... (sigma), electronegativity (chi), proton affinity, global electrophilicity (omega), global nucleophilicity (epsilon) and total energy (sum of electronic and zeropoint ... and (Delta G degrees), that obtained from Frumkin adsorption isotherm model.
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Record 1 of 28 Title: Quantum chemical calculations, molecular dynamics simulation and experimental studies of using some azo dyes as corrosion inhibitors for iron. Part 1: Monoazo dye derivatives Author(s): Madkour, LH (Madkour, Loutfy H.); Kaya, S (Kaya, Savas); Kaya, C (Kaya, Cemal); Guo, L (Guo, Lei) Source: JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS Volume: 68 Pages: 461480 DOI: 10.1016/j.jtice.2016.09.015 Published: NOV 2016 Abstract: This study consists of two parts. In the first part, the inhibitive performance of six monoazo dye (MAD_ 1 6 ) derivatives was investigated experimentally (gravimetric, thermometric, UVvisible spectrophotometric and electrochemical potentiostatic methods) and computationally against corrosion of Fe metal in 2 M HNO3 and 2 M NaOH solutions. Density functional theory (DFT) calculations and molecular dynamics simulation (MDS) approach were performed. Quantum chemical parameters such as the highest occupied molecular orbital energy (EHOMO ), lowest unoccupied molecular orbital energy (ELUMO), the energy gap between ELUMO and EHOMO (Delta E ), dipole moment (D ), chemical hardness (eta), softness (sigma), electronegativity (chi), proton affinity, global electrophilicity (omega), global nucleophilicity (epsilon) and total energy (sum of electronic and zeropoint energies) were calculated and discussed with the help of HF/SDD, HF/6311 G, HF/631++G, B3LYP/SDD, B3LYP/6311 G and B3LYP/631++G methods. Polarization measurements indicate that (MAD) compounds are of mixedtype inhibitor in acidic, act mainly as cathodic in alkaline solution. Kinetic model involving binding constant (Kb ), active sites (1/y) and standard free energy values of adsorption (Delta G degrees) were compared with the parameters of equilibrium constant (Kads ), lateral interaction (f ) and (Delta G degrees), that obtained from Frumkin adsorption isotherm model. Then, we calculated binding energies on Fe (110) surface of the inhibitors. The theoretical data obtained are in good agreement with the experimental inhibition efficiency results. Accession Number: WOS:000388046800055 Author Identifiers:
Author
ResearcherID Number
MADKOUR, LOUTFY Guo, Lei
ORCID Number 0000000231018356 0000000178499583
ISSN: 18761070 eISSN: 18761089 Record 2 of 28 Title: Quantum chemical and molecular dynamics simulation studies on inhibition performances of some thiazole and thiadiazole derivatives against corrosion of iron Author(s): Kaya, S (Kaya, Savas); Kaya, C (Kaya, Cemal); Guo, L (Guo, Lei); Kandemirli, F (Kandemirli, Fatma); Tuzun, B (Tuzun, Burak); Ugurlu, I (Ugurlu, Ilkay); Madkour, LH (Madkour, Loutfy H.); Saracoglu, M (Saracoglu, Murat) Source: JOURNAL OF MOLECULAR LIQUIDS Volume: 219 Pages: 497504 DOI: 10.1016/j.molliq.2016.03.042 Published: JUL 2016 Abstract: In the present study, to predict corrosion inhibition performances of 2amino4(4chlorophenyl)thiazole (Inh1), 2amino4(4bromophenyl)thiazole (Inh2), 4(2aminothiazole4yl)phenol (Inh3), 5,5'(ethane1,2diyldisulfanediyl) bis(1,3,4thiadiazole2amine) (Inh4), 5,5'(propane1,3diyldisulfanediyl) bis(1,3,4 thiadiazole2amine) (Inh5) against corrosion of Fe metal, density functional theory (DFT) calculations and molecular dynamics simulations approach were performed on these mentioned molecules. Firstly, quantum chemical parameters such as the highest occupied molecular orbital energy (EHOMO), lowest unoccupied molecular orbital energy (ELUMO), the energy gap between ELUMO, and EHOMO (Delta E), chemical hardness, softness, electronegativity, proton affinity, global electrophilicity, global nucleophilicity and total energy (sum of electronic and zeropoint energies) were calculated and discussed with the help of HF/SDD, HF/6311G, HF/631 ++G, B3LYP/SDD, B3LYP/6311G and B3LYP/631 ++G methods. Then, we calculated binding energies on Fe(110) surface of aforementioned thiazole and thiadiazole derivatives to investigate the strength of the interactions between metal surface and these molecules. The theoretical data obtained are in good agreement with the experimental inhibition efficiency results earlier reported. (C) 2016 Elsevier B.V. All rights reserved. Accession Number: WOS:000378450100062 Author Identifiers:
Author
ResearcherID Number
MADKOUR, LOUTFY Guo, Lei
ORCID Number 0000000231018356 0000000178499583
ISSN: 01677322 eISSN: 18733166 Record 3 of 28 Title: Experimental and computational studies on the inhibition performances of benzimidazole and its derivatives for the corrosion of copper in nitric acid Author(s): Madkour, LH (Madkour, Loutfy H.); Elshamy, IH (Elshamy, I. H.) Source: INTERNATIONAL JOURNAL OF INDUSTRIAL CHEMISTRY Volume: 7 Issue: 2 Pages: 195221 DOI: 10.1007/s4009001500708 Published: JUN 2016 Abstract: The inhibitive performance of seven synthesized 2(2benzimidazolyl)4 (phenylazo) phenol (BPP_17) derivatives was investigated experimentally on the corrosion of copper in 2.0 MHNO3 acid using mass loss, thermometric and DC potentiodynamic polarization techniques. Quantum chemical calculations was investigated to correlate the electronic structure parameters of the investigated benzimidazole derivatives with their inhibition efficiencies (IE%) values. Global reactivity parameters such as EHOMO, ELUMO, the energy gap between ELUMO and EHOMO (Delta E), chemical hardness, softness, electronegativity, proton affinity, electrophilicity and nucleophilicity have been calculated and discussed. Molecular dynamics simulation was applied on the compounds, to optimize the equilibrium configurations of the molecules on the copper surface. The areas containing N atoms are most possible sites for bonding Cu (111) surface by donating electrons. Binding constant (Kb), active sites (1/y), lateral interaction (f), equilibrium constant (Kads) and standard free energy of adsorption (Delta G degrees) values obtained from either kinetic model and/or Frumkin adsorption isotherm were compared and discussed. Thermodynamic functions and activation parameters such as: Ea, Delta H*, Delta S* and Delta G* at temperatures 303, 313, 323 and 333 K were determined and explained. IE% values of the examined compounds on Cu (111) surface followed the order arrangement: BPP_1 > BPP_2 > BPP_3 > BPP_4 > BPP_5 > BPP_6 > BPP_7. The theoretical data obtained as compatible with experimental results showed that the studied benzimidazole derivatives (BPP_17) are effective inhibitors for the corrosion of copper in nitric acid solution. Accession Number: WOS:000387168700009 Author Identifiers:
Author MADKOUR, LOUTFY
ResearcherID Number
ORCID Number 0000000231018356
