1
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Lerch S, Fritsch S, Strassner T. Friedel-Crafts acylation of benzene derivatives in tunable aryl alkyl ionic liquids (TAAILs). Beilstein J Org Chem 2023; 19:212-216. [PMID: 36865025 PMCID: PMC9972882 DOI: 10.3762/bjoc.19.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 01/30/2023] [Indexed: 02/25/2023] Open
Abstract
An iron(III) chloride hexahydrate-catalyzed Friedel-Crafts acylation of benzene derivatives in tunable aryl alkyl ionic liquids (TAAILs) has been developed. Through optimization of the metal salt, reaction conditions and ionic liquids, we were able to design a robust catalyst system that tolerates different electron-rich substrates under ambient atmosphere and allows for a multigram scale.
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Affiliation(s)
- Swantje Lerch
- Professur für Physikalische Organische Chemie, Technische Universität Dresden, 01062 Dresden, Germany
| | - Stefan Fritsch
- Professur für Physikalische Organische Chemie, Technische Universität Dresden, 01062 Dresden, Germany
| | - Thomas Strassner
- Professur für Physikalische Organische Chemie, Technische Universität Dresden, 01062 Dresden, Germany
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2
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Więcławik J, Chrobok A. Gallium(III)- and Indium(III)-Containing Ionic Liquids as Highly Active Catalysts in Organic Synthesis. Molecules 2023; 28:1955. [PMID: 36838943 PMCID: PMC9967191 DOI: 10.3390/molecules28041955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
The chemical industry still requires development of environmentally friendly processes. Acid-catalysed chemical processes may cause environmental problems. Urgent need to replace conventional acids has forced the search for sustainable alternatives. Metal-containing ionic liquids have drawn considerable attention from scientists for many years. These compounds may exhibit very high Lewis acidity, which is usually dependent on the composition of the ionic liquid with the particular content of metal salt. Therefore, metal-containing ionic liquids have found a lot of applications and are successfully employed as catalysts, co-catalysts or reaction media in various fields of chemistry, especially in organic chemistry. Gallium(III)- and indium(III)-containing ionic liquids help to transfer the remarkable activity of metal salts into even more active and easier-to-handle forms of ionic liquids. This review highlights the wide range of possible applications and the high potential of metal-containing ionic liquids with special focus on Ga(III) and In(III), which may help to outline the framework for further development of the presented research topic and synthesis of new representatives of this group of compounds.
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Affiliation(s)
| | - Anna Chrobok
- Department of Chemical Organic Technology and Petrochemistry, Faculty of Chemistry, Silesian University of Technology, Bolesława Krzywoustego 4, 44-100 Gliwice, Poland
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3
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Chen C, Tang Q, Xu H, Tang M, Li X, Liu L, Dong J. Alkyl-tetralin base oils synthesized from coal-based chemicals and evaluation of their lubricating properties. Chin J Chem Eng 2023. [DOI: 10.1016/j.cjche.2022.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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4
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Liu XB, Rong Q, Tan J, Chen C, Hu YL. Recent Advances in Catalytic Oxidation of Organic Sulfides: Applications of Metal–Ionic Liquid Catalytic Systems. Front Chem 2022; 9:798603. [PMID: 35296037 PMCID: PMC8918828 DOI: 10.3389/fchem.2021.798603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 12/20/2021] [Indexed: 11/13/2022] Open
Abstract
Catalytic oxidation of organic sulfides is of considerable significance in industrial chemistry and fuel industry. Therefore, numerous methods have been developed for the oxidation. Metal-containing ionic liquid-based catalysts can catalyze the selective oxidation reactions and are highly used in chemical processes, which have also been used as effective solvents, reaction media, extractants, and catalysts for the oxidation of organic sulfides including oxidative desulfurization of fuel oil. Recently, much attention is being drawn to the preparation of heterogenous catalysts based on the immobilization of metal- or nonmetal-containing ILs on diverse solid supports, which can be easily separated after the completion reaction and recycled. Therefore, there is still an increasing interest in developing new and efficient catalytic procedures for the oxidation of organic sulfides. In this review, we have outlined the recent advances in catalytic oxidation of organic sulfides including oxidative desulfurization of fuel oil. The versatilities and adaptabilities of metal–ionic liquid catalytic systems in the selective oxidation of sulfides are considered a powerful research field in these transformations.
