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Dey L, Rabi S, Begum ZA, Takase T, Rahman IMM, Tiekink ERT, Roy TG. Redetermination of the crystal structure of (2E,4Z,13E,15Z)-3,5,14,16-tetramethyl-2,6,13,17-tetraazatricyclo[16.4.0.07,12]docosa-1(22),2,4,7,9,11,13,15,18,20-decaene, C22H24N4. Z KRIST-NEW CRYST ST 2021. [DOI: 10.1515/ncrs-2021-0244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C22H24N4, triclinic,
P
1
‾
$P‾{1}$
(no. 2), a = 9.217(4) Å, b = 9.774(4) Å, c = 10.843(4) Å, α = 96.770(2)°, β = 101.791(5)°, γ = 105.873(3)°, V = 903.9(6) Å3, Z = 2, R
gt
(F) = 0.0391, wR
ref
(F
2) = 0.1069, T = 93(2) K.
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Affiliation(s)
- Lucky Dey
- Department of Chemistry , Faculty of Science, University of Chittagong , Chattogram 4331 , Bangladesh
| | - Saswata Rabi
- Department of Chemistry , Faculty of Science, University of Chittagong , Chattogram 4331 , Bangladesh
- Department of Chemistry , Faculty of Engineering & Technology, Chittagong University of Engineering & Technology , Chattogram 4349 , Bangladesh
| | - Zinnat A. Begum
- Institute of Environmental Radioactivity, Fukushima University , 1 Kanayagawa, Fukushima City , Fukushima 960-1296 , Japan
- Department of Civil Engineering , Southern University Bangladesh , Arefin Nagar, Bayezid Bostami , Chattogram 4210 , Bangladesh
| | - Tsugiko Takase
- Department of Natural Sciences and Informatics , Fukushima University , 1 Kanayagawa , Fukushima 960-1296 , Japan
| | - Ismail M. M. Rahman
- Institute of Environmental Radioactivity, Fukushima University , 1 Kanayagawa, Fukushima City , Fukushima 960-1296 , Japan
| | - Edward R. T. Tiekink
- Research Centre for Crystalline Materials, School of Science and Technology, Sunway University , 47500 Bandar Sunway , Selangor Darul Ehsan , Malaysia
| | - Tapashi Ghosh Roy
- Department of Chemistry , Faculty of Science, University of Chittagong , Chattogram 4331 , Bangladesh
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2
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Evaluation of novel imino-phenol ligands in divalent metal ion extraction/recovery processes from leaching solutions. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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3
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El-Hnayn R, Canabady-Rochelle L, Desmarets C, Balan L, Rinnert H, Joubert O, Medjahdi G, Ben Ouada H, Schneider R. One-Step Synthesis of Diamine-Functionalized Graphene Quantum Dots from Graphene Oxide and Their Chelating and Antioxidant Activities. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E104. [PMID: 31947956 PMCID: PMC7023243 DOI: 10.3390/nano10010104] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 12/24/2019] [Accepted: 12/27/2019] [Indexed: 12/19/2022]
Abstract
2,2'-(Ethylenedioxy)bis(ethylamine)-functionalized graphene quantum dots (GQDs) were prepared under mild conditions from graphene oxide (GO) via oxidative fragmentation. The as-prepared GQDs have an average diameter of ca. 4 nm, possess good colloidal stability, and emit strong green-yellow light with a photoluminescence (PL) quantum yield of 22% upon excitation at 375 nm. We also demonstrated that the GQDs exhibit high photostability and the PL intensity is poorly affected while tuning the pH from 1 to 8. Finally, GQDs can be used to chelate Fe(II) and Cu(II) cations, scavenge radicals, and reduce Fe(III) into Fe(II). These chelating and reducing properties that associate to the low cytotoxicity of GQDs show that these nanoparticles are of high interest as antioxidants for health applications.
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Affiliation(s)
- Rabeb El-Hnayn
- Laboratoire des Interfaces et des Matériaux Avancés, Faculté des Sciences de Monastir, Avenue de l’Environnement, 5019 Monastir, Tunisia; (R.E.-H.); (H.B.O.)
| | | | - Christophe Desmarets
- Institut Parisien de Chimie Moléculaire UMR-CNRS 8232, Sorbonne Université, 4 Place Jussieu, 75252 Paris CEDEX 5, France;
| | - Lavinia Balan
- Institut de Science des Matériaux de Mulhouse (IS2M), CNRS, UMR 7361, 15 rue Jean Starcky, 68093 Mulhouse, France;
- CEMHTI-UPR3079 CNRS, Site Haute Température, 1D avenue de la Recherche Scientifique, 45071 Orléans, France
| | - Hervé Rinnert
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, 54506 Vandoeuvre-lès-Nancy CEDEX, France; (H.R.); (O.J.); (G.M.)