ISSN: 22285547 Record 4 of 28 Title: Inhibitive properties, thermodynamic, kinetics and quantum chemical calculations of polydentate Schiff base compounds as corrosion inhibitors for iron in acidic and alkaline media Author(s): Madkour, LH (Madkour, Loutfy H.); Elroby, SK (Elroby, S. K.) Source: INTERNATIONAL JOURNAL OF INDUSTRIAL CHEMISTRY Volume: 6 Issue: 3 Pages: 165184 DOI: 10.1007/s4009001500397 Published: SEP 2015 Abstract: Quantum chemical calculations based on the density functional theory (DFT) method were performed on five polydentate Schiff base compounds (PSCs), act as corrosion inhibitors for iron in aerated 2.0 M HNO3 and 2.0 M NaOH, aiming to analyze the characteristics of the inhibitor/surface mechanism as well as to analyze the experimental data and to describe the structural nature of the inhibitor on the corrosion process. The relationship between molecular structure of PSC and their inhibition efficiencies was discussed. The inhibition effect has been investigated using weight loss, thermometric, potentiodynamic polarization measurements and quantum chemical
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study. Among the compounds studied, 4(2hydroxynaphthylideneamino) antipyrine (PSC_1) exhibited the best inhibition efficiency IE (%) 78.4 % at 10(4) M at 303 K. The high IE of (PSCs) was attributed to the blocking of active sites by adsorption of inhibitor molecules on the iron surface. Adsorption of (PSCs) inhibitors is spontaneous, exothermic, obeyed Temkin isotherm and is regarded as physiochemical mechanism. Polarization measurements indicate that all the examined Schiff bases are of mixedtype inhibitor in HNO3; causing only inhibition of the cathode process in NaOH. The results showed that the inhibition efficiency of PSCs increased with the increase in EHOMO and decrease in ELUMO EHOMO; and the areas containing N and O atoms are most possible sites for bonding the metal iron surface by donating electrons to the metal. Accession Number: WOS:000367523500004 Author Identifiers:
Author
ResearcherID Number
Elroby, Shabaan A18292011 MADKOUR, LOUTFY
ORCID Number 0000000231018356
ISSN: 22285547 Record 5 of 28 Title: Inhibition effect of hydantoin compounds on the corrosion of iron in nitric and sulfuric acid solutions Author(s): Madkour, LH (Madkour, LH); Hassanein, AM (Hassanein, AM); Ghoneim, MM (Ghoneim, MM); Eid, SA (Eid, SA) Source: MONATSHEFTE FUR CHEMIE Volume: 132 Issue: 2 Pages: 245258 DOI: 10.1007/s007060170134 Published: FEB 2001 Abstract: The inhibition of corrosion of iron in 2M nitric acid and 2M sulfuric acid solutions by substituted phenylhydantoin, thiohydantoin, and dithiohydantoin compounds was measured using thermometric, weight loss, and polarization methods. The three methods gave consistent results. The polarization curves indicated that the hydantoin compounds act as mixedtype inhibitors. The adsorption of the inhibitors were found to obey the Temkin adsorption isotherm. The higher inhibition efficiency of the additives in nitric with respect to sulfuric acid solution may be attributed to the reduced formation of soluble quaternary nitrogen salts in nitric acid medium, favouring adsorption of the parent additive on the metal surface. The obtained results indicate that the corrosion rate of iron in both acids increases with increasing temperature, both in absence and presence of the tested inhibitors. Kineticthermodynamic model functions and Temkin isotherm data an compared and discussed. The synergistic effect of halide anions on the inhibition efficiency of the hydantoin compounds was also investigated. Accession Number: WOS:000167593400005 Author Identifiers:
Author
ResearcherID Number
MADKOUR, LOUTFY
ORCID Number 0000000231018356
ISSN: 00269247 Record 6 of 28 Title: Kinetics of substituted bis and monoazo dyes as corrosion inhibitors for aluminium in hydrochloric acid and sodium hydroxide solutions Author(s): Madkour, LH (Madkour, LH); Issa, RM (Issa, RM); ElGhrabawy, IM (ElGhrabawy, IM) Source: JOURNAL OF CHEMICAL RESEARCHS Issue: 7 Pages: 408409A DOI: 10.1039/a805608k Published: JUL 1999 Abstract: This investigation is designed to apply an advanced kineticthermodynamic model on the data obtained from acidic and alkaline corrosion of aluminium using bis and monoate dyes as corrosion inhibitors. Accession Number: WOS:000082122500002 Author Identifiers:
