1
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Ferraz-Caetano J, Teixeira F, Cordeiro MNDS. Systematic Development of Vanadium Catalysts for Sustainable Epoxidation of Small Alkenes and Allylic Alcohols. Int J Mol Sci 2023; 24:12299. [PMID: 37569673 PMCID: PMC10418365 DOI: 10.3390/ijms241512299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 07/27/2023] [Accepted: 07/29/2023] [Indexed: 08/13/2023] Open
Abstract
The catalytic epoxidation of small alkenes and allylic alcohols includes a wide range of valuable chemical applications, with many works describing vanadium complexes as suitable catalysts towards sustainable process chemistry. But, given the complexity of these mechanisms, it is not always easy to sort out efficient examples for streamlining sustainable processes and tuning product optimization. In this review, we provide an update on major works of tunable vanadium-catalyzed epoxidations, with a focus on sustainable optimization routes. After presenting the current mechanistic view on vanadium catalysts for small alkenes and allylic alcohols' epoxidation, we argue the key challenges in green process development by highlighting the value of updated kinetic and mechanistic studies, along with essential computational studies.
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Affiliation(s)
- José Ferraz-Caetano
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, S/N, 4169-007 Porto, Portugal;
| | - Filipe Teixeira
- CQUM, Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal;
| | - Maria Natália Dias Soeiro Cordeiro
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, S/N, 4169-007 Porto, Portugal;
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2
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Mononuclear Oxidovanadium(IV) Complexes with BIAN Ligands: Synthesis and Catalytic Activity in the Oxidation of Hydrocarbons and Alcohols with Peroxides. Catalysts 2022. [DOI: 10.3390/catal12101168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Reactions of VCl3 with 1,2-Bis[(4-methylphenyl)imino]acenaphthene (4-Me-C6H4-bian) or 1,2-Bis[(2-methylphenyl)imino]acenaphthene (2-Me-C6H4-bian) in air lead to the formation of [VOCl2(R-bian)(H2O)] (R = 4-Me-C6H4 (1), 2-Me-C6H4 (2)). Thes complexes were characterized by IR and EPR spectroscopy as well as elemental analysis. Complexes 1 and 2 have high catalytic activity in the oxidation of hydrocarbons with hydrogen peroxide and alcohols with tert-butyl hydroperoxide in acetonitrile at 50 °С. The product yields are up to 40% for cyclohexane. Of particular importance is the addition of 2-pyrazinecarboxylic acid (PCA) as a co-catalyst. Oxidation proceeds mainly with the participation of free hydroxyl radicals, as evidenced by taking into account the regio- and bond-selectivity in the oxidation of n-heptane and methylcyclohexane, as well as the dependence of the reaction rate on the initial concentration of cyclohexane.
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3
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Romashev NF, Bakaev IV, Komlyagina VI, Sokolov MN, Gushchin AL. SYNTHESIS AND STRUCTURE OF PALLADACYCLOPENTADIENYL COMPLEX WITH ACENAPHTHENE-1,2-DIIMINE LIGAND. J STRUCT CHEM+ 2022. [DOI: 10.1134/s002247662208011x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Adam MSS, Shaaban S, El‐Metwaly NM. Two ionic oxo‐vanadate and dioxo‐molybdate complexes of dinitro‐aroylhydazone derivative: effective catalysts towards epoxidation reactions, biological activity,
ct
DNA binding, DFT and
silico
investigations. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mohamed Shaker S. Adam
- Department of Chemistry College of Science, King Faisal University Al‐Ahsa Saudi Arabia
- Department of Chemistry, Faculty of Science Sohag University Sohag Egypt
| | - Saad Shaaban
- Department of Chemistry College of Science, King Faisal University Al‐Ahsa Saudi Arabia
- Department of Chemistry, Faculty of Science Mansoura University Mansoura Egypt
| | - Nashwa M. El‐Metwaly
- Department of Chemistry, Faculty of Science Mansoura University Mansoura Egypt
- Department of Chemistry, Faculty of Applied Science Umm Al Qura University Makkah Saudi Arabia
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5
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Romashev NF, Mirzaeva IV, Bakaev IV, Komlyagina VI, Komarov VY, Fomenko IS, Gushchin AL. STRUCTURE OF A BINUCLEAR RHODIUM(I) COMPLEX WITH THE ACENAPHTHENE- 1,2-DIIMINE LIGAND. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622020056] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Nickel (II), copper (II), and vanadyl (II) complexes with tridentate nicotinoyl hydrazone derivative functionalized as effective catalysts for epoxidation processes and as biological reagents. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2021.104192] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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7
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Bernauer J, Pölker J, Jacobi von Wangelin A. Redox‐active BIAN‐based Diimine Ligands in Metal‐Catalyzed Small Molecule Syntheses**. ChemCatChem 2021; 14:e202101182. [PMID: 35875682 PMCID: PMC9298226 DOI: 10.1002/cctc.202101182] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/24/2021] [Indexed: 12/14/2022]
Abstract
α‐Diimine ligands have significantly shaped the coordination chemistry of most transition metal complexes. Among them, bis(imino)acenaphthene ligands (BIANs) have recently been matured to great versatility and applicability to catalytic reactions. Besides variations of the ligand periphery, the great versatility of BIAN ligands resides within their ability to undergo facile electronic manipulations. This review highlights key aspects of BIAN ligands in metal complexes and summarizes recent contributions of metal‐BIAN catalysts to syntheses of small and functionalized organic molecules.
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Affiliation(s)
- Josef Bernauer
- Department of Chemistry University of Hamburg Martin Luther King Pl 6 20146 Hamburg Germany
| | - Jennifer Pölker
- Department of Chemistry University of Hamburg Martin Luther King Pl 6 20146 Hamburg Germany
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8
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Claveau EE, Miliordos E. Electronic structure of the dicationic first row transition metal oxides. Phys Chem Chem Phys 2021; 23:21172-21182. [PMID: 34528643 DOI: 10.1039/d1cp02492b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multi-reference electronic structure calculations combined with large basis sets are performed to investigate the electronic structure of the ground and low-lying electronic states of the MO2+ diatomic species with M = Ti-Cu. These systems have shown high efficiency in the activation of the C-H of saturated hydrocarbons. This study is the first systematic and accurate work for these systems and our results and discussion provides insights into the reactivity and stability of MO2+ units. We find that they can be divided in three groups. The early transition metals (Ti, V, Cr) have very stable and well separated oxo (M4+O2-) character ground states, the middle transition metals (Mn, Fe) have oxyl (M3+O˙-) ground states with low-lying oxo excited states, and the late transition metals (Co, Ni, Cu) have well separated oxyl states. The reported spectroscopic constants will aid future experimental investigations, which are sparse in the literature. Periodic trends for the bond lengths, energetics, excitation energies, and wavefunction composition are discussed in detail. Complete basis set limit results indicate the high accuracy of the quintuple-ζ basis sets.
