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Wang J, Zhang Q, Li Y, Xu T, Sun Y, Bai J. A novel Ag-loaded 4 Å zeolite as an efficient catalyst for epoxidation of styrene. RSC Adv 2024; 14:19735-19743. [PMID: 38903667 PMCID: PMC11188665 DOI: 10.1039/d4ra00758a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 06/12/2024] [Indexed: 06/22/2024] Open
Abstract
In this study, a novel Ag-loaded 4 Å zeolite was synthesized through the combined action of strong ultrasound and a high-voltage electrostatic field (the Z-Ag-UE) and its catalytic activity was evaluated in the epoxidation of styrene. The prepared catalysts were characterized using XRD, SEM, XPS, BET, TG, ICP-OES. The results showed that the silver evenly dispersed inside the octahedral 4 Å zeolite structure rather than being attached to the surface of the material like in the impregnation method, and this Ag-loaded 4 Å zeolite had a high surface area, uniform particle size distribution, and excellent high temperature thermal stability. The catalytic performance of the Ag-loaded 4 Å zeolite was investigated by varying the reaction conditions such as the amount of catalyst, temperature, and reaction time. Under optimized conditions, the Ag-loaded 4 Å zeolite showed high selectivity and conversion for the epoxidation of styrene, achieving a conversion rate of up to 98% and a selectivity of 94%. In particular, the catalyst had excellent recyclability and was reused more than fifteen times with the catalytic performance remaining unchanged. This method of loading metal prepared under external field conditions provides a new method and idea for future research in related fields.
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Affiliation(s)
- Junzhong Wang
- College of Chemical Engineering, Inner Mongolia University of Technology Hohhot 010051 People's Republic of China
- Inner Mongolia Key Laboratory of Industrial Catalysis Hohhot 010051 People's Republic of China
| | - Qiancheng Zhang
- College of Chemical Engineering, Inner Mongolia University of Technology Hohhot 010051 People's Republic of China
- Inner Mongolia Key Laboratory of Industrial Catalysis Hohhot 010051 People's Republic of China
| | - Ying Li
- College of Chemical Engineering, Inner Mongolia University of Technology Hohhot 010051 People's Republic of China
- Inner Mongolia Key Laboratory of Industrial Catalysis Hohhot 010051 People's Republic of China
| | - Tong Xu
- College of Chemical Engineering, Inner Mongolia University of Technology Hohhot 010051 People's Republic of China
- Inner Mongolia Key Laboratory of Industrial Catalysis Hohhot 010051 People's Republic of China
| | - Yinghui Sun
- College of Chemical Engineering, Inner Mongolia University of Technology Hohhot 010051 People's Republic of China
- Inner Mongolia Key Laboratory of Industrial Catalysis Hohhot 010051 People's Republic of China
| | - Jie Bai
- College of Chemical Engineering, Inner Mongolia University of Technology Hohhot 010051 People's Republic of China
- Inner Mongolia Key Laboratory of Industrial Catalysis Hohhot 010051 People's Republic of China
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Mureseanu M, Filip M, Bleotu I, Spinu CI, Marin AH, Matei I, Parvulescu V. Cu(II) and Mn(II) Anchored on Functionalized Mesoporous Silica with Schiff Bases: Effects of Supports and Metal-Ligand Interactions on Catalytic Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1884. [PMID: 37368314 DOI: 10.3390/nano13121884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 06/28/2023]
Abstract
New series of Cu(II) and Mn(II) complexes with Schiff base ligands derived from 2-furylmethylketone (Met), 2-furaldehyde (Fur), and 2-hydroxyacetopheneone (Hyd) have been synthesized in situ on SBA-15-NH2, MCM-48-NH2, and MCM-41-NH2 functionalized supports. The hybrid materials were characterized by X-ray diffraction, nitrogen adsorption-desorption, SEM and TEM microscopy, TG analysis, and AAS, FTIR, EPR, and XPS spectroscopies. Catalytic performances were tested in oxidation with the hydrogen peroxide of cyclohexene and of different aromatic and aliphatic alcohols (benzyl alcohol, 2-methylpropan-1-ol, and 1-buten-3-ol). The catalytic activity was correlated with the type of mesoporous silica support, ligand, and metal-ligand interactions. The best catalytic activity of all tested hybrid materials was obtained in the oxidation of cyclohexene on SBA-15-NH2-MetMn as a heterogeneous catalyst. No leaching was evidenced for Cu and Mn complexes, and the Cu catalysts were more stable due to a more covalent interaction of the metallic ions with the immobilized ligands.
