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Shang Z, Zhu Z, Wang G, Lu W, Wu B, Li Q. Pyridine-bridged cobalt tetra-aminophthalocyanine to active peroxymonosulphate for efficient degrading carbamazepine. ENVIRONMENTAL TECHNOLOGY 2023:1-13. [PMID: 37559566 DOI: 10.1080/09593330.2023.2245541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/11/2023] [Indexed: 08/11/2023]
Abstract
In this study, each cobalt tetra-aminophthalocyanine (CoTAPc) molecule was immobilised with four isonicotinic acid (INA) molecules by amide bonding, a novel and highly efficient catalyst pyridine-bridged cobalt tetra-aminophthalocyanine (CoTAPc-TINA) was synthesised. The introduction of INA molecules promoted CoTAPc to expose more active sites, and increased the electron cloud density of cobalt ions promoting O-O bond homolysis of PMS to generate more active species, which significantly enhanced catalytic activity. With the pharmaceutical of carbamazepine (CBZ) as model pollutant, 0.1 g/L CoTAPc-TINA in dark in the presence of 0.4 mM PMS, 98.8% CBZ was removed within 10 min. However, under the same conditions the removed of CBZ was only 58.9% by CoTAPc/PMS system. Radical capture experiments combined electron paramagnetic resonance technology demonstrate that hydroxyl radicals, sulphate radicals, superoxide radicals and singlet oxygen are the main active species in the CoTAPc-TINA/PMS system. As the reaction proceeded, all aromatic intermediates were transformed to small molecular acids by these active species. This investigation provided a new insight for application of metal phthalocyanine in wastewater treatment.
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Affiliation(s)
- Zhiguo Shang
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou, People's Republic of China
| | - Zhexin Zhu
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou, People's Republic of China
| | - Gangqiang Wang
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou, People's Republic of China
| | - Wangyang Lu
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou, People's Republic of China
| | - Bingyao Wu
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou, People's Republic of China
| | - Qijian Li
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou, People's Republic of China
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“For Asia Market Only”: A Green Tattoo Ink between Safety and Regulations. Molecules 2022; 27:molecules27113491. [PMID: 35684430 PMCID: PMC9182426 DOI: 10.3390/molecules27113491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/19/2022] [Accepted: 05/23/2022] [Indexed: 12/04/2022] Open
Abstract
Due to the increasing tattoo practicing in Eastern countries and general concern on tattoo ink composition and safety, the green tattoo inks Green Concentrate by Eternal, for European and “for Asia Market Only” were analyzed, under the premise that only the former falls under a composition regulation. A separation of the additives from the pigment was carried out by successive extraction in solvents of different polarities, i.e., water, acetone and dichloromethane. The solid residues were analyzed by IR and Raman spectroscopies, the liquid fractions by GC/mass spectrometry. The relative pigment load and element traces were also estimated. We found that the European and the Asian inks are based on the same pigment, PG7, restricted in Europe, though at different loads. They have a similar content of harmful impurities, such as Ni, As, Cd and Sb and both contain siloxanes, including harmful D4. Furthermore, they have different physical-chemical properties, the European ink being more hydrophilic, the Asian more hydrophobic. Additionally, the Asian ink contains harmful additives for the solubilization of hydrophobic matrices and by-products of the phthalocyanine synthesis. Teratogenic phthalates are present as well as chlorinated teratogenic and carcinogenic compounds usually associated to the laser treatment for removal purposes, to a larger extent in the European ink. The composition of the inks does not seem to reflect regulatory restrictions, where issued.