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Affiliation(s)
- Emily E Claveau
- Department of Chemistry and Biochemistry, Auburn University, Auburn, AL 36849-5312, USA.
| | - Evangelos Miliordos
- Department of Chemistry and Biochemistry, Auburn University, Auburn, AL 36849-5312, USA.
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9
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New Cu(II) and VO(II)-O,N,O-aroylhydrazone complexes: Biological evaluation, catalytic performance, ctDNA interaction, DFT, pharmacophore, and docking simulation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116554] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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10
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Adam MSS, Abdel-Rahman LH, Ahmed HES, Makhlouf M, Alhasani M, El-Metwaly NM. Enhanced catalytic (ep)oxidation of olefins by VO(II), ZrO(II) and Zn(II)-imine complexes; extensive characterization supported by DFT studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130295] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Adam MSS, Makhlouf M, Ullah F, El-Hady OM. Mononucleating nicotinohydazone complexes with VO2+, Cu2+, and Ni2+ ions. Characteristic, catalytic, and biological assessments. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116001] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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12
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Taylor J, Culpeck R, Chippindale AM, Calhorda MJ, Hartl F. Effect of the 2-R-Allyl and Chloride Ligands on the Cathodic Paths of [Mo(η 3-2-R-allyl)(α-diimine)(CO) 2Cl] (R = H, CH 3; α-diimine = 6,6'-Dimethyl-2,2'-bipyridine, Bis( p-tolylimino)acenaphthene). Organometallics 2021; 40:1598-1613. [PMID: 34295012 PMCID: PMC8289335 DOI: 10.1021/acs.organomet.1c00038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Indexed: 11/28/2022]
Abstract
The new, formally Mo(II) complexes [Mo(η3-2-R-allyl)(6,6'-dmbipy)(CO)2Cl] (6,6'-dmbipy = 6,6'-dimethyl-2,2'-bipyridine; 2-R-allyl = allyl for R = H, 2-methallyl for R = CH3) and [Mo(η3-2-methallyl)(pTol-bian)(CO)2Cl] (pTol-bian = bis(p-tolylimino)acenaphthene) share, in this rare case, the same structural type. The effect of the anionic π-donor ligand X (Cl- vs NCS-) and the 2-R-allyl substituents on the cathodic behavior was explored. Both ligands play a significant role at all stages of the reduction path. While 2e--reduced [Mo(η3-allyl)(6,6'-dmbipy)(CO)2]- is inert when it is ECE-generated from [Mo(η3-allyl)(6,6'-dmbipy)(CO)2(NCS)], the Cl- ligand promotes Mo-Mo dimerization by facilitating the nucleophilic attack of [Mo(η3-allyl)(6,6'-dmbipy)(CO)2]- at the parent complex at ambient temperature. The replacement of the allyl ligand by 2-methallyl has a similar effect. The Cl-/2-methallyl ligand assembly destabilizes even primary radical anions of the complex containing the strongly π-accepting pTol-Bian ligand. Under argon, the cathodic paths of [Mo(η3-2-R-allyl)(6,6'-dmbipy)(CO)2Cl] terminate at ambient temperature with 5-coordinate [Mo(6,6'-dmbipy)(CO)3]2- instead of [Mo(η3-2-R-allyl)(6,6'-dmbipy)(CO)2]-, which is stabilized in chilled electrolyte. [Mo(η3-allyl)(6,6'-dmbipy)(CO)2]- catalyzes CO2 reduction only when it is generated at the second cathodic wave of the parent complex, while [Mo(η3-2-methallyl)(6,6'-dmbipy)(CO)2]- is already moderately active at the first cathodic wave. This behavior is fully consistent with absent dimerization under argon on the cyclic voltammetric time scale. The electrocatalytic generation of CO and formate is hampered by the irreversible formation of anionic tricarbonyl complexes replacing reactive [Mo(η3-2-methallyl)(6,6'-dmbipy)(CO)2]2 along the cathodic route.
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Affiliation(s)
- James
O. Taylor
- Department
of Chemistry, University of Reading, Reading RG6 6DX, United Kingdom
| | - Ryan Culpeck
- Department
of Chemistry, University of Reading, Reading RG6 6DX, United Kingdom
| | - Ann M. Chippindale
- Department
of Chemistry, University of Reading, Reading RG6 6DX, United Kingdom
| | - Maria José Calhorda
- BioISI-Biosystems
& Integrative Sciences Institute, Departamento de Química
e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, Portugal
| | - František Hartl
- Department
of Chemistry, University of Reading, Reading RG6 6DX, United Kingdom
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13
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Chen H, Liu W, Laemont A, Krishnaraj C, Feng X, Rohman F, Meledina M, Zhang Q, Van Deun R, Leus K, Van Der Voort P. A Visible-Light-Harvesting Covalent Organic Framework Bearing Single Nickel Sites as a Highly Efficient Sulfur-Carbon Cross-Coupling Dual Catalyst. Angew Chem Int Ed Engl 2021; 60:10820-10827. [PMID: 33538391 DOI: 10.1002/anie.202101036] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Indexed: 01/04/2023]
Abstract
Covalent Organic Frameworks (COFs) have recently emerged as light-harvesting devices, as well as elegant heterogeneous catalysts. The combination of these two properties into a dual catalyst has not yet been explored. We report a new photosensitive triazine-based COF, decorated with single Ni sites to form a dual catalyst. This crystalline and highly porous catalyst shows excellent catalytic performance in the visible-light-driven catalytic sulfur-carbon cross-coupling reaction. Incorporation of single transition metal sites in a photosensitive COF scaffold with two-component synergistic catalyst in organic transformation is demonstrated for the first time.
