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Somnath, Ahmad M, Siddiqui KA. Synthesis of Mixed Ligand 3D Cobalt MOF: Smart Responsiveness towards Photocatalytic Dye Degradation in Environmental Contaminants. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133399] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Polymer-supported first-row transition metal schiff base complexes: Efficient catalysts for epoxidation of alkenes. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2021.105142] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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CuII- and CoII-Based MOFs: {[La2Cu3(µ-H2O)(ODA)6(H2O)3]∙3H2O}n and {[La2Co3(ODA)6(H2O)6]∙12H2O}n. The Relevance of Physicochemical Properties on the Catalytic Aerobic Oxidation of Cyclohexene. Catalysts 2020. [DOI: 10.3390/catal10050589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The aerobic oxidation of cyclohexene was done using the heterometallic metal organic frameworks (MOFs) {[La2Cu3(μ-H2O)(ODA)6(H2O)3]⋅3H2O}n (LaCuODA)) (1) and {[La2Co3(ODA)6(H2O)6]∙12H2O}n (LaCoODA) (2) as catalysts, in solvent free conditions (ODA, oxydiacetic acid). After 24 h of reaction, the catalytic system showed that LaCoODA had a better catalytic performance than that of LaCuODA (conversion 85% and 67%). The structures of both catalysts were very similar, showing channels running along the c axis. The physicochemical properties of both MOFs were determined to understand the catalytic performance. The Langmuir surface area of LaCoODA was shown to be greater than that of LaCuODA, while the acid strength and acid sites were greater for LaCuODA. On the other hand, the redox potential of the active sites was related to CoII/CoIII in LaCoODA and CuII/CuI in LaCuODA. Therefore, it is concluded that the Langmuir surface area and the redox potentials were more important than the acid strength and acid sites of the studied MOFs, in terms of the referred catalytic performance. Finally, the reaction conditions were also shown to play an important role in the catalytic performance of the studied systems. Especially, the type of oxidant and the way to supply it to the reaction medium influenced the catalytic results.
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Recent progresses in polymer supported cobalt complexes/nanoparticles for sustainable and selective oxidation reactions. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.110775] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Maurya A, Kesharwani N, Kachhap P, Mishra VK, Chaudhary N, Haldar C. Polymer‐anchored mononuclear and binuclear Cu
II
Schiff‐base complexes: Impact of heterogenization on liquid phase catalytic oxidation of a series of alkenes. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Abhishek Maurya
- Department of ChemistryIndian Institute of Technology (Indian School of Mines) Dhanbad 826004 Jharkhand India
| | - Neha Kesharwani
- Department of ChemistryIndian Institute of Technology (Indian School of Mines) Dhanbad 826004 Jharkhand India
| | - Payal Kachhap
- Department of ChemistryIndian Institute of Technology (Indian School of Mines) Dhanbad 826004 Jharkhand India
| | - Vivek Kumar Mishra
- Department of ChemistryIndian Institute of Technology (Indian School of Mines) Dhanbad 826004 Jharkhand India
| | - Nikita Chaudhary
- Department of Chemistry and Polymer ScienceStellenbosch University Matieland 7602 Stellenbosch South Africa
| | - Chanchal Haldar
- Department of ChemistryIndian Institute of Technology (Indian School of Mines) Dhanbad 826004 Jharkhand India
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Mohammadikish M, Yarahmadi S. Post modification of zinc based coordination polymer to prepare Zn-Mo-ICP nanoparticles as efficient self-supported catalyst for olefin epoxidation. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5052] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Cancino P, Santibañez L, Stevens C, Fuentealba P, Audebrand N, Aravena D, Torres J, Martinez S, Kremer C, Spodine E. Influence of the channel size of isostructural 3d–4f MOFs on the catalytic aerobic oxidation of cycloalkenes. NEW J CHEM 2019. [DOI: 10.1039/c9nj02091h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present work reports a new group of heterogeneous catalysts with a 3D structure, CuLnIDA, {[Cu3Ln2(IDA)6]·8H2O} (Ln: LaIII, GdIII or YbIII), with an organic linker (H2IDA: iminodiacetic acid).
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Cancino P, Santibañez L, Fuentealba P, Olea C, Vega A, Spodine E. Heterometallic Cu II/Ln III polymers active in the catalytic aerobic oxidation of cycloalkenes under solvent-free conditions. Dalton Trans 2018; 47:13360-13367. [PMID: 30065994 DOI: 10.1039/c8dt01913d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Heterometallic 3d-4f inorganic polymers were prepared using 3,5 pyridinedicarboxylic acid (H2PDC), {[CuLn2(PDC)2(SO4)2(H2O)6]·H2O}n (Ln: SmIII, CuSmPDC, EuIII, CuEuPDC, GdIII, and CuGdPDC). These catalysts are active in the aerobic oxidation of cycloalkenes under solvent-free conditions, with a conversion for the oxidation of cyclohexene of 71% after one hour of the reaction, and a TOF value of 1438 h-1 for CuSmPDC. On the other hand, the oxidation of cycloheptene and cyclooctene exhibited slightly lower conversions of 52% and 47%, and TOF values of 1053 and 159 h-1 after 1 and 6 hours of the reaction, respectively. The radical mechanism for the oxidation reaction of cyclohexene was assessed by Raman and EPR spectroscopy. The first evidenced the formation of Cu-O2 adducts and the second permitted is to observe the presence of the oxygen centered radical species, which act as initiators of the reaction chain to generate the products. An increase in the temperature of the reaction correlates with the adduct formation, and with the enhancement of the oxidation reaction.