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Yeganeh AD, Amini MM, Safari N. In situ synthesis and encapsulation of copper phthalocyanine into MIL-101(Cr) and MIL-100(Fe) pores and investigation of their catalytic performance in the epoxidation of styrene. J PORPHYR PHTHALOCYA 2019. [DOI: 10.1142/s1088424619501323] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this work, copper phthalocyanine (CuPc) was encapsulated into mesocages of MIL-101(Cr) and MIL-100(Fe) by assembling CuPc’s constitutional fractions using a deep eutectic solvent. The prepared materials, CuPc@MIL-101(Cr) and CuPc@MIL-100(Fe), were characterized by powder X-ray diffraction (PXRD), FT-IR, UV-vis and diffuse reflectance UV (DR-UV) spectroscopies, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and ICP-OES spectrometry. The prepared materials were used as heterogeneous catalysts for catalytic epoxidation of styrene with molecular oxygen and also tert-butyl hydroperoxide (TBHP) as oxidants in acetonitrile as a solvent. The impact of MOFs and the role of the CuPc complex as the active species in the MOFs’ cages in the epoxidation of styrene were investigated. Among the prepared catalysts, CuPc@MIL-101(Cr) showed the best performance. The heterogeneity of the catalysts was examined by a hot filtration test and ICP-OES of the filtrates after the reaction. Spent catalysts were analyzed by PXRD, FT-IR, UV-DRS, and TEM for reusability investigation and also to further explore the heterogeneous nature of the hybrid materials. Results showed that the prepared catalysts could be recycled and used for several concoctive times without a considerable drop in activity.
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Affiliation(s)
| | - Mostafa M. Amini
- Department of Chemistry, Shahid Beheshti University, G.C., Tehran 1983963113, Iran
| | - Nasser Safari
- Department of Chemistry, Shahid Beheshti University, G.C., Tehran 1983963113, Iran
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Selvaraj T, Rajalingam R. Theoretical Studies of the Zeolite-Y Encapsulated Chlorine-Substituted Copper(II)phthalocyanine Complex on the Formation Glycidol from Allyl Alcohol. ACS OMEGA 2018; 3:9613-9619. [PMID: 31459092 PMCID: PMC6645148 DOI: 10.1021/acsomega.8b00891] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 08/09/2018] [Indexed: 05/10/2023]
Abstract
Density functional theory (DFT) used to study the encapsulation of copper(II)phthalocyanine and chlorine-substituted copper(II)phthalocyanine to a zeolite-Y framework. Changes occurring in the redox properties, as well as the red shift of the time-dependent DFT (TD-DFT) spectra, point out the influence of encapsulation on the geometric parameters of the complexes. Also, the TD-DFT calculations show good agreement with the energy changes occurred in the highest occupied molecular orbital and lowest unoccupied molecular orbital. DFT-based descriptors are used for scrutinizing the reactivity of the encapsulated complexes and a mechanism of the glycidol formation is proposed based on the energetics involved in the transformation.
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Ateş Turkmen T, Zeng L, Cui Y, Fidan İ, Dumoulin F, Hirel C, Zorlu Y, Ahsen V, Chernonosov AA, Chumakov Y, Kadish KM, Gürek AG, Tokdemir Öztürk S. Effect of the Substitution Pattern (Peripheral vs Non-Peripheral) on the Spectroscopic, Electrochemical, and Magnetic Properties of Octahexylsulfanyl Copper Phthalocyanines. Inorg Chem 2018; 57:6456-6465. [PMID: 29767506 DOI: 10.1021/acs.inorgchem.8b00528] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