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Affiliation(s)
- Hui Chen
- COMOC-Center for Ordered Materials, Organometallics and Catalysis, Department of Chemistry, Ghent University, Krijgslaan 281-S3, 9000, Ghent, Belgium
| | - Wanlu Liu
- COMOC-Center for Ordered Materials, Organometallics and Catalysis, Department of Chemistry, Ghent University, Krijgslaan 281-S3, 9000, Ghent, Belgium.,L3-Luminescent Lanthanide Lab., Department of Chemistry, Ghent University, Krijgslaan 281-S3, 9000, Ghent, Belgium
| | - Andreas Laemont
- COMOC-Center for Ordered Materials, Organometallics and Catalysis, Department of Chemistry, Ghent University, Krijgslaan 281-S3, 9000, Ghent, Belgium
| | - Chidharth Krishnaraj
- COMOC-Center for Ordered Materials, Organometallics and Catalysis, Department of Chemistry, Ghent University, Krijgslaan 281-S3, 9000, Ghent, Belgium
| | - Xiao Feng
- COMOC-Center for Ordered Materials, Organometallics and Catalysis, Department of Chemistry, Ghent University, Krijgslaan 281-S3, 9000, Ghent, Belgium
| | - Fadli Rohman
- RWTH Aachen University, Central Facility for Electron Microscopy, 52074, Aachen, Germany
| | - Maria Meledina
- RWTH Aachen University, Central Facility for Electron Microscopy, 52074, Aachen, Germany.,Forschungszentrum Jülich GmbH, Ernst Ruska-Centre (ER-C 2), 52425, Jülich, Germany
| | - Qiqi Zhang
- TJU-NIMS International Collaboration Laboratory, School of Materials Science and Engineering, Tianjin University, No. 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China
| | - Rik Van Deun
- L3-Luminescent Lanthanide Lab., Department of Chemistry, Ghent University, Krijgslaan 281-S3, 9000, Ghent, Belgium
| | - Karen Leus
- COMOC-Center for Ordered Materials, Organometallics and Catalysis, Department of Chemistry, Ghent University, Krijgslaan 281-S3, 9000, Ghent, Belgium
| | - Pascal Van Der Voort
- COMOC-Center for Ordered Materials, Organometallics and Catalysis, Department of Chemistry, Ghent University, Krijgslaan 281-S3, 9000, Ghent, Belgium
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14
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Chen H, Liu W, Laemont A, Krishnaraj C, Feng X, Rohman F, Meledina M, Zhang Q, Van Deun R, Leus K, Van Der Voort P. A Visible‐Light‐Harvesting Covalent Organic Framework Bearing Single Nickel Sites as a Highly Efficient Sulfur–Carbon Cross‐Coupling Dual Catalyst. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101036] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hui Chen
- COMOC-Center for Ordered Materials, Organometallics and Catalysis Department of Chemistry Ghent University Krijgslaan 281-S3 9000 Ghent Belgium
| | - Wanlu Liu
- COMOC-Center for Ordered Materials, Organometallics and Catalysis Department of Chemistry Ghent University Krijgslaan 281-S3 9000 Ghent Belgium
- L3-Luminescent Lanthanide Lab. Department of Chemistry Ghent University Krijgslaan 281-S3 9000 Ghent Belgium
| | - Andreas Laemont
- COMOC-Center for Ordered Materials, Organometallics and Catalysis Department of Chemistry Ghent University Krijgslaan 281-S3 9000 Ghent Belgium
| | - Chidharth Krishnaraj
- COMOC-Center for Ordered Materials, Organometallics and Catalysis Department of Chemistry Ghent University Krijgslaan 281-S3 9000 Ghent Belgium
| | - Xiao Feng
- COMOC-Center for Ordered Materials, Organometallics and Catalysis Department of Chemistry Ghent University Krijgslaan 281-S3 9000 Ghent Belgium
| | - Fadli Rohman
- RWTH Aachen University Central Facility for Electron Microscopy 52074 Aachen Germany
| | - Maria Meledina
- RWTH Aachen University Central Facility for Electron Microscopy 52074 Aachen Germany
- Forschungszentrum Jülich GmbH Ernst Ruska-Centre (ER-C 2) 52425 Jülich Germany
| | - Qiqi Zhang
- TJU-NIMS International Collaboration Laboratory School of Materials Science and Engineering Tianjin University No. 92 Weijin Road, Nankai District Tianjin 300072 P. R. China
| | - Rik Van Deun
- L3-Luminescent Lanthanide Lab. Department of Chemistry Ghent University Krijgslaan 281-S3 9000 Ghent Belgium
| | - Karen Leus
- COMOC-Center for Ordered Materials, Organometallics and Catalysis Department of Chemistry Ghent University Krijgslaan 281-S3 9000 Ghent Belgium
| | - Pascal Van Der Voort
- COMOC-Center for Ordered Materials, Organometallics and Catalysis Department of Chemistry Ghent University Krijgslaan 281-S3 9000 Ghent Belgium
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15
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Moskalev MV, Razborov DA, Skatova AA, Bazanov AA, Fedushkin IL. Alkali Metal Reduction of 1,2‐Bis[(2,6‐dibenzhydryl‐4‐methylphenyl)imino]acenaphthene (Ar
BIG
‐bian) to Radical‐Anion. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202000909] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Mikhail V. Moskalev
- G.A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences Tropinina Str. 49 603137 Nizhny Novgorod Russian Federation
| | - Danila A. Razborov
- G.A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences Tropinina Str. 49 603137 Nizhny Novgorod Russian Federation
| | - Alexandra A. Skatova
- G.A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences Tropinina Str. 49 603137 Nizhny Novgorod Russian Federation
| | - Andrey A. Bazanov
- G.A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences Tropinina Str. 49 603137 Nizhny Novgorod Russian Federation
| | - Igor L. Fedushkin
- G.A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences Tropinina Str. 49 603137 Nizhny Novgorod Russian Federation
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16
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Jamali MA, Arvani A, Amini MM. Vanadium Containing Metal‐organic Frameworks as Highly Efficient Catalysts for the Oxidation of Refractory Aromatic Sulfur Compounds. ChemCatChem 2020. [DOI: 10.1002/cctc.202001327] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Marjan Abdi Jamali