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Affiliation(s)
- Xiao Bing Liu
- College of Chemistry and Chemical Engineering, Jinggangshan University, Ji’an, China
| | - Qi Rong
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, College of Materials and Chemical Engineering, China Three Gorges University, Yichang, China
| | - Jin Tan
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, College of Materials and Chemical Engineering, China Three Gorges University, Yichang, China
| | - Chen Chen
- College of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Yu Lin Hu
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, College of Materials and Chemical Engineering, China Three Gorges University, Yichang, China
- *Correspondence: Yu Lin Hu,
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5
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Deng L, Su Q, Tan X, Wang Y, Dong L, He H, Li Z, Cheng W. Tunable imidazolium ionic liquids as efficient catalysts for conversion of urea into cyclic carbonates. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112153] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Behrens K, Balischewski C, Sperlich E, Menski A, Balderas-Valadez RF, Pacholski C, Günter C, Lubahn S, Kelling A, Taubert A. Mixed chloridometallate( ii) ionic liquids with tunable color and optical response for potential ammonia sensors. RSC Adv 2022; 12:35072-35082. [DOI: 10.1039/d2ra05581c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 11/21/2022] [Indexed: 12/13/2022] Open
Abstract
Eight d-metal-containing N-butylpyridinium-based ionic liquids (ILs) were synthesized, characterized, and investigated for their optical properties.
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Affiliation(s)
- Karsten Behrens
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam, Germany
| | - Christian Balischewski
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam, Germany
| | - Eric Sperlich
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam, Germany
| | - Antonia Menski
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam, Germany
| | | | - Claudia Pacholski
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam, Germany
| | - Christina Günter
- Institute of Geosciences, University of Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam, Germany
| | - Susanne Lubahn
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam, Germany
| | - Alexandra Kelling
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam, Germany
| | - Andreas Taubert
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam, Germany
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7
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8
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Morad V, McCall KM, Sakhatskyi K, Lehmann E, Walfort B, Losko AS, Trtik P, Strobl M, Yakunin S, Kovalenko MV. Luminescent Lead Halide Ionic Liquids for High-Spatial-Resolution Fast Neutron Imaging. ACS PHOTONICS 2021; 8:3357-3364. [PMID: 34820475 PMCID: PMC8603383 DOI: 10.1021/acsphotonics.1c01348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Indexed: 05/12/2023]
Abstract
The fast neutron imaging technique with recoil proton detection harbors significant potential for imaging of thick, large-scale objects containing high-Z elements. However, the challenge to find efficient fast neutron scintillators with high spatial resolution is ongoing. The list of requirements for such scintillators is long and demanding: a proton-rich, scattering-free material combining high light yield with the absence of light reabsorption. To meet these challenges, we look for a suitable material among a rising class of 0D organic-inorganic Pb(II) halide hybrids. The use of large organic cations, e.g., trihexyltetradecylphosphonium, results in room-temperature ionic liquids that combine highly Stokes-shifted (up to 1.7 eV), reabsorption-free, and efficient emission (photoluminescence quantum yield up to 60%) from molecularly small and dense (PbX2 molar fraction up to 0.33) emitting centers. We investigate the optical properties of the resulting ionic liquids and showcase their utility as fast neutron imaging scintillators. Concomitantly with good light yield, such fast-neutron scintillators exhibit both higher spatial resolution and lower γ-ray sensitivity compared with commercial ZnS:Cu-based screens.