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Affiliation(s)
- Mihaela Mureseanu
- Department of Chemistry, Faculty of Sciences, University of Craiova, Calea Bucuresti, 107I, 200478 Craiova, Romania
| | - Mihaela Filip
- "IlieMurgulescu" Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Irina Bleotu
- Department of Chemistry, Faculty of Sciences, University of Craiova, Calea Bucuresti, 107I, 200478 Craiova, Romania
| | - Cezar Ionut Spinu
- Department of Chemistry, Faculty of Sciences, University of Craiova, Calea Bucuresti, 107I, 200478 Craiova, Romania
| | - Alexandru Horia Marin
- Ken and Mary Alice Lindquist Department of Nuclear Engineering, Penn State University, University Park, State College, PA 16802, USA
- Surface Analysis Laboratory, Institute for Nuclear Research Pitesti, 115400 Mioveni, Romania
| | - Iulia Matei
- "IlieMurgulescu" Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Viorica Parvulescu
- "IlieMurgulescu" Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
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Oxyfunctionalization of Benzylic C-H Bonds of Toluene Mediated by Covalently Anchored Co-Schiff Bases. Molecules 2022; 27:molecules27165302. [PMID: 36014538 PMCID: PMC9416660 DOI: 10.3390/molecules27165302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
Oxyfunctionalization of toluene to value-added benzaldehyde, benzyl alcohol and benzoic acid is of great significance. In this work, Co-Schiff bases were immobilized on commercial silica gel by covalent anchoring, and resulting catalysts were used to catalyze the oxidation of toluene in the presence of the cocatalyst N-hydroxyphthalimide (NHPI). The catalysts exhibited excellent textural and structural properties, reliable bonding and a predomination of the cobaltous ions. The catalyst synthesized by diethylamino salicylaldehyde (EASA) possessed a grafting density of 0.14 mmol/g and exhibited a toluene conversion of 37.5%, with predominant selectivities to benzaldehyde, benzyl alcohol and benzoic acid under solvent-free conditions. It is concluded that the effect of ligands on their catalytic performance might be related to their electron-donating or -withdrawing properties.
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Li X, Wang Q, Lyu J, Li X. Recent Investigation on Epoxidation of Styrene with Hydrogen Peroxide by Heterogeneous Catalysis. ChemistrySelect 2021. [DOI: 10.1002/slct.202101353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Xing Li
- School of Chemical Engineering Zhejiang University of Technology Hangzhou 310032 People's Republic of China
| | - Qingtao Wang
- School of Chemical Engineering Zhejiang University of Technology Hangzhou 310032 People's Republic of China
| | - Jinghui Lyu
- School of Chemical Engineering Zhejiang University of Technology Hangzhou 310032 People's Republic of China
| | - Xiaonian Li
- School of Chemical Engineering Zhejiang University of Technology Hangzhou 310032 People's Republic of China
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Noroozi Pesyan N, Rezanejade Bardajee G, Kashani E, Mohammadi M, Batmani H. Ni(II)-Schiff base/SBA-15: a nanostructure and reusable catalyst for one-pot three-component green synthesis of 3,4-dihydropyrano[3,2-c]chromene derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03954-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Sultana S, Borah G, Gogoi PK. Mont-K10 Supported Fe(II) Schiff-Base Complex as an Efficient Catalyst for Hydrogenation of Ketones. Catal Letters 2019. [DOI: 10.1007/s10562-019-02810-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Ag-doped 4A-zeolite as an efficient catalyst in the epoxidation of styrene. REACTION KINETICS MECHANISMS AND CATALYSIS 2016. [DOI: 10.1007/s11144-016-1081-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Efficient preparation of Zr(IV)-salen grafted mesoporous MCM-41 catalyst for chemoselective oxidation of sulfides to sulfoxides and Knoevenagel condensation reactions. CHINESE JOURNAL OF CATALYSIS 2015. [DOI: 10.1016/s1872-2067(15)60968-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Mureşeanu M, Puşcaşu M, Şomăcescu S, Cârjă G. CuII(Sal-Ala)/CuAlLDH Hybrid as Novel Efficient Catalyst for Artificial Superoxide Dismutase (SOD) and Cyclohexene Oxidation by H2O2. Catal Letters 2015. [DOI: 10.1007/s10562-015-1555-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Mureşeanu M, Georgescu I, Bibire LE, Cârjă G. CUII(Sal-Ala)/MgAlLDH and CUII(Sal-Phen)/MgAlLDH as novel catalytic systems for cyclohexene oxidation by H2O2. CATAL COMMUN 2014. [DOI: 10.1016/j.catcom.2014.05.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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11
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Atashin H, Malakooti R. Supported Palladium Oxide Nanoparticles in SBA-15 as a Heterogeneous Catalyst for the Aerobic Oxidation of Alcohols. J CHIN CHEM SOC-TAIP 2014. [DOI: 10.1002/jccs.201300609] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Zhang WD, Xu LX, Shi W, Wang CC, Hui YH, Xie ZF. Oxidation of aldehydes to carboxylic acids in water catalyzed by cobalt(II) Schiff-base complex anchored to SBA-15/MCM-41. RUSS J GEN CHEM+ 2014. [DOI: 10.1134/s1070363214040306] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Antony R, David Manickam ST, Kollu P, Chandrasekar PV, Karuppasamy K, Balakumar S. Highly dispersed Cu(ii), Co(ii) and Ni(ii) catalysts covalently immobilized on imine-modified silica for cyclohexane oxidation with hydrogen peroxide. RSC Adv 2014. [DOI: 10.1039/c4ra01960a] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
This paper describes the synthesis of Cu(ii), Co(ii) and Ni(ii) catalysts immobilized on imine-functionalized silica gel through a 3-aminopropyltriethoxysilane linker.