- Department of Inorganic chemistry and Catalysis Shahid Beheshti University Tehran 1983969411 Iran
| | - Alireza Arvani
- Department of Inorganic chemistry and Catalysis Shahid Beheshti University Tehran 1983969411 Iran
| | - Mostafa M. Amini
- Department of Inorganic chemistry and Catalysis Shahid Beheshti University Tehran 1983969411 Iran
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17
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Abboud M, Al-Zaqri N, Sahlabji T, Eissa M, Mubarak AT, Bel-Hadj-Tahar R, Alsalme A, Alharthi FA, Alsyahi A, Hamdy MS. Instant and quantitative epoxidation of styrene under ambient conditions over a nickel(ii)dibenzotetramethyltetraaza[14]annulene complex immobilized on amino-functionalized SBA-15. RSC Adv 2020; 10:35407-35418. [PMID: 35515658 PMCID: PMC9056905 DOI: 10.1039/d0ra07244c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 09/15/2020] [Indexed: 11/21/2022] Open
Abstract
Nickel(ii)dibenzotetramethyltetraaza[14]annulene complex (Nitmtaa) was synthetized and immobilized on post amino-functionalized SBA-15 (N-SBA-15) to obtain a stable and reusable nanocatalyst named as Nitmtaa@N-SBA-15. Here (3-aminopropyl)triethoxysilane (APTES) was first grafted on the surface SBA-15, then Nitmtaa was added and coordinated on the silica surface via APTES amine groups. The structure and morphology, and thermal stability of the prepared nanocatalyst was investigated using SEM, HR-TEM, BET, FT-IR, powder XRD, and TGA. HR-TEM and XRD results revealed a high dispersion of Nitmtaa on the SBA-15 surface. The catalytic activity of this nanocatalyst was evaluated in the epoxidation of styrene, under ambient conditions, using meta-chloroperoxybenzoic acid (m-CPBA) as the oxygen donor. This nanocatalyst showed an immediate and quantitative epoxidation of styrene with high turn-over-frequency ∼31.58 s−1. Moreover, the superior catalytic activity and high stability of Nitmtaa@N-SBA-15 could be maintained after four successive cycles. A possible reaction mechanism is also proposed. Immediate and quantitative epoxidation of styrene under ambient conditions catalyzed by new nanocatalyst obtained by immobilizing nickel(ii)dibenzotetramethyltetraaza[14]annulene in amino-functionalized SBA-15.![]()
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Affiliation(s)
- Mohamed Abboud
- Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University P.O. Box 9004 Abha 61413 Saudi Arabia +966 53 48 46 782
| | - Nabil Al-Zaqri
- Department of Chemistry, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Taher Sahlabji
- Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University P.O. Box 9004 Abha 61413 Saudi Arabia +966 53 48 46 782
| | - Murad Eissa
- Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University P.O. Box 9004 Abha 61413 Saudi Arabia +966 53 48 46 782
| | - Ahmed T Mubarak
- Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University P.O. Box 9004 Abha 61413 Saudi Arabia +966 53 48 46 782
| | - Radhouane Bel-Hadj-Tahar
- Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University P.O. Box 9004 Abha 61413 Saudi Arabia +966 53 48 46 782.,Photovoltaic Laboratory, Research and Technology Center of Energy, Borj-Cedria Science and Technology Park BP 95 2050 Hammam-Lif Tunisia
| | - Ali Alsalme
- Department of Chemistry, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Fahad A Alharthi
- Department of Chemistry, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Amjad Alsyahi
- Department of Chemistry, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Mohamed S Hamdy
- Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University P.O. Box 9004 Abha 61413 Saudi Arabia +966 53 48 46 782
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18
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Adam MSS, Al‐Omair MA. Nanocomposite‐based inorganic‐organocatalyst Cu(II) complex and SiO
2
‐ and Fe
3
O
4
nanoparticles as low‐cost and efficient catalysts for aniline and 2‐aminopyridine oxidation. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5999] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Mohamed Shaker S. Adam
- Department of Chemistry, College of Science King Faisal University PO Box 400 Al‐Ahsa 31982 Saudi Arabia
- Chemistry Department, Faculty of Science Sohag University 82534 Sohag Egypt
| | - Mohammed A. Al‐Omair
- Department of Chemistry, College of Science King Faisal University PO Box 400 Al‐Ahsa 31982 Saudi Arabia
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19
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Synthesis, properties, and catalysis of p-block complexes supported by bis(arylimino)acenaphthene ligands. Commun Chem 2020; 3:113. [PMID: 36703406 PMCID: PMC9814787 DOI: 10.1038/s42004-020-00359-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 07/06/2020] [Indexed: 01/29/2023] Open
Abstract
Bis(arylimino)acenaphthene (Ar-BIAN) ligands have been recognized as robust scaffolds for metal complexes since the 1990 s and most of their coordination chemistry was developed with transition metals. Notably, there have been relatively few reports on complexes comprising main group elements, especially those capitalizing on the redox non-innocence of Ar-BIAN ligands supporting p-block elements. Here we present an overview of synthetic approaches to Ar-BIAN ligands and their p-block complexes using conventional solution-based methodologies and environmentally-benign mechanochemical routes. This is followed by a discussion on their catalytic properties, including comparisons to transition metal counterparts, as well as key structural and electronic properties of p-block Ar-BIAN complexes.