| | - Olivier Joubert
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, 54506 Vandoeuvre-lès-Nancy CEDEX, France; (H.R.); (O.J.); (G.M.)
| | - Ghouti Medjahdi
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, 54506 Vandoeuvre-lès-Nancy CEDEX, France; (H.R.); (O.J.); (G.M.)
| | - Hafedh Ben Ouada
- Laboratoire des Interfaces et des Matériaux Avancés, Faculté des Sciences de Monastir, Avenue de l’Environnement, 5019 Monastir, Tunisia; (R.E.-H.); (H.B.O.)
| | - Raphaël Schneider
- Laboratoire Réactions et Génie des Procédés, LRGP, Université de Lorraine, CNRS, F-54000 Nancy, France;
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Sangwan V, Singh DP. In-vitro
DNA binding and antimicrobial studies of trivalent transition metal ion based macrocyclic complexes. VIETNAM JOURNAL OF CHEMISTRY 2019. [DOI: 10.1002/vjch.201900058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vikas Sangwan
- Department of Chemistry; National Institute of Technology; Kurukshetra -136119 India
| | - D. P. Singh
- Department of Chemistry; National Institute of Technology; Kurukshetra -136119 India
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5
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Szady-Chełmieniecka A, Kołodziej B, Morawiak M, Kamieński B, Schilf W. Spectroscopic studies of the intramolecular hydrogen bonding in o-hydroxy Schiff bases, derived from diaminomaleonitrile, and their deprotonation reaction products. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 189:330-341. [PMID: 28830038 DOI: 10.1016/j.saa.2017.08.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 08/03/2017] [Accepted: 08/09/2017] [Indexed: 06/07/2023]
Abstract
The structural study of five Schiff bases derived from diaminomaleonitrile (DAMN) and 2-hydroxy carbonyl compounds was performed using 1H, 13C and 15N NMR methods in solution and in the solid state as well. ATR-FTIR and X-Ray spectroscopies were used for confirmation of the results obtained by NMR method. The imine obtained from DAMN and benzaldehyde was synthesized as a model compound which lacks intramolecular hydrogen bond. Deprotonation of all synthesized compounds was done by treating with tetramethylguanidine (TMG). NMR data revealed that salicylidene Schiff bases in DMSO solution exist as OH forms without intramolecular hydrogen bonds and independent on the substituents in aromatic ring. In the case of 2-hydroxy naphthyl derivative, the OH proton is engaged into weak intramolecular hydrogen bond. Two of imines (salDAMN and 5-BrsalDAMN) exist in DMSO solution as equilibrium mixtures of two isomers (A and B). The structures of equilibrium mixture in the solid state have been studied by NMR, ATR-FTIR and X-Ray methods. The deprotonation of three studied compounds (salDAMN, 5-BrsalDAMN, and 5-CH3salDAMN) proceeded in two different ways: deprotonation of oxygen atom (X form) or of nitrogen atom of free primary amine group of DAMN moiety (Y form). For 5-NO2salDAMN and naphDAMN only one form (X) was observed.
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Affiliation(s)
- Anna Szady-Chełmieniecka
- West Pomeranian University of Technology, Faculty of Chemical Technology and Engineering, Department of Inorganic and Analytical Chemistry, Al. Piastów 42, 71-065 Szczecin, Poland
| | - Beata Kołodziej
- West Pomeranian University of Technology, Faculty of Chemical Technology and Engineering, Department of Inorganic and Analytical Chemistry, Al. Piastów 42, 71-065 Szczecin, Poland.
| | - Maja Morawiak
- Institute of Organic Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Bohdan Kamieński
- Institute of Organic Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224 Warsaw, Poland; Institute of Physical Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Wojciech Schilf
- Institute of Organic Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224 Warsaw, Poland
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6
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Guerdouh A, Barkat D. Influence of the solvent on the extraction of copper(II) from nitrate medium using salicylideneaniline. J DISPER SCI TECHNOL 2017. [DOI: 10.1080/01932691.2016.1215926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Amel Guerdouh
- Laboratory of Chemical Molecular and Environment, Department of Industrial Chemistry, Faculty of Science and Technology, Biskra University, Biskra, Algeria
| | - Djamel Barkat
- Laboratory of Chemical Molecular and Environment, Department of Industrial Chemistry, Faculty of Science and Technology, Biskra University, Biskra, Algeria
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7
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Gopi C, Sastry VG, Dhanaraju MD. Microwave-assisted synthesis, structural activity relationship and biological activity of some new quinoxaline Schiff base derivatives as highly potent spirochete bactericidal agents. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2017. [DOI: 10.1016/j.bjbas.2016.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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8
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El-Boraey HA, El-Salamony MA, Hathout AA. Macrocyclic [N5] transition metal complexes: synthesis, characterization and biological activities. J INCL PHENOM MACRO 2016. [DOI: 10.1007/s10847-016-0649-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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