multiple-state resistive (memristive) switches. Section 5 sheds light on issues of the determination of the electronic structure properties of POMs across their interfaces, which is difficult to address by experiment. The studies summarized in these four sections have employed various X-ray-scattering, microscopy, spectroscopy, and computational techniques for imaging of POM interfaces in solution and on surfaces to determine the adsorption type, agglomeration tendency, distribution, and oxidation state of deposited molecules. The presented research findings and conceptual ideas may assist experimentalists and theoreticians to advance the exploration of POM electrical conductivity as a function of metal redox and spin states and to pave the way for a realization of ("brain-inspired") POM-based memory devices, memristive POM-surface device engineering, and energy efficient nonvolatile data storage and processing technologies.
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Affiliation(s)
- Marco Moors
- Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318 Leipzig, Germany
| | - Jonas Warneke
- Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318 Leipzig, Germany
- Wilhelm-Ostwald-Institute for Physical and Theoretical Chemistry, Leipzig University, Linnéstr. 2, 04103 Leipzig, Germany
| | - Xavier López
- Universitat Rovira i Virgili, Departament de Química Física i Inorgànica, c/Marcel·lí Domingo 1, 43007 Tarragona, Spain
| | - Coen de Graaf
- Universitat Rovira i Virgili, Departament de Química Física i Inorgànica, c/Marcel·lí Domingo 1, 43007 Tarragona, Spain
- ICREA, Passeig Lluís Companys 23, 08010 Barcelona, Spain
| | - Bernd Abel
- Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318 Leipzig, Germany
- Wilhelm-Ostwald-Institute for Physical and Theoretical Chemistry, Leipzig University, Linnéstr. 2, 04103 Leipzig, Germany
| | - Kirill Yu. Monakhov
- Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318 Leipzig, Germany
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Decavanadate-based clusters as bifunctional catalysts for efficient treatment of carbon dioxide and simulant sulfur mustard. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2020.101419] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Pütt R, Kozłowski P, Werner I, Griebel J, Schmitz S, Warneke J, Monakhov KY. {P 2V 3W 15}-Polyoxometalates Functionalized with Phthalocyaninato Y and Yb Moieties. Inorg Chem 2021; 60:80-86. [PMID: 33180468 DOI: 10.1021/acs.inorgchem.0c02257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A tris(alkoxo)pyridine-augmented Wells-Dawson polyoxometalate (nBu4N)6[WD-Py] (WD = P2V3W15O59(OCH2)3C, Py = C5H4N) was functionalized with phthalocyaninato metal moieties (MPc where M = Y or Yb and Pc = C32H16N8) to afford (nBu4N)4[HWD-Py(MPc)] compounds. High-resolution mass spectrometry was used to detect and identify the hybrid assembly. The magnetism studies reveal substantial differences between M = Yb (monomeric, single-ion paramagnetism) and M = Y (containing dimers, radical character). The results of electronic paramagnetic resonance spectroscopy, SQUID magnetometry, and magnetochemical calculations indicate the presence of intramolecular charge transfer from the MPc moiety to the polyoxometalate and of intermolecular charge transfer from the MPc moiety of one molecule to the polyoxometalate unit of another molecule. These compounds with identified VIV ions represent unique examples of transition-metal/lanthanide complex-POM hybrid compounds with nonphotoinduced charge transfer between electron donor and acceptor centers.
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Affiliation(s)
- Ricarda Pütt
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Piotr Kozłowski
- Faculty of Physics, Adam Mickiewicz University in Poznań, ul. Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland
| | - Irina Werner
- Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318 Leipzig, Germany
| | - Jan Griebel
- Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318 Leipzig, Germany
| | - Sebastian Schmitz
- Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318 Leipzig, Germany
| | - Jonas Warneke
- Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318 Leipzig, Germany.,Wilhelm-Ostwald-Institute for Physical and Theoretical Chemistry, Leipzig University, Linnéstraße 2, 04103 Leipzig, Germany
| | - Kirill Yu Monakhov
- Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318 Leipzig, Germany
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Wang X, Zhang T, Li Y, Lin J, Li H, Wang XL. In Situ Ligand-Transformation-Involved Synthesis of Inorganic–Organic Hybrid Polyoxovanadates as Efficient Heterogeneous Catalysts for the Selective Oxidation of Sulfides. Inorg Chem 2020; 59:17583-17590. [DOI: 10.1021/acs.inorgchem.0c02798] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Xiang Wang
- Liaoning Professional Technology Innovation Center of Liaoning Province for Conversion Materials of Solar Cell, College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121000, P. R. China
| | - Tong Zhang
- Liaoning Professional Technology Innovation Center of Liaoning Province for Conversion Materials of Solar Cell, College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121000, P. R. China
| | - Yunhui Li
- Liaoning Professional Technology Innovation Center of Liaoning Province for Conversion Materials of Solar Cell, College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121000, P. R. China
| | - Jiafeng Lin
- Liaoning Professional Technology Innovation Center of Liaoning Province for Conversion Materials of Solar Cell, College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121000, P. R. China
| | - Huan Li
- Liaoning Professional Technology Innovation Center of Liaoning Province for Conversion Materials of Solar Cell, College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121000, P. R. China
| | - Xiu-Li Wang
- Liaoning Professional Technology Innovation Center of Liaoning Province for Conversion Materials of Solar Cell, College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121000, P. R. China
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Chi J, Fan M, Su Z, Li X, Sun J, Zhou C, Hu X. Octamolybdate-based hybrid constructed by flexible bis-triazole ligands: synthesis, photocatalytic and electrochemical properties. NEW J CHEM 2020. [DOI: 10.1039/d0nj00169d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel polyoxometalate-based organic–inorganic hybrid compound was synthesized via a facile in situ hydrothermal reaction. 1 exhibits selective photocatalytic degradation of dyes and the great property to electrocatalytically reduce H2O2 and NaNO2.