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Fomenko IS, Gushchin AL. Mono- and binuclear complexes of group 5 metals with diimine ligands: synthesis, reactivity and prospects for application. RUSSIAN CHEMICAL REVIEWS 2020. [DOI: 10.1070/rcr4949] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Mashima K. Redox-Active α-Diimine Complexes of Early Transition Metals: From Bonding to Catalysis. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200056] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Kazushi Mashima
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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22
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Romashev NF, Gushchin AL, Fomenko IS, Abramov PA, Mirzaeva IV, Kompan'kov NB, Kal'nyi DB, Sokolov MN. A new organometallic rhodium(I) complex with dpp-bian ligand: Synthesis, structure and redox behaviour. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.114110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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Hiller M, Sittel T, Wadepohl H, Enders M. A New Class of Lanthanide Complexes with Three Ligand Centered Radicals: NMR Evaluation of Ligand Field Energy Splitting and Magnetic Coupling. Chemistry 2019; 25:10668-10677. [PMID: 31050369 DOI: 10.1002/chem.201901388] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Indexed: 11/09/2022]
Abstract
Combination of three radical anionic Ph-BIAN ligands (Ph-BIAN=bis-(phenylimino)-acenaphthenequinone) with lanthanoid ions leads to a series of homoleptic, six-coordinate complexes of the type Ln(Ph-BIAN)3 . Magnetic coupling data were measured by paramagnetic solution NMR spectroscopy. Combining 1 H NMR with 2 H NMR of partially deuterated compounds allowed a detailed study of the magnetic susceptibility anisotropies over a large temperature range. The observed chemical shifts were separated into ligand- and metal-centered contributions by comparison with the Y analogue (diamagnetic at the metal). The metal-centered contributions of the complexes with the paramagnetic ions could then be separated into pseudocontact and Fermi contact shifts. The latter is large within the Ph-BIAN scaffold, which shows that magnetic coupling is significant between the lanthanide ion and the radical ligand. Pseudocontact shifts were further correlated to structural data obtained from X-ray diffraction experiments. Ligand-field parameters were determined by fitting the temperature dependence of the observed magnetic susceptibility anisotropies. The electronic structure determined by this approach shows, that the Er and Tm analogues are candidates for single molecule magnets (SMM). These results demonstrate the possibilities for the application of NMR spectroscopy in investigations of paramagnetic systems in general and single molecule magnets in particular.
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Affiliation(s)
- Markus Hiller
- Institute of Inorganic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Thomas Sittel
- Institute of Inorganic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Hubert Wadepohl
- Institute of Inorganic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Markus Enders
- Institute of Inorganic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
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24
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Quintal S, Pires da Silva MJ, Martins SRM, Sales R, Félix V, Drew MGB, Meireles M, Mourato AC, Nunes CD, Saraiva MS, Machuqueiro M, Calhorda MJ. Molybdenum(ii) complexes with p-substituted BIAN ligands: synthesis, characterization, biological activity and computational study. Dalton Trans 2019; 48:8449-8463. [PMID: 31116201 DOI: 10.1039/c9dt00469f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New complexes [Mo(η3-C3H5)X(CO)2(4-Y-BIAN)] (4-Y-BIAN = bis(4-Y-phenyl)-acenaphthenequinonediimine), with X = Br and Y = H, Me, OMe, COOH and X = Cl, Y = OMe, as well as the cation with X = NCMe and Y = OMe were synthesized, expanding the scope of this family. Two single crystal X-ray structures (X = Br, Y = Me, OMe) display a less symmetric arrangement (axial isomer), where one N donor atom is trans to the allyl group and the second to one CO. DFT studies showed similar energies for the two possible isomers of the complexes, with a very small preference for the observed axial isomer. The HOMO of the complexes is localized in the metal and the HOMO-1 of the oxidized species has a contribution from the BIAN ligand, while the LUMO is fully localized in BIAN. Electrochemical studies showed one process corresponding to the oxidation of Mo(ii) to Mo(iii) for complexes with X = Br, Y = H, Me, and two oxidation reactions for those with X = Br, Y = Cl, OMe, while the COOH derivative exhibited no oxidation wave. The antitumor effect of the complexes with X = Br was tested in cancer lines, and the H and OMe complexes were particularly active, with EC50 values below 8 μM in HeLa cell lines. The DNA binding constants determined by titration experiments were comparable with those of doxorubicin and ethidium bromide, suggesting a mechanism of action based on intercalation in DNA.
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Affiliation(s)
- Susana Quintal
- Centro de Química e Bioquímica, DQB, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
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25
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Catalytic comparison of various polar Zn(II)-Schiff base complexes and VO(II)-Schiff base complexes in (ep)oxidation processes of 1,2-cyclohexene and cyclohexane. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03855-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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26
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Munoz G, Gunessee BK, Bégué D, Bouyssiere B, Baraille I, Vallverdu G, Santos Silva H. Redox activity of nickel and vanadium porphyrins: a possible mechanism behind petroleum genesis and maturation? RSC Adv 2019; 9:9509-9516. [PMID: 35520708 PMCID: PMC9062163 DOI: 10.1039/c9ra01104h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 03/13/2019] [Indexed: 11/24/2022] Open
Abstract
The presence of metalloporphyrins in crude oil has been known for many years. In contrast, their role on the physical-chemical properties is only now beginning to be understood. In this study, we test using high-level ab initio calculations, the hypothesis of a possible redox catalytic activity of vanadium and nickel metalloporphyrins in crude oil, illustrated by the oxidation of methanol to formaldehyde and hydrogen dissociation, respectively. This process which may take place during petroleum genesis and maturation, explains some of its physical-chemical properties, such as polar chains, the absence of alcohols, the trapping of porphyrins within macromolecular aggregates.