In order to investigate the substitution position effect on the spectroscopic, electrochemical, and magnetic properties of copper phthalocyanines, a detailed structure-property analysis has been performed by examining two copper phthalocyanines that are octasubstituted by hexylsulfanyl chains respectively in the peripheral (Cu-P) and non-peripheral (Cu-NP) positions. Cu-NP showed a marked near-IR maximum absorption compared to Cu-P and, accordingly, a smaller HOMO-LUMO energy gap, calculated via the electrochemical results and simulations in the gas phase, as well as for Cu-NP from its crystallographic data. An electron-spin resonance (ESR) technique is used to extract the g values from the powder spectra that are taken at room temperature. The g values were determined to be g∥ = 2.160 and g⊥ = 2.045 for Cu-P and g∥ = 2.150 and g⊥ = 2.050 for Cu-NP. These values indicate that the paramagnetic copper center in both phthalocyanines has axial symmetry with a planar anisotropy ( g∥ > g⊥). The ESR spectra in solution could be obtained only for Cu-P. Curie law is used to fit the experimental data of the magnetic susceptibility versus temperature graphs, and the Curie constant ( C) and diamagnetic/temperature-independent paramagnetic (α) contributions are deduced as 0.37598 (0.39576) cm3·K/mol and -23 × 10-5 (25 × 10-5) cm3/mol respectively for Cu-P and Cu-NP. The room temperature magnetic moment value (1.70 μB) is close to the spin-only value (1.73 μB) for the peripheral complex, showing that there is no orbital contribution to μeff. In contrast, at room temperature, the value of the magnetic moment (1.77 μB) is above the spin-only value, showing an orbital contribution to the magnetic moment. Cu-NP's room temperature magnetic moment value is larger than the value for Cu-P, demonstrating that the orbital contribution to the magnetic moment depends upon the substituent position. The magnitudes of the effective magnetic moment values also support that both Cu-P and Cu-NP complexes have square-planar coordination. This result is consistent with the determined g values. The spin densities were determined experimentally, and the results suggest that the positions of the substituents affect these values (0.469 for Cu-P and 0.490 for Cu-NP).
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Affiliation(s)
| | - Lihan Zeng
- Department of Chemistry , University of Houston , Houston , Texas 77204-5003 , United States
| | - Yan Cui
- Department of Chemistry , University of Houston , Houston , Texas 77204-5003 , United States
| | | | | | | | | | | | - Alexander A Chernonosov
- Institute of Chemical Biology and Fundamental Medicine , 8 Lavrentiev Avenue , Novosibirsk 630090 , Russia
| | - Yurii Chumakov
- Institute of Applied Physics of the Academy of Sciences of Moldova , Academiei strasse 5 , Chisinau , Moldavia
| | - Karl M Kadish
- Department of Chemistry , University of Houston , Houston , Texas 77204-5003 , United States
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Synergistic Catalytic Oxidation of Ethylbenzene to Acetophenone by Metallophthalocyanine Intercalated Layered Double Hydroxide with Oxygen. ChemistrySelect 2018. [DOI: 10.1002/slct.201701841] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Zhou B, Chen W. A Mild Catalytic Oxidation System: FePcOTf/H2O2 Applied for Cyclohexene Dihydroxylation. Molecules 2015; 20:8429-39. [PMID: 25970042 PMCID: PMC6272422 DOI: 10.3390/molecules20058429] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 04/24/2015] [Indexed: 11/20/2022] Open
Abstract
Iron (III) phthalocyanine complexes were employed for the first time as a mild and efficient Lewis acid catalyst in the selective oxidation of cyclohexene to cyclohexane-1,2-diol. It was found that the catalyst FePcOTf shown excellent conversion and moderate selectivity relative to other iron (III) phthalocyanine complexes. The optimum conditions of the oxidation reaction catalyzed by FePcOTf/H2O2 have been researched in this paper. Iron (III) phthalocyanine triflate (1 mol %) as catalyst, hydrogen peroxide as oxidant, methanol as solvent, and a mole ratio of substrate and oxidant (H2O2) of 1:1 were used for achieving moderate yields of 1,2-diols under reflux conditions after eight hours.