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Affiliation(s)
- Viktoriia Morad
- Laboratory
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Kyle M. McCall
- Laboratory
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Kostiantyn Sakhatskyi
- Laboratory
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | | | | | - Adrian S. Losko
- Forschungs-Neutronenquelle
Heinz Maier-Leibnitz, 85748 Garching, Germany
| | - Pavel Trtik
- Paul
Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - Markus Strobl
- Paul
Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - Sergii Yakunin
- Laboratory
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Maksym V. Kovalenko
- Laboratory
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
- E-mail:
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9
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Chen C, Tang Q, Xu H, Liu L, Tang M, Li X, Dong J. Alkylation of naphthalene with n-butene catalyzed by liquid coordination complexes and its lubricating properties. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2021.01.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Aminov RI, Khusnutdinov RI. Synthesis of Polycyclic Hydrocarbons C 14H 20 by Hydrogenation of exo–exo-, exo–endo-, endo–exo-, and endo–endo-Hexacyclo[9.2.1.0 2,10.0 3,8.0 4,6.0 5,9]tetradec-12-enes with H 2SO 4 and Isomerization of the Products to Diamantane Induced by Ionic Liquids. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rishat I. Aminov
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, Prospekt Oktyabrya 141, Ufa 450075, Russian Federation
| | - Ravil I. Khusnutdinov
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, Prospekt Oktyabrya 141, Ufa 450075, Russian Federation
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11
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Kelley SP, Smetana V, Mudring AV, Rogers RD. Structural analysis of mono-substituted N-butyl-pyridinium salts: in search of ionic liquids. J COORD CHEM 2021. [DOI: 10.1080/00958972.2021.1876851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Steven P. Kelley
- Department of Chemistry, University of Missouri, Columbia, MO, USA
| | - Volodymyr Smetana
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - Anja-Verena Mudring
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - Robin D. Rogers
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
- College of Arts and Sciences, The University of Alabama, Tuscaloosa, AL, USA
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12
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Wang HN, Zhang AG, Zhang Z, Tian HR, Yue Q, Zhao X, Lu Y, Liu SX. Synthesis and Properties of a Series of Pure Inorganic Ionic Liquids Based on Rare Earth Cations and Polyoxometalates. ACTA CHIMICA SINICA 2021. [DOI: 10.6023/a21040130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Abstract
This mini-review briefly describes the recent progress in the design and development of catalysts based on the presence of ionic liquids. In particular, the focus was on heterogeneous systems (supported ionic liquid (IL) phase catalysts (SILPC), solid catalysts with ILs (SCILL), porous liquids), which due to the low amounts of ionic liquids needed for their production, eliminate basic problems observed in the case of the employment of ionic liquids in homogeneous systems, such as high price, high viscosity, and efficient isolation from post-reaction mixtures.
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14
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Novel and efficient multifunctional periodic mesoporous organosilica supported benzotriazolium ionic liquids for reusable synthesis of 2,4,5-trisubstituted imidazoles. JOURNAL OF SAUDI CHEMICAL SOCIETY 2020. [DOI: 10.1016/j.jscs.2020.08.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Zhang R, Li PP, Gu GG, Ren WM. Evaluation of the Lewis acidity of metal complexes using ESI mass spectrometry. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2020; 26:332-340. [PMID: 32741213 DOI: 10.1177/1469066720944330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Metal complexes have extensive applications in catalysis, however, the efficient evaluation of Lewis acidity of metal complexes is still a challenge. Herein, we report a method by using electrospray ionization mass spectrometry (ESI-MS) to evaluate the Lewis acidity of metal complexes in the presence of a reference Lewis base, in which the value of the Lewis acidity can be quantized by the bond dissociation energy (BDE) of the resultant Lewis acid-base pairs. Using this method, the Lewis acidity of tetradentate Schiff-base metal complexes (designated as salenMX), a class of common metal complexes in the homogeneous catalysis, was studied in detail. For the salenM(III)X complexes (M = Al, Cr, Fe, Co), the Lewis acidity tendency is Al > Cr > Fe > Co due to a strong affinity between the Al complex and the reference Lewis base while a weak affinity concerning on the Co complex. Additionally, the effect of ligand steric and electronic nature on the Lewis acidity was studied by using Co complex. Furthermore, density functional theory (DFT) was employed to calculate the BDE, which consists with the results obtained from ESI-MS. The ESI-MS method provides a convenient and efficient method for evaluating the Lewis acidity of metal complexes.
