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Study of Cyclohexane and Methylcyclohexane Functionalization Promoted by Manganese(III) Compounds. INORGANICS 2023. [DOI: 10.3390/inorganics11030105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
Alkane functionalization using safe and low-energy processes is of great interest to industry and academia. Aiming to contribute to the process of saturated hydrocarbon functionalization, we have studied a set of three manganese(III) complexes as catalysts for promoting the oxidation of saturated hydrocarbons (cyclohexane and methylcyclohexane) in the presence of hydrogen peroxide or trichloroisocyanuric acid (TCCA). The mononuclear manganese(III) compounds were prepared using the ligands H2LMet4 (6,6’-((1,4-diazepane-1,4-diyl)bis(methylene))bis(2,4-dimethylphenol), H2salen (2,2’-((1E,1’E)-(ethane-1,2-diylbis(azaneylylidene))bis(methaneylylidene))diphenol) and H2salan (2,2’-((ethane-1,2-diylbis(azanediyl))bis(methylene))diphenol). The catalytic processes were carried out in acetonitrile at 25 and 50 °C for 24 h. The increase in the temperature was important to get a better conversion. The compounds did not promote cyclohexane oxidation in the presence of H2O2. However, they were active in the presence of TCCA, employing a ratio of 1000:333:1 equivalents of the substrate:TCCA:catalyst. The best catalytic activity was shown by the compound [Mn(salen)Cl], reaching conversions of 14.5 ± 0.3% (25 °C) and 26.3 ± 1.1% (50 °C) (yield for chlorocyclohexane) and up to 12.1 ± 0.5% (25 °C) and 29.8 ± 2.2% (50 °C) (total yield for the mixture of the products 1-chloro-4-methylcyclohexane, 3-methylcyclohexene and 1-methylcyclohexene). The interaction of the catalysts with TCCA was studied using electron paramagnetic resonance (EPR), suggesting that the catalysts [Mn(LMet4)Cl] and [Mn(salan)Cl] act via a different mechanism from that observed for [Mn(salen)Cl].
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Kadhim MM, Mahmood EA, Abbasi V, Poor Heravi MR, Habibzadeh S, Mohammadi-Aghdam S, Soleimani-Amiri S. Investigation of the substituted-titanium nanocages using computational chemistry. J Mol Graph Model 2023; 118:108317. [PMID: 36162160 DOI: 10.1016/j.jmgm.2022.108317] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 08/14/2022] [Accepted: 08/23/2022] [Indexed: 10/14/2022]
Abstract
We are investigated substitution effects of titanium heteroatoms on band gap, charge and local reactivity of C20-nTin heterofullerenes (n = 1-5), at different levels and basis sets. The C18Ti2-2 nanocage is considered as the most kinetically stable species with the widest band gap of 2.86 eV, in which two carbon atoms are substituted by two Ti atoms in equatorial position, individually. The charges on carbon atoms of C20 are roughly zero, while high positive charge (1.256) on the surface of C19Ti1 prompts this heteofullerene for hydrogen storage. The positive atomic charge on Ti atoms and negative atomic charge on their adjacent C atoms implies that these sites can be influenced more readily by nucleophilic and electrophilic regents, respectively. We examined the usefulness of local reactivity descriptors to predict the reactivity of Ti-C atomic sites on the external surface of the heterofullerenes. The properties determined include Fukui function (F.F.); f (k) and local softness s (k) on the surfaces of the investigated hollow cages. Geometry optimization results reveal that titanium atoms can be comfortably incorporated into the CC network of fullerene. It is most likely associated with the triple-coordination characteristic of titanium atoms, which can well match with the sp2-hybridized carbon bonding structure. According to the values of f (k) and s (k) for the C15Ti5 heterofullerene; the carbon atoms in the cap regions exhibit a different reactivity pattern than those in the equatorial portion of the heterofullerene. The titanium impurity can significantly improve the fullerene's surface reactivity and it allows controlling their surface properties. The band gap of C20-nTin …..(H2)n structures is decreased with increasing n. Hence, C15Ti5 is found as the best hydrogen adsorbent.
