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Vidal J, Báez ME, Calzadilla W, Aranda M, Salazar R. Removal of chloridazon and its metabolites from soil and soil washing water by electrochemical processes. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Daoui S, Faizi MSH, Kalai FE, Saddik R, Dege N, Karrouchi K, Benchat N. Crystal structure and the DFT and MEP study of 4-benzyl-2-[2-(4-fluoro-phen-yl)-2-oxoeth-yl]-6-phenyl-pyridazin-3(2 H)-one. Acta Crystallogr E Crystallogr Commun 2019; 75:1030-1034. [PMID: 31392019 PMCID: PMC6659327 DOI: 10.1107/s2056989019008557] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 06/15/2019] [Indexed: 11/10/2022]
Abstract
The title pyridazin-3(2H)-one derivative, C25H19FN2O2, crystallizes with two independent mol-ecules (A and B) in the asymmetric unit. In mol-ecule A, the 4-fluoro-phenyl ring, the benzyl ring and the phenyl ring are inclined to the central pyridazine ring by 86.54 (11), 3.70 (9) and 84.857 (13)°, respectively. In mol-ecule B, the corresponding dihedral angles are 86.80 (9), 10.47 (8) and 82.01 (10)°, respectively. In the crystal, the A mol-ecules are linked by pairs of C-H⋯F hydrogen bonds, forming inversion dimers with an R 2 2(28) ring motif. The dimers are linked by C-H⋯O hydrogen bonds and a C-H⋯π inter-action, forming columns stacking along the a-axis direction. The B mol-ecules are linked to each other in a similar manner and form columns separating the columns of A mol-ecules.
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Affiliation(s)
- Said Daoui
- Laboratory of Applied Chemistry and Environment (LCAE), Department of Chemistry, Faculty of Sciences, University Mohamed Premier, Oujda 60000, Morocco
| | - Md. Serajul Haque Faizi
- Department of Chemistry, Langat Singh College, Babasaheb Bhimrao Ambedkar Bihar University, Muzaffarpur, Bihar-842001, India
| | - Fouad El Kalai
- Laboratory of Applied Chemistry and Environment (LCAE), Department of Chemistry, Faculty of Sciences, University Mohamed Premier, Oujda 60000, Morocco
| | - Rafik Saddik
- Laboratory of Organic Synthesis, Extraction and Development, Faculty of Sciences, Hassan II University, Casablanca, Morocco
| | - Necmi Dege
- Ondokuz Mayıs University, Faculty of Arts and Sciences, Department of Physics, 55139, Kurupelit, Samsun, Turkey
| | - Khalid Karrouchi
- Laboratory of Plant Chemistry, Organic and Bioorganic Synthesis, URAC23, Faculty of Science, BP 1014, GEOPAC Research Center, Mohammed V University, Rabat, Morocco
| | - Noureddine Benchat
- Laboratory of Applied Chemistry and Environment (LCAE), Department of Chemistry, Faculty of Sciences, University Mohamed Premier, Oujda 60000, Morocco
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Zaoui Y, Ramli Y, Taoufik J, Mague JT, Jotani MM, Tiekink ERT, Ansar M. Ethyl 2-(4-benzyl-3-methyl-6-oxo-1,6-dihydropyridazin-1-yl)acetate: crystal structure and Hirshfeld surface analysis. Acta Crystallogr E Crystallogr Commun 2019; 75:392-396. [PMID: 30867956 PMCID: PMC6399698 DOI: 10.1107/s205698901900241x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 02/15/2019] [Indexed: 11/10/2022]
Abstract
The title compound, C16H18N2O3, is constructed about a central oxopyridazinyl ring (r.m.s. deviation = 0.0047 Å), which is connected to an ethyl-acetate group at the N atom closest to the carbonyl group, and benzyl and methyl groups second furthest and furthest from the carbonyl group, respectively. An approximately orthogonal relationship exists between the oxopyridazinyl ring and the best plane through the ethyl-acetate group [dihedral angle = 77.48 (3)°]; the latter lies to one side of the central plane [the Nr-Nr-Cm-Cc (r = ring, m = methyl-ene, c = carbon-yl) torsion angle being 104.34 (9)°]. In the crystal, both H atoms of the N-bound methyl-ene group form methyl-ene-C-H⋯O(ring carbon-yl) or N(pyridazin-yl) inter-actions, resulting in the formation of a supra-molecular tape along the a-axis direction. The tapes are assembled into a three-dimensional architecture by methyl- and phenyl-C-H⋯O(ring carbon-yl) and phenyl-C-H⋯O(ester carbon-yl) inter-actions. The analysis of the calculated Hirshfeld surface indicates the dominance of H⋯H contacts to the overall surface (i.e. 52.2%). Reflecting other identified points of contact between mol-ecules noted above, O⋯H/H⋯O (23.3%), C⋯H/H⋯C (14.7%) and N⋯H/H⋯N (6.6%) contacts also make significant contributions to the surface.