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Affiliation(s)
- Rong Zhang
- Key Laboratory of Fine Chemicals, 12399Dalian University of Technology, Dalian, China
| | - Ping-Ping Li
- Key Laboratory of Fine Chemicals, 12399Dalian University of Technology, Dalian, China
| | - Ge-Ge Gu
- Key Laboratory of Fine Chemicals, 12399Dalian University of Technology, Dalian, China
| | - Wei-Min Ren
- Key Laboratory of Fine Chemicals, 12399Dalian University of Technology, Dalian, China
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16
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Kore R, Mishra MK, Gonela UM, Rogers RD. Chloroaluminate Liquid Clathrates: Is It the Cations or the Anions That Drive the Solubility of Aromatics? Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c03980] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rajkumar Kore
- College of Arts & Sciences, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Manish Kumar Mishra
- College of Arts & Sciences, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Uma Maheshwar Gonela
- College of Arts & Sciences, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Robin D. Rogers
- College of Arts & Sciences, The University of Alabama, Tuscaloosa, Alabama 35487, United States
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17
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Kore R, Scurto AM, Shiflett MB. Review of Isobutane Alkylation Technology Using Ionic Liquid-Based Catalysts—Where Do We Stand? Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c03418] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rajkumar Kore
- Department of Chemical and Petroleum Engineering, University of Kansas, 1530 W. 15th St., Lawrence, Kansas 66045, United States
- Center for Environmentally Beneficial Catalysis, University of Kansas, 1501 Wakarusa Dr., Lawrence, Kansas 66047, United States
| | - Aaron M. Scurto
- Department of Chemical and Petroleum Engineering, University of Kansas, 1530 W. 15th St., Lawrence, Kansas 66045, United States
- Center for Environmentally Beneficial Catalysis, University of Kansas, 1501 Wakarusa Dr., Lawrence, Kansas 66047, United States
| | - Mark B. Shiflett
- Department of Chemical and Petroleum Engineering, University of Kansas, 1530 W. 15th St., Lawrence, Kansas 66045, United States
- Center for Environmentally Beneficial Catalysis, University of Kansas, 1501 Wakarusa Dr., Lawrence, Kansas 66047, United States
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18
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Dutta AK, Borah R, Boruah K. Development of N,N-disulfo-1,1,3,3-tetramethylguanidinium chlorometallates as heterogeneous catalysts for one pot synthesis of 1,2-dihydro-1-aryl-3H-naphth[1, 2-e][1,3]oxazin-3-one derivatives. CURRENT ORGANOCATALYSIS 2020. [DOI: 10.2174/2213337207999200721012534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Four members of N,N-disulfo-1,1,3,3-tetramethylguanidinium chlorometallates [DSTMG]n[X],
where n= 1 or 2; X= FeCl4
-
, Zn2Cl6
2-, NiCl4
2-, MnCl4
2- were synthesized as solid Brønsted-Lewis acidic compounds and
studied the catalytic activity with the most acidic salt for three-component synthesis of 1,2-dihydro-1-aryl-3H-naphth[1,2-
e][1,3]oxazin-3-ones.
Methods:
N,N-disulfo-1,1,3,3-tetramethylguanidinium chlorometallates of the four transition metal cations such as
Fe(III), Zn(II), Ni(II) and Mn(II) were prepared after treatment of the parent ionic liquid N,N-disulfo-1,1,3,3-
tetramethylguanidinium chloride [DSTMG][Cl] with the respective metal chlorides in different mole fractions at 75 ºC.