Author
ResearcherID Number
MADKOUR, LOUTFY
ORCID Number 0000000231018356
ISSN: 03082342 Record 7 of 28 Title: Electrochemical behaviour of 3Arylazo1,2,4triazole compounds in aqueous buffered solutions Author(s): Madkour, LH (Madkour, LH) Source: JOURNAL OF CHEMICAL RESEARCHS Issue: 9 Pages: 514515 DOI: 10.1039/a800519b Published: SEP 1998 Abstract: A variety of electroanalytical methods, e.g. DC polarography, cyclic voltammetry and controlled potential coulometry have been employed upon 3arylazo 1,2,4triazole derivatives, AAT; substituents affect the reduction potentials but do not alter the reduction pattern. Accession Number: WOS:000077722900016 Author Identifiers:
Author
ResearcherID Number
MADKOUR, LOUTFY
ORCID Number 0000000231018356
ISSN: 03082342 Record 8 of 28 Title: Thermodynamic behaviour of complex antimonite ore for electrodeposition of metal value Author(s): Madkour, LH (Madkour, LH) Source: JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICOCHIMIE BIOLOGIQUE Volume: 94 Issue: 3 Pages: 620634 Published: MAR 1997 Abstract: This paper outlines the hydrometallurgical processing and the various possible approaches for the recovery of metallic antimony from its antimonite sulphide ore by electrolysis. Thermodynamic calculations have been made to find the optimum conditions for roasting and/or sulphate roasting of Wadi Abu Quraiya antimonite ore. The antimonite ore (Sb2S3) is roasted directly without concentration and large savings in reagent and chemical processes are expected. A suitable roasting temperature of 1200 K for 4 hours has been determined. Metallic antimony is' cathodically electrodeposited with a high current efficiency at current densities of 350 to 500 A/m(2) depending on the composition of leach liquor solutions. The results of the electron microscopy investigation confirmed by metal value data in the ASTM cards are in good agreement with the chemical analysis. Accession Number: WOS:A1997WW09200012 Author Identifiers:
Author MADKOUR, LOUTFY
ResearcherID Number
ORCID Number 0000000231018356
ISSN: 00217689 Record 9 of 28 Title: Inhibition of the acid corrosion of iron with haloacetic acids Author(s): ElGaber, AS (ElGaber, AS); Madkour, LH (Madkour, LH); ElAsklany, AH (ElAsklany, AH); Fouda, AS (Fouda, AS) Source: BULLETIN OF ELECTROCHEMISTRY Volume: 13 Issue: 2 Pages: 6266 Published: FEB 1997 Abstract: The efficiency of chloro, dichloro, trichloro, bromo, and iodoacetic acids as inhibitors for acid corrosion of inon was studied using polarization technique. A significant retardation of the corrosion rate Is observed in the inhibited HNO3 solution. The rate of corrosion depends on the nature of the inhibitor and its concentration and on the temperature of the system. It was found that iodoacetic acid has a significant inhibiting effect on the corrosion of the metal and protection efficiencies approaching 91% were measured. The inhibitor shifts the free corrosion potential in the cathodic direction and polarizes both the cathodic and anodic half reactions. It was
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found that the compounds under consideration are chemisorbed on the iron sunface according to the Frumkin isotherm. The Tafel slope is approximately constant and independent of the concentration of the inhibitor, The thermodynamic parameters of adsorption obtained reveal a strong interaction of these inhibitors on the iron surface. Accession Number: WOS:A1997WN20900003 Author Identifiers:
Author