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Affiliation(s)
- Younes Zaoui
- Laboratory of Medicinal Chemistry, Drug Sciences Research Center, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco
| | - Youssef Ramli
- Laboratory of Medicinal Chemistry, Drug Sciences Research Center, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco
| | - Jamal Taoufik
- Laboratory of Medicinal Chemistry, Drug Sciences Research Center, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco
| | - Joel T. Mague
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA
| | - Mukesh M. Jotani
- Department of Physics, Bhavan’s Sheth R. A. College of Science, Ahmedabad, Gujarat 380001, India
| | - Edward R. T. Tiekink
- Research Centre for Crystalline Materials, School of Science and Technology, Sunway University, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - M’hammed Ansar
- Laboratory of Medicinal Chemistry, Drug Sciences Research Center, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco
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Mbiri A, Wittstock G, Taffa DH, Gatebe E, Baya J, Wark M. Photocatalytic degradation of the herbicide chloridazon on mesoporous titania/zirconia nanopowders. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:34873-34883. [PMID: 29264852 DOI: 10.1007/s11356-017-1023-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 12/11/2017] [Indexed: 06/07/2023]
Abstract
Advanced oxidation processes using semiconducting photocatalysts for the degradation of organic pollutants are a promising approach for the remediation of pesticide-contaminated wastewater. High photodegradation efficiency and stability of the photocatalyst are of key importance for practical application of the semiconductor. In this study, mesoporous TiO2/ZrO2 nanopowders were synthesized via two techniques; evaporation-induced self-assembly (EISA) and sol-gel using triblock copolymers Pluronic P123 and F127. The photodegradation activities of the composites were determined by employing the herbicide chloridazon as a model compound. Due to well-developed mesoporosity, the TiO2/ZrO2 nanocomposite synthesized by EISA displays high surface area and small crystallite sizes leading to higher photocatalytic activity than pristine TiO2 prepared under similar condition and commercial Degussa P25 nanopowder. The optimum amount of zirconium required for the highest activities was identified and found to be 0.14 and 0.05 mol% for the EISA and sol-gel-prepared samples, respectively. Systematic studies of the post-thermal treatment step for both samples show that Zr inhibits an anatase-to-rutile phase transition only up to 600 °C, at higher temperature phase separation occurs. Samples synthesized by EISA method showed enhanced degradation activity than sol-gel-synthesized samples.
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Affiliation(s)
- Anne Mbiri
- Institute of Chemistry, Carl von Ossietzky University Oldenburg, 26129, Oldenburg, Germany
- Pure and applied Sciences, Technical University of Mombasa, 90420, Mombasa, 80100, Kenya
| | - Gunther Wittstock
- Institute of Chemistry, Carl von Ossietzky University Oldenburg, 26129, Oldenburg, Germany
| | - Dereje H Taffa
- Institute of Chemistry, Carl von Ossietzky University Oldenburg, 26129, Oldenburg, Germany.
| | - Erastus Gatebe
- Department of Chemistry, Jomo Kenyatta University of Agriculture and Technology, 62000, Nairobi, 00200, Kenya
| | - Joseph Baya
- Pure and applied Sciences, Technical University of Mombasa, 90420, Mombasa, 80100, Kenya
| | - Michael Wark
- Institute of Chemistry, Carl von Ossietzky University Oldenburg, 26129, Oldenburg, Germany
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