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Affiliation(s)
- P Cancino
- Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile.
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Zhang T, Hu YQ, Han T, Zhai YQ, Zheng YZ. Redox-Active Cobalt(II/III) Metal-Organic Framework for Selective Oxidation of Cyclohexene. ACS APPLIED MATERIALS & INTERFACES 2018; 10:15786-15792. [PMID: 29667408 DOI: 10.1021/acsami.7b19323] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We report herein a new cobalt(II/III) mixed-valence metal-organic framework formulated as [CoIICo2III(μ3-O)(bdc)3(tpt)]·guest 1, where bdc = benzene-1,4-dicarboxylate and tpt = 2,4,6-tri(4-pyridinyl)-1,3,5-triazine, which can be used as a redox-active heterogeneous catalyst for selective oxidation of cyclohexene on the allylic position without destroying the adjacent double bond. Two oxidants were chosen to demonstrate this result. For using tert-butyl hydroperoxide, the conversion rate is 63% and only allylic oxidation products ( tert-butyl-2-cyclohexenyl-1-peroxide, 86%; 2-cyclohexen-1-one, 14%) are found, whereas if using O2 as oxidant, a total conversion of 38% is achieved and also only the allylic oxidation products (cyclohexenyl hydroperoxide, 72%; 2-cyclohexen-1-one, 20%; and cyclohex-2-en-1-ol, 8%) are found. The absence of any adduct on the double bond may be due to the unique radical chain mechanism triggered by the mixed-valent [CoIICo2III(μ3-O)] centers.
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Affiliation(s)
- Tao Zhang
- Frontier Institute of Science and Technology (FIST), State Key Laboratory for Mechanical Behavior of Materials, MOE Key Laboratory for Nonequilibrium Synthesis of Condensed Matter and School of Science , Xi'an Jiaotong University , 99 Yanxiang Road , Xi'an , Shaanxi 710054 , P. R. China
| | - Yue-Qiao Hu
- Frontier Institute of Science and Technology (FIST), State Key Laboratory for Mechanical Behavior of Materials, MOE Key Laboratory for Nonequilibrium Synthesis of Condensed Matter and School of Science , Xi'an Jiaotong University , 99 Yanxiang Road , Xi'an , Shaanxi 710054 , P. R. China
- Key Laboratory of Advanced Molecular Engineering Materials, College of Chemistry and Chemical Engineering , Baoji University of Arts and Sciences , Baoji 721013 , China
| | - Tian Han
- Frontier Institute of Science and Technology (FIST), State Key Laboratory for Mechanical Behavior of Materials, MOE Key Laboratory for Nonequilibrium Synthesis of Condensed Matter and School of Science , Xi'an Jiaotong University , 99 Yanxiang Road , Xi'an , Shaanxi 710054 , P. R. China
| | - Yuan-Qi Zhai
- Frontier Institute of Science and Technology (FIST), State Key Laboratory for Mechanical Behavior of Materials, MOE Key Laboratory for Nonequilibrium Synthesis of Condensed Matter and School of Science , Xi'an Jiaotong University , 99 Yanxiang Road , Xi'an , Shaanxi 710054 , P. R. China
| | - Yan-Zhen Zheng
- Frontier Institute of Science and Technology (FIST), State Key Laboratory for Mechanical Behavior of Materials, MOE Key Laboratory for Nonequilibrium Synthesis of Condensed Matter and School of Science , Xi'an Jiaotong University , 99 Yanxiang Road , Xi'an , Shaanxi 710054 , P. R. China
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Singh VK, Maurya A, Kesharwani N, Kachhap P, Kumari S, Mahato AK, Mishra VK, Haldar C. Synthesis, characterization, and catalytic oxidation of styrene, cyclohexene, allylbenzene, and cis-cyclooctene by recyclable polymer-grafted Schiff base complexes of vanadium(IV). J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1434516] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Vijay Kumar Singh
- Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad, India
| | - Abhishek Maurya
- Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad, India
| | - Neha Kesharwani
- Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad, India
| | - Payal Kachhap
- Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad, India
| | - Sweta Kumari
- Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad, India
| | - Arun Kumar Mahato
- Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad, India
| | - Vivek Kumar Mishra
- Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad, India
| | - Chanchal Haldar
- Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad, India
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