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Affiliation(s)
- Jiaqi Chi
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun
- China
- Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry
| | - Mingyue Fan
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun
- China
- Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry
| | - Zhongmin Su
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun
- China
- Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry
| | - Xiao Li
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun
- China
- Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry
| | - Jing Sun
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun
- China
- Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry
| | - Chen Zhou
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun
- China
- Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry
| | - Xiaoli Hu
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun
- China
- Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry
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Zhang Z, Ishikawa S, Zhu Q, Murayama T, Sadakane M, Hara M, Ueda W. Redox-Active Zeolitic Transition Metal Oxides Based on ε-Keggin Units for Selective Oxidation. Inorg Chem 2019; 58:6283-6293. [DOI: 10.1021/acs.inorgchem.9b00502] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Zhenxin Zhang
- School of Material Science and Chemical Engineering, Ningbo University, Fenghua Road 818, Ningbo, Zhejiang 315211, P. R. China
| | - Satoshi Ishikawa
- Faculty of Engineering, Kanagawa University, Rokkakubashi,
Kanagawa-ku, Yokohama-shi, Kanagawa 221-8686, Japan
| | - Qianqian Zhu
- School of Material Science and Chemical Engineering, Ningbo University, Fenghua Road 818, Ningbo, Zhejiang 315211, P. R. China
| | - Toru Murayama
- Research Center for Gold Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Masahiro Sadakane
- Department of Applied Chemistry, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima 739-8527, Japan
| | - Michikazu Hara
- Materials and Structures Laboratory, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama-city, Kanagawa 226-8503, Japan
| | - Wataru Ueda
- Faculty of Engineering, Kanagawa University, Rokkakubashi,
Kanagawa-ku, Yokohama-shi, Kanagawa 221-8686, Japan
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Tian AX, Fu YB, Cui HT, Ying J, Yang ML, Yang Y, Wang XL. A series of metal–organic loops templated by [SiMo12O40]4− and [β-Mo8O26]4− anions using double chelating ligands: amperometric sensing and selective photocatalytic properties. NEW J CHEM 2019. [DOI: 10.1039/c9nj02224d] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By changing the POM anions and TM ions, a series of compounds with multi-nuclear loops was formed.
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Affiliation(s)
- Ai-xiang Tian
- Department of Chemistry
- Bohai University
- Jinzhou
- P. R. China
| | - Yu-bo Fu
- Department of Chemistry
- Bohai University
- Jinzhou
- P. R. China
| | - Hong-tao Cui
- Department of Chemistry
- Bohai University
- Jinzhou
- P. R. China
| | - Jun Ying
- Department of Chemistry
- Bohai University
- Jinzhou
- P. R. China
| | - Meng-le Yang
- Department of Chemistry
- Bohai University
- Jinzhou
- P. R. China
| | - Yan Yang
- Department of Chemistry
- Bohai University
- Jinzhou
- P. R. China
| | - Xiu-li Wang
- Department of Chemistry
- Bohai University
- Jinzhou
- P. R. China
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Linnenberg O, Moors M, Notario-Estévez A, López X, de Graaf C, Peter S, Baeumer C, Waser R, Monakhov KY. Addressing Multiple Resistive States of Polyoxovanadates: Conductivity as a Function of Individual Molecular Redox States. J Am Chem Soc 2018; 140:16635-16640. [DOI: 10.1021/jacs.8b08780] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Oliver Linnenberg
- Institut für Anorganische Chemie, RWTH Aachen University, Landoltweg 1, Aachen 52074, Germany
| | - Marco Moors
- Peter Grünberg Institut, JARA-FIT, Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, Jülich 52425, Germany
| | - Almudena Notario-Estévez
- Universitat Rovira i Virgili, Departament de Química Física i Inorgànica, Marcel·lí Domingo 1, Tarragona 43007, Spain
| | - Xavier López
- Universitat Rovira i Virgili, Departament de Química Física i Inorgànica, Marcel·lí Domingo 1, Tarragona 43007, Spain
| | - Coen de Graaf
- Universitat Rovira i Virgili, Departament de Química Física i Inorgànica, Marcel·lí Domingo 1, Tarragona 43007, Spain
- ICREA, Passeig Lluís Companys 23, Barcelona 08010, Spain
| | - Sophia Peter
- Institut für Anorganische Chemie, RWTH Aachen University, Landoltweg 1, Aachen 52074, Germany
| | - Christoph Baeumer
- Peter Grünberg Institut, JARA-FIT, Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, Jülich 52425, Germany
| | - Rainer Waser
- Peter Grünberg Institut, JARA-FIT, Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, Jülich 52425, Germany
- Institut für Werkstoffe der Elektrotechnik 2, RWTH Aachen University, Aachen 52056, Germany
| | - Kirill Yu. Monakhov
- Institut für Anorganische Chemie, RWTH Aachen University, Landoltweg 1, Aachen 52074, Germany
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