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Montazerozohori, M.
- Synthesis and Characterization of some New Four Coordinated IIB Transition Metal Ion Complexes
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Authors
Affiliations
1 Department of Chemistry, Yasouj University, Yasouj 75918-74831, IR
2 Department of Chemistry, Islamic Azad University, Yasouj Branch, Yasouj, IR
3 Department of Basic Science, Islamic Azad University, firoozabad Branch, Firoozabad, IR
1 Department of Chemistry, Yasouj University, Yasouj 75918-74831, IR
2 Department of Chemistry, Islamic Azad University, Yasouj Branch, Yasouj, IR
3 Department of Basic Science, Islamic Azad University, firoozabad Branch, Firoozabad, IR
Source
Indian Journal of Science and Technology, Vol 4, No 4 (2011), Pagination: 373-378Abstract
Complexes of Zn(II) and Hg(II) with new Schiff bases ligands of (N,N-bis(4-chlorobenzylidene)propane-1,2-diamine(L1), N,N-bis(3-nitrobenzylidene)propane-1,2-diamine(L2) and N,N-bis(4-nitrobenzylidene)propane-1,2-diamine(L3)) with general formula MLX2 in which X= Cl-, Br- and I- have been prepared using 1:1 metal-to-ligand ratios and characterized by elemental analysis, FT-Infrared and Ultraviolet-Visible spectra, 1H NMR (Nuclear Magnetic Resonance), 13C NMR and molar conductance. All compounds are non-electrolytes in DMF. The complexes exhibit a pseudo tetrahedral geometry around the metal center.Keywords
Schiff Base, Zinc Complex, Mercury Complex, Bidentate, AsymmetricalFull Text
References
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- Habibi MH, Montazerozohori M, Barati K, Harrington RW and Clegg W (2007a) Bis[N,N-(2- chlorobenzylidene)ethylenediamine- n: 2 N,N]copper(I) dichloridocuprate(I) acetonitrile solvate. Acta Cryst. C63, m592-m594.
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- Barati K, Habibi MH, Montazerozohori M, Shafieyan H, Harrington R and Clegg W (2009) Synthesis, crystal structure and photo-induced isomerization of [N,N'-bis(4-fluorobenzylidene) ethylenediamine] bromo(triphenylphosphine)copper(I)complex. J. Coord Chem. 62(3), 417-426
- Trace Metal Enrichment Using Gold Nanoparticle Loaded on Activated Carbon Modified with 1-((6-(-(2,4-dihydroxybenzylideneamino))hexylimino) Methyl)benzene-2, 4-diol
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Authors
Affiliations
1 Chemistry Department, Islamic Azad University, Omidiyeh Branch, Omidiyeh, IR
1 Chemistry Department, Islamic Azad University, Omidiyeh Branch, Omidiyeh, IR
Source
Indian Journal of Science and Technology, Vol 4, No 10 (2011), Pagination: 1234-1240Abstract
In this study, a new sorbent based on the modification of gold nanoparticle loaded on activated carbon (Au-NP-AC) with 1-((6-(-(2,4-dihydroxybenzylideneamino))hexylimino) methyl)benzene-2, 4-diol (DHBAHMB) was synthesis and its efficient application for trace metal enrichment was examined. The proposed sorbent (Au-NP-AC-DHBAHMB) has been applied for enrichment and preconcentration of trace amount of Cu2+, Fe3+ and Zn2+ ions in real samples. The metal ions retained on proposed sorbent via chelation with the DHBAHMB efficiency was eluted by HNO3 and detected by FAAS. The effect of analytical parameters including pH, amount of ligand and solid phase and the conditions (type, concentration and volume of eluent) of the eluent were optimized. Following optimization of variables, preconcentration factors of 165, 170 and 180 for Cu2+, Fe3+ and Zn2+ metal ions, respectively, with detection limits of 1.4-2.6 ng mL-1. The method has been applied for the extraction and determination of the ion content in same real sample with recoveries in range of 95-99.6 % and a relative standard deviation of (RSD lower than 4.0 %).Keywords
1-((6-(-(2,4-dihydroxybenzylideneamino))hexylimino) methyl)benzene-2, 4-diol (DHBAHMB), Gold Nanoparticle, Activated Carbon, Au-NP-ACFull Text
References
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- Synthesis and Spectral Investigation of some Zn (II), Hg (II), Co (II) and Cu (II) Schiff Base Complexes
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Authors
Affiliations
1 Department of Chemistry, Firoozabad Branch, Islamic Azad University, Firoozabad, IR
2 Department of Basic Sciences, Yasouj Branch, Islamic Azad University, Yasouj, IR
1 Department of Chemistry, Firoozabad Branch, Islamic Azad University, Firoozabad, IR
2 Department of Basic Sciences, Yasouj Branch, Islamic Azad University, Yasouj, IR
Source
Indian Journal of Science and Technology, Vol 4, No 11 (2011), Pagination: 1402-1406Abstract
Three symmetrical Schiff base ligands of N, N'-bis (2-chlorobenzylidene) ethane-1, 2-diamine (BCBEN), N,N'-bis (2- nitrobenzylidene) ethane-1,2-diamine and N,N'-bis (3-phenylallylidene)-o-phenylenediamine and some zinc (II), mercury (II), cobalt (II) and copper (II) complexes were synthesized and characterized by elemental analyses, 1H NMR, 13C NMR, FT-IR, UV-Visible spectra, and molar conductance. All compounds were found to be non-electrolytes in the dimethylsulfoxide solutions.Keywords
Schiff Base Complex, Thiocyanate, Spectral, SymmetricalFull Text
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- Chemical Functionalization of Silica Gel with 2-((3-silylpropylimino) Methyl) Phenol (spimp) and its Application for Solid Phase Extraction and Preconcentration of Fe (III), Pb (II), Cu (II), Ni (II), co (II) and Zn (II) Ions
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Authors
Affiliations
1 Chemistry Department, Islamic Azad University, Gachsaran Branch, Gachsaran, IR
1 Chemistry Department, Islamic Azad University, Gachsaran Branch, Gachsaran, IR
Source
Indian Journal of Science and Technology, Vol 5, No 1 (2012), Pagination: 1893-1900Abstract
2-((3-silylpropylimino) methyl) phenol chemically bonded silica gel were successfully applied for the enrichment of trace amount of Fe(III), Pb(II), Cu(II), Ni(II), Co(II) and Zn(II) ion prior to their determination by Flame Atomic Absorption Spectroscopy (FAAS). The influences of the analytical parameters including pH, amount of ligand and solid phase, type and condition of eluent and sample volume on the metal ions recoveries were investigated. The method has high sorption- preconcentration efficiency even in the presence of various interfering ions with the low limit of detection (1.4 - 2.6 μg L-1), the enrichment factor of 25.3, 28.2, 24.6, 20.1, 28.2 and 18.6 respectively for Ni2+, Zn2+, Ni2+, Pb2+, Cu2+ and Fe3+ ions, and relative standard deviation less than 4.0%, especially for their determination in real samples. Graphical correlation of various adsorption isotherm models like, Langmuir, Freundlich, Tempkin and Dubinin-Radushkevich have been carried out. The adsorption of these metal ions has been found endothermic and feasible in nature and various thermodynamic parameters such as Gibb's free energy, entropy and enthalpy of the on-going adsorption process has been calculated. The kinetic studies suggest the process following pseudo second order kinetics and involvement of particle diffusion mechanism.Keywords
Trace Metal Enrichment, Silica Gel, 2-((3-silylpropylimino) Methyl) Phenol, Atomic Absorption Spectrometry,Solid Phase ExtractionFull Text
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