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Affiliation(s)
- Mustafa M Kadhim
- Medical Laboratory Techniques Department, Al-Farahidi University, Baghdad, Iraq
| | - Evan Abdulkareem Mahmood
- Medical Laboratory Sciences Department, College of Health Sciences, University of Human Development, Sulaymaniyah, Iraq
| | - Vahideh Abbasi
- Department of Chemistry, University of Zanjan, Zanjan, Iran
| | | | - Sepideh Habibzadeh
- Department of Chemistry, Payame Noor University, P. O. Box: 19395-3697, Tehran, Iran
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Lashanizadegan M, Ghiasi M, Mirzazadeh H, Ferizhandi AN. Copper (II) and Palladium (II) Schiff‐Base Complexes as Homogeneous and Heterogeneous Catalyst for Efficient α‐Methyl Oxidation Reaction: Experimental and DFT Approaches. ChemistrySelect 2021. [DOI: 10.1002/slct.202004423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Maryam Lashanizadegan
- Department of Chemistry Faculty of Physics & Chemistry Alzahra University, P.O. Box 1993893973 Tehran Iran
| | - Mina Ghiasi
- Department of Chemistry Faculty of Physics & Chemistry Alzahra University, P.O. Box 1993893973 Tehran Iran
| | - Hoda Mirzazadeh
- Department of Chemistry Faculty of Physics & Chemistry Alzahra University, P.O. Box 1993893973 Tehran Iran
| | - Azam N. Ferizhandi
- Department of Chemistry Faculty of Physics & Chemistry Alzahra University, P.O. Box 1993893973 Tehran Iran
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Lee S, Park S, Lee MM, Lee J, Kim C. Nonheme manganese(III) complexes for various olefin epoxidation: Synthesis, characterization and catalytic activity. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120306] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yan W, Wang J, Ding J, Sun P, Zhang S, Shen J, Jin X. Catalytic epoxidation of olefins in liquid phase over manganese based magnetic nanoparticles. Dalton Trans 2019; 48:16827-16843. [PMID: 31646315 DOI: 10.1039/c9dt03456k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Epoxidation of olefins stands out as a crucial class of reactions and is of great interest in academic research and industry due to the production of various important fine chemicals and intermediates. Manganese complexes have the potential to catalyze the epoxidation of olefins with high efficiency. Magnetic nanocatalysts have attracted significant attention for immobilizing homogeneous transition metal complexes. Easy separation by external magnetic fields, nontoxicity, and a core shell structure are the main advantages of magnetic nanocatalysts over other heterogeneous catalysts. The method of functionalizing magnetic nanoparticles and of anchoring homogeneous metal complexes has significant effects on catalytic performance. Therefore, a critical review of recent research progress on manganese complexes' immobilization on magnetic nanoparticles for liquid phase olefin epoxidation is necessary. In this work, magnetic nanoparticles are categorized according to their preparation procedures and structures. The physical/chemical properties, catalytic performance for olefin epoxidation, reusability and plausible reaction mechanisms will be discussed, in an attempt to unravel the structure-function relationship and to guide the future study of MNPs' design for olefin epoxidations.
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Affiliation(s)
- Wenjuan Yan
- State Key Laboratory of Heavy Oil Processing, Center for Chemical Engineering Experimental Teaching, China University of Petroleum, Qingdao, Shandong Province 266580, China.
| | - Jinyao Wang
- State Key Laboratory of Heavy Oil Processing, Center for Chemical Engineering Experimental Teaching, China University of Petroleum, Qingdao, Shandong Province 266580, China.
| | - Jie Ding
- State Key Laboratory of Heavy Oil Processing, Center for Chemical Engineering Experimental Teaching, China University of Petroleum, Qingdao, Shandong Province 266580, China.
| | - Puhua Sun
- State Key Laboratory of Heavy Oil Processing, Center for Chemical Engineering Experimental Teaching, China University of Petroleum, Qingdao, Shandong Province 266580, China.
| | - Shuxia Zhang
- State Key Laboratory of Heavy Oil Processing, Center for Chemical Engineering Experimental Teaching, China University of Petroleum, Qingdao, Shandong Province 266580, China.
| | - Jian Shen
- College of Environment and Resources, Xiangtan University, Xiangtan, Hunan Province 411105, China
| | - Xin Jin
- State Key Laboratory of Heavy Oil Processing, Center for Chemical Engineering Experimental Teaching, China University of Petroleum, Qingdao, Shandong Province 266580, China.