The synthesis of 1,2-dihydro-1-aryl-3H-naphth[1,2-e][1,3]oxazin-3-ones was carried out via three-component reaction of
2-naphthol, aromatic aldehydes and urea under neat condition at 90 ºC using 7 mol% of the [DSTMG][FeCl4] catalyst.
Results:
The characterization of synthesized chlorometallates were done using spectroscopic and other analytical techniques including thermogravimetric analysis and Hammett acidity studies. Among the four salts, the salt of Fe(III) ion was
observed as the strong Brønsted acidic hydrophobic salt and thus chosen for the catalytic study.
Conclusion:
A new type of chlorometallates of guanidinium cation with composition [DSTMG]n[X], where X= FeCl4
-
/Zn2Cl6
2-/ NiCl4
2-/ MnCl4
2- and n= 1 or 2 were developed as –SO3H functionalized solid acids with varied thermal stability
(150-250 ºC) and physisorbed water (0-20%) as observed from the thermogravimetric study. From them, the most
Brønsted acidic Fe(III) salt was employed as efficient recyclable heterogeneous catalyst for the one-pot synthesis of 1,2-
dihydro-1-aryl-3H-naphth[1,2-e][1,3]oxazin-3-ones in neat condition.
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Affiliation(s)
- Arup Kumar Dutta
- Department of Chemistry, Pandit Deendayal Upadhyaya Adarsha Mahavidalaya, Behali, Assam, India
| | - Ruli Borah
- Department of Chemical Sciences, Tezpur University, Napaam-784028,Tezpur, India
| | - Kabita Boruah
- Department, Department of Chemical Sciences, Tezpur University , India
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19
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Kore R, Kelley SP, Sawant AD, Mishra MK, Rogers RD. Are ionic liquids and liquid coordination complexes really different? - Synthesis, characterization, and catalytic activity of AlCl 3/base catalysts. Chem Commun (Camb) 2020; 56:5362-5365. [PMID: 32285899 DOI: 10.1039/d0cc01452d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lewis acid/base catalysts of AlCl3/N-methyl-2-pyrrolidone (O-NMP) and AlCl3/1-methylimidazole (N-Mim) were prepared and found to have higher catalytic activity in the Friedel-Crafts alkylation of benzene than the known super acidic ionic liquid chloroaluminate [HN222][Al2Cl7] ([HN222]+ = triethylammonium). Crystals structures were obtained for AlCl3(N-Mim), [AlCl2(O-NMP)2][AlCl4], and [Al(O-NMP)6][AlCl4]3·(C6H6)3 supporting the assignments of neutral and charged catalytic species.
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Affiliation(s)
- Rajkumar Kore
- College of Arts & Sciences, The University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Steven P Kelley
- College of Arts & Sciences, The University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Anand D Sawant
- College of Arts & Sciences, The University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Manish Kumar Mishra
- College of Arts & Sciences, The University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Robin D Rogers
- College of Arts & Sciences, The University of Alabama, Tuscaloosa, AL 35487, USA. and 525 Solutions, Inc., P.O. Box 2206, Tuscaloosa, AL 35403, USA
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20
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Martin C, Cano I, Scé F, Pérez-Aguirre R, Gimbert-Suriñach C, Lopez-Cornejo P, de Pedro I. Synthesis of chiral iron-based ionic liquids: modelling stable hybrid materials. NEW J CHEM 2020. [DOI: 10.1039/d0nj00349b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A simple method to prepare asymmetric ionic liquids combining the optical, magnetic and Lewis acidic properties of [FeX4]− anions with the chirality of imidazolium cations.