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Affiliation(s)
- R. Antony
- Centre for Scientific and Applied Research
- PSN College of Engineering and Technology
- Tirunelveli-627 152, India
| | - S. Theodore David Manickam
- Centre for Scientific and Applied Research
- PSN College of Engineering and Technology
- Tirunelveli-627 152, India
| | - Pratap Kollu
- DST-INSPIRE Faculty
- Department of Metallurgical Engineering and Materials Science
- Indian Institute of Technology Bombay
- Mumbai-400076, India
| | - P. V. Chandrasekar
- College of Physics and Information Engineering
- Institute of Optoelectronic Display
- Fuzhou University
- Fuzhou-350002, PR China
| | - K. Karuppasamy
- Centre for Scientific and Applied Research
- PSN College of Engineering and Technology
- Tirunelveli-627 152, India
| | - S. Balakumar
- Centre for Scientific and Applied Research
- PSN College of Engineering and Technology
- Tirunelveli-627 152, India
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Antony R, Theodore David Manickam S, Karuppasamy K, Kollu P, Chandrasekar PV, Balakumar S. Organic–inorganic hybrid catalysts containing new Schiff base for environment friendly cyclohexane oxidation. RSC Adv 2014. [DOI: 10.1039/c4ra08303b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Organic and inorganic entities have been hybridized using 3-aminopropyltriethoxysilane (APTES) linker for the synthesis of three novel organic–inorganic hybrid catalysts [Cu(ii), Co(ii) and Ni(ii)].
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Affiliation(s)
- R. Antony
- Centre for Scientific and Applied Research
- PSN College of Engineering and Technology (Autonomous)
- Tirunelveli 627152, India
| | - S. Theodore David Manickam
- Centre for Scientific and Applied Research
- PSN College of Engineering and Technology (Autonomous)
- Tirunelveli 627152, India
| | - K. Karuppasamy
- Centre for Scientific and Applied Research
- PSN College of Engineering and Technology (Autonomous)
- Tirunelveli 627152, India
| | - Pratap Kollu
- Newton International Fellow
- Thin Film Magnetism Group
- Department of Physics
- Cavendish Laboratory
- University of Cambridge
| | - P. V. Chandrasekar
- College of Physics and Information Engineering
- Institute of Optoelectronic Display
- Fuzhou University
- Fuzhou 350002, PR China
| | - S. Balakumar
- Centre for Scientific and Applied Research
- PSN College of Engineering and Technology (Autonomous)
- Tirunelveli 627152, India
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Synthesis of a novel supermagnetic iron oxide nanocomposite hydrogel based on graft copolymerization of poly((2-dimethylamino)ethyl methacrylate) onto salep for controlled release of drug. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 36:277-86. [PMID: 24433913 DOI: 10.1016/j.msec.2013.11.022] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 10/13/2013] [Accepted: 11/15/2013] [Indexed: 02/07/2023]
Abstract
In this research, a novel supermagnetic iron oxide nanocomposite hydrogel was prepared using simultaneous in situ formation of iron oxide nanoparticles (IONs) and three-dimensional cross-linked polymer networks based on graft copolymerization of poly((2-dimethylamino)ethyl methacrylate) (PDMA) onto salep (PDMA-g-salep). The prepared ION-PDMA-g-salep hydrogel was systematically characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy with energy dispersive X-ray analysis (SEM-EDAX), transmission electron microscopy (TEM), thermal gravimetric analysis (TGA), X-ray diffraction (XRD), and vibrating sample magnetometer (VSM). In addition, the ION-PDMA-g-salep hydrogel exhibits favorable swelling properties that are sensitive to temperature, pH, and external magnetic field (EMF). The drug release behavior of the prepared hydrogel under EMF, different temperatures and pHs was also studied for the evaluation of the release mechanism and determination of diffusion coefficients. Finally, the antibacterial activity and cytotoxicity studies of the prepared hydrogel were examined. These results suggested that the ION-PDMA-g-salep hydrogel could be a promising candidate for biological dressing applications.