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Ahadi E, Hosseini-Monfared H, Schlüsener C, Janiak C, Farokhi A. Chirally-Modified Graphite Oxide as Chirality Inducing Support for Asymmetric Epoxidation of Olefins with Grafted Manganese Porphyrin. Catal Letters 2019. [DOI: 10.1007/s10562-019-02933-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Jin M, Niu Q, Guo Z, Lv Z. Epoxidation of cyclohexene with H
2
O
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over efficient water‐tolerant heterogeneous catalysts composed of mono‐substituted phosphotungstic acid on co‐functionalized SBA‐15. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Manman Jin
- State Key Laboratory Base for Eco‐chemical Engineering, College of Chemical EngineeringQingdao University of Science and Technology No. 53 Zhengzhou Road Qingdao 266042 China
- Department of Chemistry and Chemical EngineeringJining University Qufu Shandong 273155 China
| | - Qingtao Niu
- Department of Chemistry and Chemical EngineeringJining University Qufu Shandong 273155 China
| | - Zhenmei Guo
- College of Marine Science and Biological EngineeringQingdao University of Science and Technology No.53 Zhengzhou Road Qingdao 266042 China
| | - Zhiguo Lv
- State Key Laboratory Base for Eco‐chemical Engineering, College of Chemical EngineeringQingdao University of Science and Technology No. 53 Zhengzhou Road Qingdao 266042 China
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Environmentally Benign Carbon Nanodots Prepared from Lemon for the Sensitive and Selective Fluorescence Detection of Fe(III) and Tannic Acid. J Fluoresc 2019; 29:631-643. [PMID: 30993505 DOI: 10.1007/s10895-019-02360-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Accepted: 02/20/2019] [Indexed: 10/27/2022]
Abstract
Photoluminescent carbon nanodots (CNDs) were prepared using a biocarbon source of lemon extract. The obtained CNDs are of spherical shape and are enriched with the carboxylic acid fucntionalities. CNDs exhibited a fluorescence emission at 445 nm and unveiled blue luminescence in ultraviolet excitation. The influences of pH and ionic strength toward the stability of CNDs were investigated in detail and the obtained stability authenticates their applicability in different environmental conditions. The competitive binding of Fe3+ with CNDs quenches the fluorescence behavior of CNDs and was further quenched with the selective complex formation of Fe3+ with tannic acid (TA). The interference experiments specified that CNDs-Fe3+ assembly selectively detected TA and the co-existing molecules have not influenced the quenching effect of TA with CNDs-Fe3+. The analytical reliability of constructed sensor was validated from the recovery obtained in the range of 91.66-107.02% in real samples. Thus the low cost and environmentally benign CNDs prepared from natural biomass provide new avenues in the fluorescence detection of biologically significant metal ions and biomolecules, facilitating their competency in on-site applications of real environmental samples.
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Li Z, Yang C, Cui J, Ma Y, Kan Q, Guan J. Recent Advancements in Graphene-Based Supports of Metal Complexes/Oxides for Epoxidation of Alkenes. Chem Asian J 2018; 13:3790-3799. [DOI: 10.1002/asia.201801224] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 10/01/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Zhifang Li
- College of Materials Science and Engineering, Heilongjiang Provincial Key Laboratory of, Polymeric Composite Materials; Qiqihar University; Wenhua Street 42 Qiqihar 161006 P.R. China
- College of Chemistry; Jilin University; Changchun 130023 P.R. China
| | - Changlong Yang
- College of Materials Science and Engineering, Heilongjiang Provincial Key Laboratory of, Polymeric Composite Materials; Qiqihar University; Wenhua Street 42 Qiqihar 161006 P.R. China
| | - Jinxing Cui
- College of Materials Science and Engineering, Heilongjiang Provincial Key Laboratory of, Polymeric Composite Materials; Qiqihar University; Wenhua Street 42 Qiqihar 161006 P.R. China
| | - Yuanyuan Ma
- Key Laboratory of Fine Chemicals of College of Heilongjiang Province; Qiqihar University; Qiqihar 161006 P.R. China
| | - Qiubin Kan
- College of Chemistry; Jilin University; Changchun 130023 P.R. China
| | - Jingqi Guan
- College of Chemistry; Jilin University; Changchun 130023 P.R. China
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Affiliation(s)
- Vincenzo Campisciano
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Michelangelo Gruttadauria
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Francesco Giacalone
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
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Abbasi V, Hosseini-Monfared H, Hosseini SM. A heterogenized chiral imino indanol complex of manganese as an efficient catalyst for aerobic epoxidation of olefins. NEW J CHEM 2017. [DOI: 10.1039/c7nj00670e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A new composite was synthesized by grafting the (1R,2S)-1-(N-salicylideneamino)-2-indanol complex of Mn onto graphene oxide/Fe3O4@C. It catalysed the aerobic epoxidation of olefins with a selectivity of >98% and enantioselectivity of >99%.
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Affiliation(s)
- Vahideh Abbasi
- Department of Chemistry
- University of Zanjan
- Zanjan 45195-313
- Iran
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