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Affiliation(s)
- Carmen Martin
- Universidad de Cantabria
- CITIMAC
- Facultad de Ciencias
- Avda. de los Castros s/n
- 39005 Santander
| | - Israel Cano
- School of Chemistry
- University of Nottingham
- Nottingham
- UK
| | - Fabio Scé
- Universidad de Cantabria
- CITIMAC
- Facultad de Ciencias
- Avda. de los Castros s/n
- 39005 Santander
| | - Rubén Pérez-Aguirre
- Universidad del País Vasco
- Departamento de Química Inorgánica
- Facultad de Ciencia y Tecnología
- Apartado 644
- Bilbao
| | | | - Pilar Lopez-Cornejo
- Universidad de Sevilla
- Departamento de Química Física
- Facultad de Química
- c/Profesor García González s/n
- 41012 Sevilla
| | - Imanol de Pedro
- Universidad de Cantabria
- CITIMAC
- Facultad de Ciencias
- Avda. de los Castros s/n
- 39005 Santander
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21
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Li K, Choudhary H, Mishra MK, Rogers RD. Enhanced Acidity and Activity of Aluminum/Gallium-Based Ionic Liquids Resulting from Dynamic Anionic Speciation. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03132] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kai Li
- College of Arts & Sciences, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Hemant Choudhary
- College of Arts & Sciences, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Manish Kumar Mishra
- College of Arts & Sciences, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Robin D. Rogers
- College of Arts & Sciences, The University of Alabama, Tuscaloosa, Alabama 35487, United States
- 525 Solutions, Inc., P.O. Box 2206, Tuscaloosa, Alabama 35403, United States
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22
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Cot S, Leu MK, Kalamiotis A, Dimitrakis G, Sans V, de Pedro I, Cano I. An Oxalate‐Bridged Binuclear Iron(III) Ionic Liquid for the Highly Efficient Glycolysis of Polyethylene Terephthalate under Microwave Irradiation. Chempluschem 2019; 84:786-793. [DOI: 10.1002/cplu.201900075] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/08/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Sergi Cot
- Faculty of EngineeringUniversity of Nottingham Nottingham NG7 2RD United Kingdom
| | - Meike K. Leu
- GSK Carbon Neutral Laboratory for Sustainable ChemistryUniversity of Nottingham Nottingham NG7 2GA United Kingdom
| | - Alexis Kalamiotis
- Faculty of EngineeringUniversity of Nottingham Nottingham NG7 2RD United Kingdom
| | - Georgios Dimitrakis
- Faculty of EngineeringUniversity of Nottingham Nottingham NG7 2RD United Kingdom
| | - Victor Sans
- GSK Carbon Neutral Laboratory for Sustainable ChemistryUniversity of Nottingham Nottingham NG7 2GA United Kingdom
- Faculty of EngineeringUniversity of Nottingham Nottingham NG7 2RD United Kingdom
- Institute of Advanced Materials (INAM)Universitat Jaume I 12006 Castellon Spain
| | - Imanol de Pedro
- CITIMAC Facultad de CienciasUniversidad de Cantabria 39005 Santander Spain
| | - Israel Cano
- GSK Carbon Neutral Laboratory for Sustainable ChemistryUniversity of Nottingham Nottingham NG7 2GA United Kingdom
- School of ChemistryUniversity of Nottingham Nottingham NG7 2RD United Kingdom
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23
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Yu J, Wang Y, Zhao C, Chen S, Zhang S. A 3D molecular cantilever based on interfacial self-assembly and the cobra-like actuation of long-chain imidazolium ionic liquids. NANOSCALE 2019; 11:7277-7286. [PMID: 30932116 DOI: 10.1039/c8nr08824a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Cantilever structures usually function as a key building block in the construction of supramolecular systems. In this work, based on the controllable interfacial self-assembly of monolayer long-chain imidazolium ionic liquids (ILs) on multi-walled carbon nanotubes, we design a 3D molecular cantilever with advantages including facile assembly, multi-mechanism actuation and high scalability. Molecular dynamics simulations predict that the lifting of the cation alkyl chain as a cantilever possesses a cobra-like actuation mechanism, including structure-induced and environmental response effects, which is further verified via experimental observations. On one hand, regulating the internal alkyl chain units results in the regular variation of the cantilever tilt angle with respect to the surface; on the other hand, applying external electric fields with various strengths/directions can also drive the cantilever to rise or fall. As expected, the interfacial self-assembly structure of the molecular cantilever directionally induces a change in the phase transition behaviour, delivering significantly enhanced thermal stability for immobilized ILs compared with the bulk state.