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Jollet V, Albela B, Sénéchal-David K, Jégou P, Kolodziej E, Sainton J, Bonneviot L, Banse F. Confinement of a bioinspired nonheme Fe(II) complex in 2D hexagonal mesoporous silica with metal site isolation. Dalton Trans 2013; 42:11607-13. [PMID: 23824307 DOI: 10.1039/c3dt50590a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mixed amine pyridine polydentate Fe(II) complex was covalently tethered in hexagonal mesoporous silica of the MCM-41 type. Metal site isolation was generated using adsorbed tetramethylammonium cations acting as a patterned silanol protecting mask and trimethylsilylazane as a capping agent. Then, the amine/pyridine ligand bearing a tethering triethoxysilane group was either grafted to such a pretreated silica surface prior to or after complexation to Fe(II). These two synthetic routes, denoted as two-step and one-step, respectively, were also applied to fumed silica for comparison, except that the silanol groups were capped after tethering the metal unit. The coordination of the targeted complex was monitored using UV-visible spectrophotometry and, according to XPS, the best control was achieved inside the channels of the mesoporous silica for the two-step route. For the solid prepared according to the one-step route, tethering of the complex occurred mainly at the entrance of the channel.
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Affiliation(s)
- Véronique Jollet
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, Laboratoire de Chimie Inorganique, Université Paris Sud, F-91405 Orsay Cedex, France
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Abdel-Rahman LH, El-Khatib RM, Nassr LAE, Abu-Dief AM, Lashin FED. Design, characterization, teratogenicity testing, antibacterial, antifungal and DNA interaction of few high spin Fe(II) Schiff base amino acid complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 111:266-276. [PMID: 23665616 DOI: 10.1016/j.saa.2013.03.061] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 03/12/2013] [Accepted: 03/13/2013] [Indexed: 06/02/2023]
Abstract
In this study, new Fe(II) Schiff base amino acid chelates derived from the condensation of o-hydroxynaphthaldehyde with L-alanine, L-phenylalanine, L-aspartic acid, L-histidine and L-arginine were synthesized and characterized via elemental, thermogravimetric analysis, molar conductance, IR, electronic, mass spectra and magnetic moment measurements. The stoichiometry and the stability constants of the complexes were determined spectrophotometrically. Correlation of all spectroscopic data suggested that Schiff bases ligands exhibited tridentate with ONO sites coordinating to the metal ions via protonated phenolic-OH, azomethine-N and carboxylate-O with the general formulae [Fe(HL)2]·nH2O. But in case of L-histidine, the ligand acts as tetradentate via deprotonated phenolic-OH, azomethine-N, carboxylate-O and N-imidazole ring ([FeL(H2O)2]·2H2O), where HL=mono anion and L=dianion of the ligand. The structure of the prepared complexes is suggested to be octahedral. The prepared complexes were tested for their teratogenicity on chick embryos and found to be safe until a concentration of 100 μg/egg with full embryos formation. Moreover, the interaction between CT-DNA and the investigated complexes were followed by spectrophotometric and viscosity measurements. It was found that, the prepared complexes bind to DNA via classical intercalative mode and showed a different DNA activity with the sequence: nhi>nari>nali>nasi>nphali. Furthermore, the free ligands and their complexes are screened for their in vitro antibacterial and antifungal activity against three types of bacteria, Escherichia coli, Pseudomonas aeruginosa and Bacillus cereus and three types of anti fungal cultures, Penicillium purpurogenium, Aspergillus flavus and Trichotheium rosium in order to assess their antimicrobial potential. The results show that the metal complexes are more reactive with respect to their corresponding Schiff base amino acid ligands.
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Nickel(II) complex anchored on MCM-41 for the epoxidation of styrene by oxygen. CHINESE JOURNAL OF CATALYSIS 2013. [DOI: 10.1016/s1872-2067(12)60568-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Synthesis, physicochemical studies, embryos toxicity and DNA interaction of some new Iron(II) Schiff base amino acid complexes. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.02.023] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Preparation of Immobilized Chromium Schiff Base Complexes and Their Catalytic Performance for Cyclohexene Epoxidation. CHINESE JOURNAL OF CATALYSIS 2011. [DOI: 10.1016/s1872-2067(10)60272-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Tethering of nickel(II) Schiff-base complex onto mesoporous silica: An efficient heterogeneous catalyst for epoxidation of olefins. Polyhedron 2011. [DOI: 10.1016/j.poly.2011.04.040] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Epoxidation of Styrene with Hydrogen Peroxide over MgO Catalyst. CHINESE JOURNAL OF CATALYSIS 2011. [DOI: 10.3724/sp.j.1088.2011.01161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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