ResearcherID Number
MADKOUR, LOUTFY
ORCID Number 0000000231018356
ISSN: 02561654 Record 10 of 28 Title: Inhibition of the corrosion of 16/14 austenitic stainless steel by oxygen and nitrogen containing compounds Author(s): Madkour, LH (Madkour, LH); Ghoneim, MM (Ghoneim, MM) Source: BULLETIN OF ELECTROCHEMISTRY Volume: 13 Issue: 1 Pages: 17 Published: JAN 1997 Abstract: Corrosion inhibition by methoionine (MET), citrulline (CIT), alanine (AL), glycine (GLY) and hydroxyproline (HPR) with respect to the dissolution of tungsten stainless steels in hydrochloric acid solution was studied using potentiodynamic, Tafel extrapolation and polarization resistance methods. Polarization curves indicated that the primary passivation potential (Epp) and the transpassive region shift towards more positive potentials in presence of the studied amino acids, i.e. there is more passivation at wide potential range in the presence of amino acid inhibitors. The corrosion parameters are dependent on the percentage of tungsten in the alloy composition as well as the nature of the tested amino acids. The intermetallic compound Fe3W2 may form a galvanic cell with the matrix around the Fe3W2 phase within the matrix that is formed as a dispersed phase. Accession Number: WOS:A1997WN20600001 Author Identifiers:
Author
ResearcherID Number
MADKOUR, LOUTFY
ORCID Number 0000000231018356
ISSN: 02561654 Record 11 of 28 Title: Electrolytic recovery of antimony from natural stibnite ore Author(s): Madkour, LH (Madkour, LH); Salem, IA (Salem, IA) Source: HYDROMETALLURGY Volume: 43 Issue: 13 Pages: 265275 DOI: 10.1016/0304386X(95)00113U Published: NOV 1996 Abstract: Stibnite ore at Wadi Abu Quraiya, situated in the central Eastern Desert of Egypt has been subjected to petrographical, mineralogical, infrared, Xray diffraction, chemical and spectral analyses. Hydrometallurgical treatment based on leaching with acids, precipitation and electrodeposition of metal values from the ore have been developed. Studies to investigate suitable electrolytic baths for the cathodic deposition of metallic antimony either directly from the leach liquor or in the presence of complexing agents have been carried out, The influence of various factors on the electrodeposition process of the element from its electrolyte solutions is discussed, Advantages of the flowsheet and various approaches depending on convenient electrolytes for the deposition of antimony from the stibnite ore have been investigated. The results of spectrophotometric and chemical analyses revealed that the purity of the metal is > 99%. Accession Number: WOS:A1996VM89200020 Author Identifiers:
Author
ResearcherID Number
MADKOUR, LOUTFY
ORCID Number 0000000231018356
ISSN: 0304386X Record 12 of 28 Title: Electrodeposition of lead and its dioxide from Egyptial carbonate ore residuum Author(s): Madkour, LH (Madkour, LH) Source: BULLETIN OF ELECTROCHEMISTRY Volume: 12 Issue: 34 Pages: 234236 Published: MARAPR 1996 Abstract: Acidleach residue resulting from the sulphate roasting of ZnPb Egyptial carbonate ore is used for the production of lead, after hydrometallurgical treatments. Studies to investigate various baths for the deposition of lead and lead dioxide have been carried out. The results showed a wide variety of electrolysis, either soluble simple salts, or those containing complex anions and in virtually all cases, very high current efficiencies are obtained. The effects of various factors on the electrodeposition of Pb and PbO2 are discussed. Tn commercial practice, the properties and service requirements dictate the precise electrolyte that should be used since the properties of electrodeposited lead vary with the baths, Mechanism of the electrolytic production of the element and its dioxide is discussed. The results spectrophotometric and chemical analyses revealed that the purity of the metal is > 99%. Accession Number: WOS:A1996UT92200026 Conference Title: 5th International Symposium on Advances in Electrochemical Science and Technology Conference Date: NOV 2426, 1994 Conference Location: MADRAS, INDIA Author Identifiers:
Author
ResearcherID Number
MADKOUR, LOUTFY
ORCID Number 0000000231018356
ISSN: 02561654 Record 13 of 28 Title: ELECTROLYTIC SEPARATION OF LEAD AND ITS DIOXIDE FROM CARBONATE ORE RESIDIUUM Author(s): MADKOUR, LH (MADKOUR, LH) Source: INDIAN JOURNAL OF CHEMICAL TECHNOLOGY Volume: 2 Issue: 6 Pages: 343344 Published: NOV 1995 Abstract: Electrowinning work is carried out on the roasted Eastern Desert complex carbonate ore residuum. Lead and its dioxide are electrodeposited from various electrolyte ore baths and the results showed a wide variety of ore electrolyte solutions, either in the form of soluble simple ore salts, or those containing complex ore anions. The optimum conditions and the efficiency of the electrolytic extraction are determined experimentally on the ore leach solutions. Accession Number: WOS:A1995RY88900012 Author Identifiers:
Author MADKOUR, LOUTFY
ResearcherID Number
ORCID Number 0000000231018356
ISSN: 0971457X Record 14 of 28 Title: INHIBITION OF COPPER CORROSION BY ARYLAZOTRIAZOLES IN NITRICACID SOLUTION Author(s): MADKOUR, LH (MADKOUR, LH); ELMORSI, MA (ELMORSI, MA); GHONEIM, MM (GHONEIM, MM) Source: MONATSHEFTE FUR CHEMIE Volume: 126 Issue: 10 Pages: 10871095 DOI: 10.1007/BF00811379 Published: OCT 1995 Abstract: A study has been made to investigate the effect of some azoheterocyclic dyes of the type 3arylazo 1,2,4triazole (AT) on the corrosion of copper exposed to 0.5 M nitric acid solution at different temperatures and at different AT concentrations. Using potentiodynamic polarization and Tafel electrochemical methods, it can be shown that AT compounds are good inhibitors of copper corrosion in HNO3 solution. The kinetic and thermodynamic parameters of the inhibited system were determined. The
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high inhibition efficiency of these compounds may be due to the adsorption of the additive itself and/or the adsorption of the formed Cu(II)AT complexes at the polarized electrode interface. Cathodic polarization measurements showed that AT dyes are predominantly cationic inhibitors. Accession Number: WOS:A1995RZ65400005 Author Identifiers:
Author
ResearcherID Number
MADKOUR, LOUTFY
ORCID Number 0000000231018356
ISSN: 00269247 Record 15 of 28 Title: INHIBITORY EFFECT OF SOME CARBAZIDES ON CORROSION OF ALUMINUM IN HYDROCHLORICACID AND SODIUMHYDROXIDE SOLUTIONS Author(s): FOUDA, AS (FOUDA, AS); MADKOUR, LH (MADKOUR, LH); ELSHAFEI, AA (ELSHAFEI, AA); ELASKLANY, AH (ELASKLANY, AH) Source: MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK Volume: 26 Issue: 6 Pages: 342346 DOI: 10.1002/mawe.19950260612 Published: JUN 1995 Abstract: The dissolution of aluminium in hydrochloric acid and sodium hydroxide solutions in the presence of semicarbazide, thiosemicarbazide and sym.diphenylcarbazide as corrosion inhibitors has been studied using thermometric, weightloss and polarization methods. The three methods gave consistent results. The higher inhibition efficiency of these compounds in acidic than in alkaline madia may be due to the less negative potential of aluminium in hydrochloric acid solution, favouring adsorption of the additive. The adsorption of these compounds were found to obey Frumkin adsorption isotherm. Cathodic polarization measurements showed that these