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Affiliation(s)
- Jia Yu
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China.
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24
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Schroeter F, Soellner J, Strassner T. Tailored Palladate Tunable Aryl Alkyl Ionic Liquids (TAAILs). Chemistry 2019; 25:2527-2537. [DOI: 10.1002/chem.201804431] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Felix Schroeter
- Professur für Physikalische Organische ChemieTechnische Universität Dresden 01062 Dresden Germany
| | - Johannes Soellner
- Professur für Physikalische Organische ChemieTechnische Universität Dresden 01062 Dresden Germany
| | - Thomas Strassner
- Professur für Physikalische Organische ChemieTechnische Universität Dresden 01062 Dresden Germany
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25
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Pflieger R, Lejeune M, Noel C, Belmonte T, Nikitenko SI, Draye M. Diagnosing the plasma formed during acoustic cavitation in [BEPip][NTf 2] ionic liquid. Phys Chem Chem Phys 2018; 21:1183-1189. [PMID: 30548038 DOI: 10.1039/c8cp06967k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Sonoluminescence (SL) spectra of a very dry [BEPip][NTf2] ionic liquid were measured in the first minutes of sonication under Ar. The intense sonoluminescence allowed us to monitor the time-evolution of the SL spectra. Several molecular emissions were observed. Rovibronic temperatures of C2 and CN were determined giving vibrational temperatures of 5800 ± 500 K and 6000 ± 500 K and rotational temperatures (i.e. translational or gas temperatures) of 4000 ± 500 K. These temperatures stay remarkably constant during the sonolysis, while SL spectra undergo strong changes that illustrate the very fast evolution of the plasma during the first minutes of sonication. The expected strong decrease in the plasma electron energy also reflects in the evolution of the populations of CH electronically excited states. The physical meaning of temperatures derived from molecular emissions in SL spectra is discussed.
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Affiliation(s)
- Rachel Pflieger
- Institut de Chimie Séparative de Marcoule, ICSM UMR 5257 - CEA, CNRS, Univ Montpellier, ENSCM, Bagnols-sur-Cèze Cedex, France.
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26
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Mixed Chlorometallate Ionic Liquids as C4 Alkylation Catalysts: A Quantitative Study of Acceptor Properties. Catalysts 2018. [DOI: 10.3390/catal8110498] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The acceptor properties of mixed chlorometallate ionic liquids for isobutane-butene alkylation (C4 alkylation) reaction were studied. These ionic liquids were prepared by mixing metal chlorides with either triethylamine hydrochloride or 1-butyl-3-methylimidazolium chloride in various molar ratios. Using triethylphosphine oxide as a probe, Gutmann Acceptor Numbers (AN) of the catalysts were determined, and the Lewis acidity of mixed chlorometallate ionic liquids was quantitatively measured. Additionally, AN value was developed to determine the relationship between Lewis acidity and catalytic selectivity. The favorite AN value for the C4 alkylation reaction should be around 93.0. The [(C2H5)3NH]Cl–AlCl3−CuCl appears to be more Lewis acidity than that of [(C2H5)3NH]Cl–AlCl3. The correlation of the acceptor numbers to speciation of the mixed chlorometallate ionic liquids has also been investigated. [AlCl4]−, [Al2Cl7]−, and [MAlCl5]− (M = Cu, Ag) are the main anionic species of the mixed chlorometallate ILs. While the presence of [(C2H5)3N·M]+ cation always decreases the acidity of the [(C2H5)3NH]Cl−AlCl3−MCl ionic liquids.