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Affiliation(s)
- G Munoz
- CNRS/Univ Pau & Pays Adour, Institut des Science Analytiques et Physico-Chimie pour l'Environnement et les Materiaux, UMR 5254 64000 Pau France
| | - B K Gunessee
- CNRS/Univ Pau & Pays Adour, Institut des Science Analytiques et Physico-Chimie pour l'Environnement et les Materiaux, UMR 5254 64000 Pau France
| | - D Bégué
- CNRS/Univ Pau & Pays Adour, Institut des Science Analytiques et Physico-Chimie pour l'Environnement et les Materiaux, UMR 5254 64000 Pau France
| | - B Bouyssiere
- CNRS/Univ Pau & Pays Adour, Institut des Science Analytiques et Physico-Chimie pour l'Environnement et les Materiaux, UMR 5254 64000 Pau France
| | - I Baraille
- CNRS/Univ Pau & Pays Adour, Institut des Science Analytiques et Physico-Chimie pour l'Environnement et les Materiaux, UMR 5254 64000 Pau France
| | - G Vallverdu
- CNRS/Univ Pau & Pays Adour, Institut des Science Analytiques et Physico-Chimie pour l'Environnement et les Materiaux, UMR 5254 64000 Pau France
| | - H Santos Silva
- CNRS/Univ Pau & Pays Adour, Institut des Science Analytiques et Physico-Chimie pour l'Environnement et les Materiaux, UMR 5254 64000 Pau France
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Environmental friendly method of the epoxidation of limonene with hydrogen peroxide over the Ti-SBA-15 catalyst. POLISH JOURNAL OF CHEMICAL TECHNOLOGY 2019. [DOI: 10.2478/pjct-2018-0047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Abstract
This work presents the studies on the epoxidation of limonene to 1,2-epoxylimonene with hydrogen peroxide and over the titanium-silicate Ti-SBA-15 catalyst. The main object of the research was a solvent effect on the epoxidation process. The influence of solvents, such as: methanol, toluene, propan-2-ol (isopropyl alcohol), acetonitrile and ethanol has been studied. Furthermore, the influence of temperature in the range of 0-120°C and the reaction time in the range of 0.25-48 h have been investigated. Gas chromatography and iodometric titration methods were used to establish the products of this process and amount of the unreacted hydrogen peroxide. 1,2-Epoxylimonene, 1,2-epoxylimonene diol, perillyl alcohol, carvone and carveol have been determined as the main products of this process. All these compounds are very valuable raw materials for organic syntheses, medicine or cosmetic and food industry.
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28
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Langeslay RR, Kaphan DM, Marshall CL, Stair PC, Sattelberger AP, Delferro M. Catalytic Applications of Vanadium: A Mechanistic Perspective. Chem Rev 2018; 119:2128-2191. [PMID: 30296048 DOI: 10.1021/acs.chemrev.8b00245] [Citation(s) in RCA: 203] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The chemistry of vanadium has seen remarkable activity in the past 50 years. In the present review, reactions catalyzed by homogeneous and supported vanadium complexes from 2008 to 2018 are summarized and discussed. Particular attention is given to mechanistic and kinetics studies of vanadium-catalyzed reactions including oxidations of alkanes, alkenes, arenes, alcohols, aldehydes, ketones, and sulfur species, as well as oxidative C-C and C-O bond cleavage, carbon-carbon bond formation, deoxydehydration, haloperoxidase, cyanation, hydrogenation, dehydrogenation, ring-opening metathesis polymerization, and oxo/imido heterometathesis. Additionally, insights into heterogeneous vanadium catalysis are provided when parallels can be drawn from the homogeneous literature.
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Affiliation(s)
- Ryan R Langeslay
- Chemical Sciences & Engineering Division , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | - David M Kaphan
- Chemical Sciences & Engineering Division , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | - Christopher L Marshall
- Chemical Sciences & Engineering Division , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | - Peter C Stair
- Chemical Sciences & Engineering Division , Argonne National Laboratory , Argonne , Illinois 60439 , United States.,Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Alfred P Sattelberger
- Chemical Sciences & Engineering Division , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | - Massimiliano Delferro
- Chemical Sciences & Engineering Division , Argonne National Laboratory , Argonne , Illinois 60439 , United States
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29
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Gomes AC, Antunes MM, Abrantes M, Valente AA, Paz FAA, Gonçalves IS, Pillinger M. An Organotin Vanadate with Sodalite Topology and Catalytic Versatility in Oxidative Transformations. ChemCatChem 2018. [DOI: 10.1002/cctc.201800477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ana C. Gomes
- Department of Chemistry, CICECO Aveiro Institute of Materials; University of Aveiro; Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - Margarida M. Antunes
- Department of Chemistry, CICECO Aveiro Institute of Materials; University of Aveiro; Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - Marta Abrantes
- Centro de Química Estrutural Complexo Interdisciplinar, Instituto Superior Técnico; Universidade Técnica de Lisboa; Av. Rovisco Pais, 1 1049-001 Lisbon Portugal
- Present address: KIC InnoEnergy - International Affairs Office Instituto Superior Técnico; Universidade Técnica de Lisboa; Av. Duque de Ávila, 23-1° Esq. 1000-138 Lisbon Portugal
| | - Anabela A. Valente
- Department of Chemistry, CICECO Aveiro Institute of Materials; University of Aveiro; Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - Filipe A. Almeida Paz
- Department of Chemistry, CICECO Aveiro Institute of Materials; University of Aveiro; Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - Isabel S. Gonçalves
- Department of Chemistry, CICECO Aveiro Institute of Materials; University of Aveiro; Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - Martyn Pillinger
- Department of Chemistry, CICECO Aveiro Institute of Materials; University of Aveiro; Campus Universitário de Santiago 3810-193 Aveiro Portugal
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30
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Ghorbanloo M, Bikas R, Jafari S, Krawczyk MS, Lis T. Synthesis, structural characterization and catalytic potential of oxidovanadium(IV) and dioxidovanadium(V) complexes with thiazole-derived NNN-donor ligand. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1465941] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
| | - Rahman Bikas
- Faculty of Science, Department of Chemistry, Imam Khomeini International University, Qazvin, Iran
| | - Solmaz Jafari
- Department of Chemistry, University of Zanjan, Zanjan, Iran
| | - Marta S. Krawczyk
- Faculty of Pharmacy, Department of Analytical Chemistry, Wroclaw Medical University, Wroclaw, Poland
| | - Tadeusz Lis
- Faculty of Chemistry, University of Wroclaw, Wroclaw, Poland
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31
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Catalytic performance of binary and ternary oxovanadium complexes of dipyridinyl-urea in (ep)oxidation of cis-cyclooctene and 1-octene. REACTION KINETICS MECHANISMS AND CATALYSIS 2018. [DOI: 10.1007/s11144-018-1399-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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32
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Fomenko IS, Gushchin AL, Shul’pina LS, Ikonnikov NS, Abramov PA, Romashev NF, Poryvaev AS, Sheveleva AM, Bogomyakov AS, Shmelev NY, Fedin MV, Shul’pin GB, Sokolov MN. New oxidovanadium(iv) complex with a BIAN ligand: synthesis, structure, redox properties and catalytic activity. NEW J CHEM 2018. [DOI: 10.1039/c8nj03358g] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The combination of a new oxidovanadium(iv) complex1with pyrazine-2-carboxylic acid (PCA; a cocatalyst) affords a catalytic system for the efficient oxidation of saturated hydrocarbons.