compounds are cathodic inhibitors and their adsorption in the double layer does not change the mechanism of the hydrogen evolution reaction. The results are analysed in terms of both molecular and cationic adsorption. Accession Number: WOS:A1995RF41700009 ISSN: 09335137 Record 16 of 28 Title: CORROSIONINHIBITORS FOR ZINC IN 2M HCL SOLUTION Author(s): FOUDA, AS (FOUDA, AS); MADKOUR, LH (MADKOUR, LH); ELSHAFEI, AA (ELSHAFEI, AA); ELMAKSOUD, SAA (ELMAKSOUD, SAA) Source: BULLETIN OF THE KOREAN CHEMICAL SOCIETY Volume: 16 Issue: 5 Pages: 454458 Published: MAY 20 1995 Abstract: Inhibiting action of semicarbazide, thiosemicarbazide, sym. diphenylcarbazide towards corrosion of zinc in hydrochloric acid has been investigated. The rate of corrosion depends on the nature of the inhibitor and its concentration. The values of inhibition efficiency from, weight loss, thermometric measurements are in good agreement with those obtained from polarization studies. From the polarization studies, the inhibitors used act as mixed adsorption type inhibitors, increased adsorption resulting from an increase in the electron density at the reactive C=S and C=O groups and Natoms. The thermodynamic parameters of adsorption obtained using Bockris Swinkels adsorption isotherm reveal a strong interaction of these carbazides on zinc surface. Accession Number: WOS:A1995RB62400018 ISSN: 02532964 Record 17 of 28 Title: SYNTHESIS AND CHARACTERIZATION OF 2,2'BIIMIDAZOLE COMPLEXES OF OXOCATIONS OF MOLYBDENUM (VI, V) AND URANIUM(VI) Author(s): KANDIL, SS (KANDIL, SS); MADKOUR, LH (MADKOUR, LH) Source: SPECTROSCOPY LETTERS Volume: 26 Issue: 3 Pages: 535550 DOI: 10.1080/00387019308011552 Published: 1993 Abstract: 2,2'Biimidazole complexes of MoO2(+2), MoO2+ and UO2(+2) have been prepared and characterized by elemental analysis, conductance; and H1 NMR, IR and electronic spectra. Two types of complexes have been identified. Those obtained from slightly acidic solutions have the formulae MoO2(H2bim)Cl2.2H2O 1, UO2(H2bim)(Ac)2 2 and UO2(H2bim)Cl2.2H2O 3; whereas those from alkaline solutions have the formulae Mo2O4(Hbim)2.2H2O 4, and MO2(Hbim)2 (M = Mo(VI) 5, U(VI) 6). The infrared spectra of these complexes show characteristic biimidazole frequencies in the 32002500, 15501000 and 750 cm1 regions as well as metal oxygen double bonds in the 900 cm1 region. The stoichiometries of the acetate complex has been confirmed from H1 NMR signal ratios of biimidazole to acetate protons at 7.3 and 2.3 ppm, respectively. The electronic spectrum of molybdenum(V) complex showed dd transition band at congruentto 13,500 cm1 in accord with that reported for copper (d9) imidazole complexes; as well as peaks due to charge transfer bands at 30,00026,000 cm1. Peaks assignable to BIM > U(VI) were located at congruentto 26,600 cm1. The most probable structures of these complexes have been suggested. Accession Number: WOS:A1993KR90200012 Author Identifiers:
Author MADKOUR, LOUTFY
ResearcherID Number
ORCID Number 0000000231018356
ISSN: 00387010 Record 18 of 28 Title: THE INHIBITION OF THE DISSOLUTION OF ALUMINUM IN HYDROCHLORICACID BY SOME BIACETYLMONOXIME HYDRAZONES Author(s): FOUDA, AEE (FOUDA, AEE); ELASKLANY, AE (ELASKLANY, AE); MADKOUR, LH (MADKOUR, LH); IBRAHIM, KM (IBRAHIM, KM) Source: ACTA CHIMICA HUNGARICAMODELS IN CHEMISTRY Volume: 124 Issue: 3 Pages: 377385 Published: MAYJUN 1987 Accession Number: WOS:A1987K445300007 ISSN: 02313146 Record 19 of 28 Title: ELECTRODEPOSITION OF INDIUM Author(s): FOUDA, AS (FOUDA, AS); MADKOUR, LH (MADKOUR, LH); AHMED, AI (AHMED, AI) Source: BULLETIN DE LA SOCIETE CHIMIQUE DE FRANCE Issue: 2 Pages: 270272 Published: MARAPR 1987 Accession Number: WOS:A1987H297500009 