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27
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Zhang H, Yu SS, Duan HB. A hybrid crystal with high dielectric constant and relaxation dielectric behavior. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2018.04.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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28
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González-Izquierdo P, Fabelo O, Beobide G, Vallcorba O, Sce F, Rodríguez Fernández J, Fernández-Díaz MT, de Pedro I. Magnetic Structure, Single-Crystal to Single-Crystal Transition, and Thermal Expansion Study of the (Edimim)[FeCl 4] Halometalate Compound. Inorg Chem 2018; 57:1787-1795. [PMID: 29393644 DOI: 10.1021/acs.inorgchem.7b02632] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This contribution addresses standing questions about the nature and consequences of the ion self-assembly and magnetic structures, as well as the molecular motion of the crystalline structure as a function of the temperature, in halometalate materials based on imidazolium cation. We present the magnetic structure and magnetostructural correlations of 1-ethyl-2,3-dimethylimidazolium tetrachloridoferrate, (Edimim)[FeCl4], resolved by neutron diffraction studies. Single-crystal, synchrotron powder X-ray diffraction and powder neutron diffraction techniques have been combined to follow the temperature evolution on its crystallographic structure from 2 K close to its melting point (340 K). In this sense, slightly above room temperature (307 K) (Edimim)[FeCl4] presents a single-crystal to single-crystal transition (SCSC), from phase I (space group P21/n) to phase II (P21/m), accompanied by a notable increase in the disorder of the imidazolium cation, as well as in the metal complex anion. The temperature evolution and solid-phase transitions of the presented compound were followed in detail by synchrotron X-ray powder diffraction (SXPD), which confirms the occurrence of another phase transition at 330 K, phase III (P21/m), the crystal structure of which was elucidated from the SXPD pattern. Moreover, this material presents an anisotropic thermal expansion with a switch from axial positive to negative thermal expansion coefficients as the temperature is raised above the first phase transition, which has been correlated with the molecular motion of the imidazolium-based molecules, producing not only a shortening of the counterion···counterion distances but also the occurrence of different quasi-isoenergetic crystal structures as a function of the temperature.
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Affiliation(s)
| | - Oscar Fabelo
- Institut Laue-Langevin , BP 156X, F-38042 Grenoble Cedex, France
| | - Garikoitz Beobide
- Departamento de Química Inorgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco , Apartado 644, E-48080 Bilbao, Spain
| | - Oriol Vallcorba
- ALBA Synchrotron Light Source , Cerdanyola del Vallés, Barcelona, Spain
| | - Fabio Sce
- CITIMAC, Facultad de Ciencias, Universidad de Cantabria , 39005 Santander, Spain
| | | | | | - Imanol de Pedro
- CITIMAC, Facultad de Ciencias, Universidad de Cantabria , 39005 Santander, Spain
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29
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Sarmah B, Kore R, Srivastava R. An efficient halometallate ionic liquid functionalized mesoporous ZSM-5 for the reduction of carbon–carbon multiple bonds. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00245b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bi-functional activity and highly dispersed active sites present in halometallate ionic liquid functionalized mesoporous ZSM-5 makes it a unique and superior catalyst compared to various other catalysts reported in the literature.
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Affiliation(s)
- Bhaskar Sarmah
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
| | - Rajkumar Kore
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
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30
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Kore R, Kelley SP, Aduri P, Rogers RD. Mixed metal double salt ionic liquids comprised of [HN222]2[ZnCl4] and AlCl3 provide tunable Lewis acid catalysts related to the ionic environment. Dalton Trans 2018; 47:7795-7803. [DOI: 10.1039/c8dt00976g] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tunable acidic mixed-metal double salt ionic liquids (DSILs), [HN222]2x[(1 − x)AlCl3 + xZnCl4], were prepared by mixing [HN222]2[ZnCl4] with AlCl3, and found to have unique and controllable catalytic activities.
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Affiliation(s)
- Rajkumar Kore
- Department of Chemistry
- The University of Alabama
- Tuscaloosa
- USA
| | | | | | - Robin D. Rogers
- Department of Chemistry
- The University of Alabama
- Tuscaloosa
- USA
- 525 Solutions
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