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Affiliation(s)
- Iakov S. Fomenko
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russia
| | - Artem L. Gushchin
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | - Lidia S. Shul’pina
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Nikolay S. Ikonnikov
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Pavel A. Abramov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russia
| | - Nikolay F. Romashev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | - Artem S. Poryvaev
- Novosibirsk State University
- 630090 Novosibirsk
- Russia
- International Tomography Center, Siberian Branch of Russian Academy of Sciences
- 630090 Novosibirsk
| | - Alena M. Sheveleva
- Novosibirsk State University
- 630090 Novosibirsk
- Russia
- International Tomography Center, Siberian Branch of Russian Academy of Sciences
- 630090 Novosibirsk
| | - Artem S. Bogomyakov
- International Tomography Center, Siberian Branch of Russian Academy of Sciences
- 630090 Novosibirsk
- Russia
| | - Nikita Y. Shmelev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | - Matvey V. Fedin
- International Tomography Center, Siberian Branch of Russian Academy of Sciences
- 630090 Novosibirsk
- Russia
| | - Georgiy B. Shul’pin
- Department of Dynamics of Chemical and Biologicl Processes, Semenov Institute of Chemical Physics, Russian Academy of Sciences
- Moscow 119991
- Russia
- Chair of Chemistry and Physics, Plekhanov Russian University of Economics
- Moscow 117997
| | - Maxim N. Sokolov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
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33
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Thakur S, Roy S, Bauzá A, Frontera A, Chattopadhyay S. Estimation of non-covalent C H⋯π, π⋯π (chelate ring) and hydrogen bonding interactions in vanadium(V) Schiff base complexes: Methylene spacer regulated variation in self-assembly. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.07.056] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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34
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Niklas JE, Farnum BH, Gorden JD, Gorden AEV. Structural Characterization and Redox Activity of a Uranyl Dimer and Transition-Metal Complexes of a Tetradentate BIAN Ligand. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00454] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Julie E. Niklas
- Department of Chemistry and Biochemistry, Auburn University, 179 Chemistry Building, Auburn, Alabama 36849, United States
| | - Byron H. Farnum
- Department of Chemistry and Biochemistry, Auburn University, 179 Chemistry Building, Auburn, Alabama 36849, United States
| | - John D. Gorden
- Department of Chemistry and Biochemistry, Auburn University, 179 Chemistry Building, Auburn, Alabama 36849, United States
| | - Anne E. V. Gorden
- Department of Chemistry and Biochemistry, Auburn University, 179 Chemistry Building, Auburn, Alabama 36849, United States
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35
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Villa M, Miesel D, Hildebrandt A, Ragaini F, Schaarschmidt D, Jacobi von Wangelin A. Synthesis and Catalysis of Redox-Active Bis(imino)acenaphthene (BIAN) Iron Complexes. ChemCatChem 2017. [DOI: 10.1002/cctc.201700144] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Matteo Villa
- Institute of Organic Chemistry; University of Regensburg; Universitaetsstr. 31 93040 Regensburg Germany
| | - Dominique Miesel
- Institute of Chemistry-Inorganic Chemistry; TU Chemnitz; 09107 Chemnitz Germany
| | | | - Fabio Ragaini
- Department of Chemistry; University of Milan; Via C. Golgi 17 20133 Milan Italy
| | - Dieter Schaarschmidt
- Institute of Organic Chemistry; University of Regensburg; Universitaetsstr. 31 93040 Regensburg Germany
- Current address: Department of Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 20146 Hamburg Germany
| | - Axel Jacobi von Wangelin
- Institute of Organic Chemistry; University of Regensburg; Universitaetsstr. 31 93040 Regensburg Germany
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36
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Ghorbanloo M, Jafari S, Bikas R, Krawczyk MS, Lis T. Dioxidovanadium(V) complexes containing thiazol-hydrazone NNN-donor ligands and their catalytic activity in the oxidation of olefins. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.10.005] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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37
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Hu R, Yang P, Pan Y, Li Y, He Y, Feng J, Li D. Synthesis of a highly dispersed CuO catalyst on CoAl-HT for the epoxidation of styrene. Dalton Trans 2017; 46:13463-13471. [DOI: 10.1039/c7dt02247f] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Non-noble CuO/CoAl-HT catalyst with high dispersion and rich electronic density exhibits excellent catalytic performance for the epoxidation of styrene.
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Affiliation(s)
- Rui Hu
- State Key Laboratory of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing
- China
- Beijing Engineering Center for Hierarchical Catalysts
| | - Pengfei Yang
- State Key Laboratory of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing
- China
- Beijing Engineering Center for Hierarchical Catalysts
| | - Yongning Pan
- State Key Laboratory of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing
- China
- Beijing Engineering Center for Hierarchical Catalysts
| | - Yunpeng Li
- State Key Laboratory of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing
- China
- Beijing Engineering Center for Hierarchical Catalysts
| | - Yufei He
- State Key Laboratory of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing
- China
- Beijing Engineering Center for Hierarchical Catalysts
| | - Junting Feng
- State Key Laboratory of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing
- China
- Beijing Engineering Center for Hierarchical Catalysts
| | - Dianqing Li
- State Key Laboratory of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing
- China
- Beijing Engineering Center for Hierarchical Catalysts
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38
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Rana S, Pandey B, Dey A, Haque R, Rajaraman G, Maiti D. A Doubly Biomimetic Synthetic Transformation: Catalytic Decarbonylation and Halogenation at Room Temperature by Vanadium Pentoxide. ChemCatChem 2016. [DOI: 10.1002/cctc.201600843] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sujoy Rana
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
| | - Bhawana Pandey
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
| | - Aniruddha Dey
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
| | - Rameezul Haque
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
| | - Gopalan Rajaraman
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
| | - Debabrata Maiti
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai- 400076 India
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39
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Dhar S, La Clair JJ, León B, Hammons JC, Yu Z, Kashyap MK, Castro JE, Burkart MD. A Carbohydrate-Derived Splice Modulator. J Am Chem Soc 2016; 138:5063-8. [PMID: 27058259 DOI: 10.1021/jacs.5b13427] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Small-molecule splice modulators have recently been recognized for their clinical potential for diverse cancers. This, combined with their use as tools to study the importance of splice-regulated events and their association with disease, continues to fuel the discovery of new splice modulators. One of the key challenges found in the current class of materials arises from their instability, where rapid metabolic degradation can lead to off-target responses. We now describe the preparation of bench-stable splice modulators by adapting carbohydrate motifs as a central scaffold to provide rapid access to potent splice modulators.