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Affiliation(s)
- Baocheng Zhou
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education of China, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Wenxing Chen
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education of China, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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Castro KADF, Silva S, Pereira PMR, Simões MMQ, Neves MDGPMS, Cavaleiro JAS, Wypych F, Tomé JPC, Nakagaki S. Galactodendritic porphyrinic conjugates as new biomimetic catalysts for oxidation reactions. Inorg Chem 2015; 54:4382-93. [PMID: 25897563 DOI: 10.1021/acs.inorgchem.5b00196] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
This work employed [5,10,15,20-tetrakis(pentafluorophenyl)porphyrin] ([H2(TPPF20)], H2P1) as the platform to prepare a tetrasubstituted galactodendritic conjugate porphyrin (H2P3). After metalation with excess copper(II) acetate, H2P3 afforded a new solid porphyrin material, Cu4CuP3S. This work also assessed the ability of the copper(II) complex (CuP3) of H2P3 to coordinate with zinc(II) acetate, to yield the new material Zn4CuP3S. UV-visible, Fourier transform infrared, and electron paramagnetic resonance spectroscopies aided full characterization of the synthesized solids. (Z)-Cyclooctene epoxidation under heterogeneous conditions helped to evaluate the catalytic activity of Cu4CuP3S and Zn4CuP3S. The efficiency of Cu4CuP3S in the oxidation of another organic substrate, catechol, was also investigated. According to the results obtained in the heterogeneous process, Cu4CuP3S mimicked the activity of cytochrome P-450 and catecholase. In addition, Cu4CuP3S was reusable after recovery and reactivation. The data obtained herein were compared with the results achieved for the copper complex (CuP1) of [H2(TPPF20)] and for CuP3 under homogeneous conditions.
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Affiliation(s)
- Kelly A D F Castro
- †Laboratório de Química Bioinorgânica e Catálise, Universidade Federal do Paraná (UFPR), CP 19081, CEP 81531-990, Curitiba, Paraná Brazil
| | - Sandrina Silva
- ‡Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Patrícia M R Pereira
- ‡Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Mário M Q Simões
- ‡Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal
| | | | - José A S Cavaleiro
- ‡Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Fernando Wypych
- †Laboratório de Química Bioinorgânica e Catálise, Universidade Federal do Paraná (UFPR), CP 19081, CEP 81531-990, Curitiba, Paraná Brazil
| | - João P C Tomé
- ‡Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.,§Department of Organic and Macromolecular Chemistry, Ghent University, B-9000 Gent, Belgium
| | - Shirley Nakagaki
- †Laboratório de Química Bioinorgânica e Catálise, Universidade Federal do Paraná (UFPR), CP 19081, CEP 81531-990, Curitiba, Paraná Brazil
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Chohan S, Booysen IN, Mambanda A, Akerman MP. Synthesis, characterization and electrocatalytic behavior of cobalt and iron phthalocyanines bearing chromone or coumarin substituents. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1023196] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Sumayya Chohan
- School of Chemistry and Physics, University of Kwazulu-Natal, Pietermaritzburg, South Africa
| | - Irvin Noel Booysen
- School of Chemistry and Physics, University of Kwazulu-Natal, Pietermaritzburg, South Africa
| | - Allen Mambanda
- School of Chemistry and Physics, University of Kwazulu-Natal, Pietermaritzburg, South Africa
| | - Matthew Piers Akerman
- School of Chemistry and Physics, University of Kwazulu-Natal, Pietermaritzburg, South Africa
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11
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Syntheses, structures and catalytic activities of dinuclear copper complexes with tetradentate diaminebis (phenolate) ligands. TRANSIT METAL CHEM 2015. [DOI: 10.1007/s11243-015-9913-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Dumrul H, Yuksel F. Synthesis and characterization of novel symmetrical and asymmetrical substituted Zn(II) phthalocyanines. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.07.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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13
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Lunardi CN, Rotta JCG, Tedesco AC. Zinc tetranitrophthalocyanine: isomer separation and photophysical photobiological evaluation in J774A tumor cells. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424603000628] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The synthesis of zinc tetranitrophthalocyanine ( T 4 NO 2 ZnPc ) was carried out and two structural isomers ( C 2v and C s) were separated by column chromatography and characterized by 400 MHz proton nuclear resonance spectroscopy and absorption spectroscopy. The photophysical and photobiological parameters for isomers C 2v and C s were determined in solution and in the presence of macrophage cell culture (J774A). The results obtained clearly indicated that the photophysical, photochemical and photobiological properties of the two isomers were different and each isomer showed a different biological behavior.