ISSN: 00378968 Record 20 of 28 Title: ELECTROREDUCTION OF 4ARYLHYDRAZONO1PHENYLPYRAZOLIDIN3,5DIONES IN 20PERCENT ETHANOLIC BR BUFFERS AT MERCURY ELECTRODE Author(s): ISSA, RM (ISSA, RM); GHONEIM, MM (GHONEIM, MM); ELMORSI, M (ELMORSI, M); MADKOUR, LH (MADKOUR, LH); HAMMAM, E (HAMMAM, E) Source: JOURNAL OF THE ELECTROCHEMICAL SOCIETY Volume: 134 Issue: 3 Pages: C140C140 Published: MAR 1987 Accession Number: WOS:A1987G410200520 ISSN: 00134651 Record 21 of 28 Title: CRITICAL MICELLE CONCENTRATIONS OF HEXADECYLTRIMETHYLAMONIUM CHLORIDE IN WATER OVER THE TEMPERATURERANGE 25 TO 160DEGREESC Author(s): FOUDA, AA (FOUDA, AA); MADKOUR, LH (MADKOUR, LH); EVANS, DF (EVANS, DF) Source: INDIAN JOURNAL OF CHEMISTRY SECTION AINORGANIC BIOINORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY Volume: 25 Issue: 12 Pages: 11021104 Published: DEC 1986 Accession Number: WOS:A1986G105000007 ISSN: 03764710 Record 22 of 28
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Title: INHIBITIVE ACTION OF SOME AMINES AND HYDRAZINES TOWARDS CORROSION OF ZINC IN TRICHLOROACETICACID SOLUTION Author(s): FOUDA, AS (FOUDA, AS); MADKOUR, LH (MADKOUR, LH) Source: BULLETIN DE LA SOCIETE CHIMIQUE DE FRANCE Issue: 5 Pages: 745749 Published: SEPOCT 1986 Accession Number: WOS:A1986E949300015 ISSN: 00378968 Record 23 of 28 Title: ELECTRODEPOSITION OF TIN FROM TINSTONE ORE Author(s): FOUDA, AS (FOUDA, AS); MADKOUR, LH (MADKOUR, LH); KHALIFA, ME (KHALIFA, ME) Source: BULLETIN DE LA SOCIETE CHIMIQUE DE FRANCE Issue: 4 Pages: 504506 Published: JULAUG 1986 Accession Number: WOS:A1986D456600003 ISSN: 00378968 Record 24 of 28 Title: CORRELATION BETWEEN EFFECTIVENESS OF ALIPHATICAMINES AS CORROSIONINHIBITORS AND ELECTRONDENSITY CALCULATIONS Author(s): FOUDA, AS (FOUDA, AS); MADKOUR, LH (MADKOUR, LH); SOLIMAN, MS (SOLIMAN, MS) Source: BULLETIN DE LA SOCIETE CHIMIQUE DE FRANCE Issue: 3 Pages: 358360 Published: MAYJUN 1986 Accession Number: WOS:A1986C902300004 ISSN: 00378968 Record 25 of 28 Title: THERMODYNAMIC STUDIES ON SULFATE ROASTING FOR ZINC ELECTROWINNING FROM CARBONATE ORE Author(s): MADKOUR, LH (MADKOUR, LH) Source: JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY Volume: 36 Issue: 5 Pages: 197211 Published: MAY 1986 Accession Number: WOS:A1986C307300001 Author Identifiers:
Author
ResearcherID Number
MADKOUR, LOUTFY
ORCID Number 0000000231018356
ISSN: 02682575 Record 26 of 28 Title: ELECTRODEPOSITION OF TITANIUM AND ITS DIOXIDE FROM ILMENITE Author(s): MADKOUR, LH (MADKOUR, LH); FOUDA, AS (FOUDA, AS) Source: JOURNAL OF ELECTROANALYTICAL CHEMISTRY Volume: 199 Issue: 1 Pages: 207210 DOI: 10.1016/00220728(86)87053X Published: FEB 25 1986 Accession Number: WOS:A1986A246800016 Author Identifiers:
Author
ResearcherID Number
MADKOUR, LOUTFY
ORCID Number 0000000231018356
ISSN: 00220728 Record 27 of 28 Title: RECOMMENDED FLOWSHEETS FOR THE ELECTROLYTIC EXTRACTION OF LEAD AND ZINC FROM REDSEA POLYMETAL ORE Author(s): MADKOUR, LH (MADKOUR, LH) Source: JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY ACHEMICAL TECHNOLOGY Volume: 35 Issue: 3 Pages: 108114 Published: 1985 Accession Number: WOS:A1985AFR1000002 Author Identifiers:
Author
ResearcherID Number
MADKOUR, LOUTFY
ORCID Number 0000000231018356
ISSN: 02643413 Record 28 of 28 Title: THE EFFECT OF SOME BETADIKETO COMPOUNDS ON THE CORROSION OF ZINC IN HYDROCHLORICACID SOLUTION Author(s): FOUDA, AS (FOUDA, AS); ELASKLANY, AH (ELASKLANY, AH); MADKOUR, LH (MADKOUR, LH) Source: JOURNAL OF THE INDIAN CHEMICAL SOCIETY Volume: 61 Issue: 5 Pages: 425429 Published: 1984 Accession Number: WOS:A1984TL48300014 ISSN: 00194522 Web of Science™ Page 1 (Records 1 28) [ 1 ]
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