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Affiliation(s)
- Sachin Dhar
- Department of Chemistry and Biochemistry, University of California-San Diego , 9500 Gilman Drive, La Jolla, California 92093-0358, United States
| | - James J La Clair
- Department of Chemistry and Biochemistry, University of California-San Diego , 9500 Gilman Drive, La Jolla, California 92093-0358, United States
| | - Brian León
- Department of Chemistry and Biochemistry, University of California-San Diego , 9500 Gilman Drive, La Jolla, California 92093-0358, United States
| | - Justin C Hammons
- Department of Chemistry and Biochemistry, University of California-San Diego , 9500 Gilman Drive, La Jolla, California 92093-0358, United States
| | - Zhe Yu
- Moores Cancer Center, University of California-San Diego , La Jolla, California 92093-0358, United States
| | - Manoj K Kashyap
- Moores Cancer Center, University of California-San Diego , La Jolla, California 92093-0358, United States
| | - Januario E Castro
- Moores Cancer Center, University of California-San Diego , La Jolla, California 92093-0358, United States
| | - Michael D Burkart
- Department of Chemistry and Biochemistry, University of California-San Diego , 9500 Gilman Drive, La Jolla, California 92093-0358, United States
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Hazari AS, Das A, Ray R, Agarwala H, Maji S, Mobin SM, Lahiri GK. Tunable Electrochemical and Catalytic Features of BIAN- and BIAO-Derived Ruthenium Complexes. Inorg Chem 2015; 54:4998-5012. [PMID: 25928272 DOI: 10.1021/acs.inorgchem.5b00615] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This article deals with a class of ruthenium-BIAN-derived complexes, [Ru(II)(tpm)(R-BIAN)Cl]ClO4 (tpm = tris(1-pyrazolyl)methane, R-BIAN = bis(arylimino)acenaphthene, R = 4-OMe ([1a]ClO4), 4-F ([1b]ClO4), 4-Cl ([1c]ClO4), 4-NO2 ([1d]ClO4)) and [Ru(II)(tpm)(OMe-BIAN)H2O](2+) ([3a](ClO4)2). The R-BIAN framework with R = H, however, leads to the selective formation of partially hydrolyzed BIAO ([N-(phenyl)imino]acenapthenone)-derived complex [Ru(II)(tpm)(BIAO)Cl]ClO4 ([2]ClO4). The redox-sensitive bond parameters involving -N═C-C═N- or -N═C-C═O of BIAN or BIAO in the crystals of representative [1a]ClO4, [3a](PF6)2, or [2]ClO4 establish its unreduced form. The chloro derivatives 1a(+)-1d(+) and 2(+) exhibit one oxidation and successive reduction processes in CH3CN within the potential limit of ±2.0 V versus SCE, and the redox potentials follow the order 1a(+) < 1b(+) < 1c(+) < 1d(+) ≈ 2(+). The electronic structural aspects of 1a(n)-1d(n) and 2(n) (n = +2, +1, 0, -1, -2, -3) have been assessed by UV-vis and EPR spectroelectrochemistry, DFT-calculated MO compositions, and Mulliken spin density distributions in paramagnetic intermediate states which reveal metal-based (Ru(II) → Ru(III)) oxidation and primarily BIAN- or BIAO-based successive reduction processes. The aqua complex 3a(2+) undergoes two proton-coupled redox processes at 0.56 and 0.85 V versus SCE in phosphate buffer (pH 7) corresponding to {Ru(II)-H2O}/{Ru(III)-OH} and {Ru(III)-OH}/{Ru(IV)═O}, respectively. The chloro (1a(+)-1d(+)) and aqua (3a(2+)) derivatives are found to be equally active in functioning as efficient precatalysts toward the epoxidation of a wide variety of alkenes in the presence of PhI(OAc)2 as oxidant in CH2Cl2 at 298 K, though the analogous 2(+) remains virtually inactive. The detailed experimental analysis with the representative precatalyst 1a(+) suggests the involvement of the active {Ru(IV)═O} species in the catalytic cycle, and the reaction proceeds through the radical mechanism, as also supported by the DFT calculations.
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Affiliation(s)
- Arijit Singha Hazari
- †Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ankita Das
- †Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ritwika Ray
- †Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Hemlata Agarwala
- †Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Somnath Maji
- †Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Shaikh M Mobin
- ‡Discipline of Chemistry, School of Basic Sciences, Indian Institute of Technology Indore, Indore 452017, India
| | - Goutam Kumar Lahiri
- †Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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Khatri PK, Aila M, Porwal J, Kaul S, Jain SL. Industrial resin “INDION 130” modified with vanadyl cations as highly efficient heterogeneous catalyst for epoxidation of fatty compounds with TBHP as oxidant. NEW J CHEM 2015. [DOI: 10.1039/c5nj00744e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cation exchanger INDION 130 modified with vanadyl cations was found to be readily prepared and reusable and exhibited higher catalytic activity than the homogeneous oxo-vanadium catalyst for epoxidation of fatty compounds.
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Affiliation(s)
- Praveen K. Khatri
- Chemical Sciences Division
- CSIR-Indian Institute of Petroleum
- Dehradun-248005
- India
| | - Mounika Aila
- Biofuel Division
- CSIR-Indian Institute of Petroleum
- Dehradun-248005
- India
| | - Jyoti Porwal
- Biofuel Division
- CSIR-Indian Institute of Petroleum
- Dehradun-248005
- India
| | - Savita Kaul
- Biofuel Division
- CSIR-Indian Institute of Petroleum
- Dehradun-248005
- India
| | - Suman L. Jain
- Chemical Sciences Division
- CSIR-Indian Institute of Petroleum
- Dehradun-248005
- India
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