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Affiliation(s)
- Claure N. Lunardi
- Departamento de Química, FFCLRP, Universidade de São Paulo, Av. Bandeirantes 3900, 14040-901, Ribeirão Preto, S. P., Brasil
| | - Jeane C. G. Rotta
- Departamento de Química, FFCLRP, Universidade de São Paulo, Av. Bandeirantes 3900, 14040-901, Ribeirão Preto, S. P., Brasil
| | - Antonio C. Tedesco
- Departamento de Química, FFCLRP, Universidade de São Paulo, Av. Bandeirantes 3900, 14040-901, Ribeirão Preto, S. P., Brasil
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Gao Z, Liang J, Tao X, Cui Y, Satoh T, Kakuchi T, Duan Q. Synthesis of star-shaped poly(N-isopropylacrylamide) via atom transfer radical polymerization and its photocatalytic oxidation of Rhodamine B. Macromol Res 2012. [DOI: 10.1007/s13233-012-0046-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Hamberger A, Popa AM, Rossi RM, Kattnig DR, Hinderberger D, Landfester K, Crespy D. End-of-life indicators based on temperature switchable nanobombs. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm30333g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Rezaeifard A, Jafarpour M, Naeimi A, Salimi M. Efficient and highly selective aqueous oxidation of alcohols and sulfides catalyzed by reusable hydrophobic copper (II) phthalocyanine. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2011.10.033] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Gao Z, Tao X, Cui Y, Satoh T, Kakuchi T, Duan Q. Synthesis of end-functionalized poly(N-isopropylacrylamide) with group of asymmetrical phthalocyanine via atom transfer radical polymerization and its photocatalytic oxidation of Rhodamine B. Polym Chem 2011. [DOI: 10.1039/c1py00308a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Wang RM, Hao EX, Shen GR, He YF, Lei ZQ. Polymeric Salphen-phthalocyanine dinuclear metal complexes for activation of molecular oxygen. J Appl Polym Sci 2009. [DOI: 10.1002/app.29277] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Pirouzmand M, Amini MM, Safari N. Immobilization of iron tetrasulfophthalocyanine on functionalized MCM-48 and MCM-41 mesoporous silicas: catalysts for oxidation of styrene. J Colloid Interface Sci 2007; 319:199-205. [PMID: 18067913 DOI: 10.1016/j.jcis.2007.11.024] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2007] [Revised: 11/14/2007] [Accepted: 11/18/2007] [Indexed: 10/22/2022]
Abstract
Iron tetrasulfophthalocyanine (FePcS) has been anchored on the surface of functionalized MCM-48 and MCM-41 silicas by means of chemical bonding to aminosilane groups. The prepared materials, FePcS/NH2-MCM-48 and FePcS/NH2-MCM-41, were characterized by diffuse reflectance UV-vis and infrared (IR) spectroscopies, low-angle X-ray diffraction (XRD), and surface area analysis (BET). The tendencies of FePcS absorption on functionalized MCM-48 and MCM-41 were measured by UV-vis spectroscopy. The functionalized MCM-48 showed a larger amine to silica ratio than the functionalized MCM-41. Low-angle X-ray diffraction analysis showed that, by anchoring iron tetrasulfophthalocyanine into functionalized MCM-48 and MCM-41, the intensity of main reflection decreased. The catalytic activities of the supported iron tetrasulfophthalocyanine were examined by the oxidation of styrene in the presence of tert-butyl hydroperoxide. The FePcS/NH2-MCM-48 showed higher activity and durability in the liquid-phase oxidation of styrene under mild condition compared with the FePcS/NH2-MCM-41 and unsupported catalyst.
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Affiliation(s)
- Mahtab Pirouzmand
- Department of Chemistry, Shahid Beheshti University, Tehran 1983963113, Iran
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Nedİm Misir M, Kantekin H, Gök Y, Misir G. Synthesis and characterization of new copperphthalocyanine carrying mixed donor macrocyclic moieties. J COORD CHEM 2007. [DOI: 10.1080/00958970600579961] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- M. Nedİm Misir
- a Department of Chemistry , Karadeniz Technical University , 61080 Trabzon, Turkey
| | - Halıt Kantekin
- a Department of Chemistry , Karadeniz Technical University , 61080 Trabzon, Turkey
| | - Yaşar Gök
- b Department of Chemistry , Pamukkale University , 20100 Kınıklı-Denizli, Turkey
| | - Gülbin Misir
- a Department of Chemistry , Karadeniz Technical University , 61080 Trabzon, Turkey
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Abdurrahmanoğlu Ş, Altındal A, Bulut M, Bekaroğlu Ö. Synthesis and electrical properties of novel supramolecular octa-phthalocyaninato-dicobalt(II)-hexazinc(II) and dicobalt(II)-dimeric-phthalocyanine with six ferrocenylimin pendant groups. Polyhedron 2006. [DOI: 10.1016/j.poly.2006.07.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Finazzo C, Calle C, Stoll S, Van Doorslaer S, Schweiger A. Matrix effects on copper(II)phthalocyanine complexes. A combined continuous wave and pulse EPR and DFT study. Phys Chem Chem Phys 2006; 8:1942-53. [PMID: 16633682 DOI: 10.1039/b516184c] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of the electron withdrawing or donating character of groups located at the periphery of the phthalocyanine ligand, as well as the influence of polar and nonpolar solvents are of importance for the redox chemistry of metal phthalocyanines. Continuous wave and pulse electron paramagnetic resonance and pulse electron nuclear double resonance spectroscopy at X- and Q-band are applied to investigate the electronic structure of the complexes Cu(II)phthalocyanine (CuPc), copper(II) 2,9,16,23-tetra-tert-butyl-29H,31H-phthalocyanine (CuPc(t)), and copper(II) 1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-hexadecafluoro-29H,31H-phthalocyanine (CuPc(F)) in various matrices. Isotope substitutions are used to determine the g values, the copper hyperfine couplings and the hyperfine interactions with the 14N, 1H and 19F nuclei of the macrocycle and the surrounding matrix molecules. Simulations and interpretations of the spectra are shown and discussed, and a qualitative analysis of the data using previous theoretical models is given. Density functional computations facilitate the interpretation of the EPR parameters. The experimental g, copper and nitrogen hyperfine and nuclear quadrupole values are found to be sensitive to changes of the solvent and the structure of the macrocycle. To elucidate the electronic, structural and bonding properties the changes in the g principal values are related to data from UV/Vis spectroscopy and to density functional theory (DFT) computations. The analysis of the EPR data indicates that the in-plane metal-ligand sigma bonding is more covalent for CuPc(t) in toluene than in sulfuric acid. Furthermore, the out-of-plane pi bonding is found to be less covalent in the case of a polar sulfuric acid environment than with nonpolar toluene or H2Pc environment, whereby the covalency of this bonding is increased upon addition of tert-butyl groups. No contribution from in-plane pi bonding is found.
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Affiliation(s)
- Cinzia Finazzo
- Physical Chemistry Laboratory, ETH Zurich, 8093, Zurich, Switzerland
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Sehlotho N, Nyokong T. Catalytic activity of iron and cobalt phthalocyanine complexes towards the oxidation of cyclohexene using tert-butylhydroperoxide and chloroperoxybenzoic acid. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.molcata.2003.08.014] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Iliev V, Tomova D, Bilyarska L, Prahov L, Petrov L. Phthalocyanine modified TiO2 or WO3-catalysts for photooxidation of sulfide and thiosulfate ions upon irradiation with visible light. J Photochem Photobiol A Chem 2003. [DOI: 10.1016/s1010-6030(03)00170-9] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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