Showing 61 - 80 results of 115 for search 'complex mole', query time: 0.05s Refine Results
  1. 61

    Synthesis, Characterization, Antimicrobial and Theoretical Studies of V(IV),Fe(III),Co(II),Ni(II), Cu(II), and Zn(II)Complexes with Bidentate (NN) Donar Azo Dye Ligand by Baghdad Science Journal

    Published 2016-12-01
    “…The magnetic properties and electrical conductivities of metal complexes were also determined. Study of the nature of the complexes formed in ethanol following the mole ratio method.. …”
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  2. 62

    Synthesis and Spectral Studies of Co(II),Ni(II),Zn(II) and Cd(II) Complexes with Ligand 2-[4- Carboxy methyl phenyl azo] -4,5-diphenyl imidazole (4CMeI) by Baghdad Science Journal

    Published 2013-06-01
    “…A new chelate complexes of Co(II),Ni(II),Zn(II) and Cd(II) were prepared by reacting these ions with the ligand 2-[4- Carboxy methyl phenyl azo]-4,5-diphenyl imidazole (4CMeI) The preparation were conducted after fixing the optimum conditions such as (pH) and concentration .UV- visible spectra of these complex solutions were studied for a range of (pH) and concentration which obey lampert-Beers Law.The structures of complexes were deduced according to mole ratio method which were obtained from the spectroscopic studies of the complex solutions .The ratios of metal: ligand obtained were (1:2) for all complexes..…”
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  3. 63
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  5. 65

    Synthesis and Spectroscopic Characterization of Two New Dawson Sandwich Complexes: Na18[(NaOH)2(VO)2(P2W15O56)2].40H2O and Na18[(NaOH)2(VO)2(As2W15O56)2].27H2O by Mohammad Hakimi, Mohammad Reza Mohammadi, Salma Behboupour

    Published 2012-01-01
    “…Reaction of the three vacant complex of a-[P2W15O56]12- and a-[As2W15O56]12- with divalent cation of VO2+ in 1:1 mole ratio yields a previously unknown sandwich-type Wells-Dawson complex; Na18[(NaOH)2(VO)2(P2W15O56)2].40H2O (represented as Na2(VO)2P4W30) and Na18[(NaOH)2(VO)2(As2W15O56)2].27H2O (represented as Na2(VO)2As4W30). …”
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  6. 66

    3-Nitroso-4-hydroxy-5,6-benzocoumarin (NHBC) as a reagent for the spectrophotometric determination of copper(II) in alloys by Nitin Kohli, R.P. Singh

    Published 1974-11-01
    “…The sensitivity of the colour reaction is 0.0032 μg Cu (II)/cm2, for log I0/I = 0.001 and the molar absorptivity is 1.98 × 104 litre mole-1 cm-1. The composition of the complex is 1:2 as determined by Job’s and mole ratio methods. …”
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  7. 67

    With Solvent Extraction Method, and via new Organic Reagent 2-(Benzo thiazolyl azo)-4,5- Diphenyl Imidazole for Spectrophotometric Determination of Copper (II) in different Samples by Baghdad Science Journal

    Published 2014-03-01
    “…Thermodynamically found the reaction was Endothermic reaction, with ?Hex= 0.0131 KJ.mole-1,?Gex=-54.20 KJ.mole-1 ,?Sex= 167.84 J.mole-1.Beer’s law was obeyed over the concentration 1-30?…”
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  8. 68

    Artificial-Intelligence-Assisted Investigation of Quality and Yield of Cumene Production by Asad Ayub, Muhammad Zulkefal, Hamza Sethi

    Published 2024-04-01
    “…In the present study, a data-based model was used for the prediction of the molar flow and mole fraction of cumene in the final product stream. …”
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  9. 69

    A hybrid swarm intelligent optimization algorithm for antenna design problems by Supreet Singh, Harbinder Singh, Nitin Mittal, Gurpreet Kaur Punj, Lalit Kumar, Kinde Anlay Fante

    Published 2025-02-01
    “…The Naked Mole-Rat Algorithm (NMRA), inspired by the mating patterns of naked mole-rats, has shown promise but suffers from poor convergence accuracy and a tendency to get trapped in local optima. …”
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  10. 70

    A NEW SPECTROPHOTOMETRIC PROCEDURE FOR THE DETERMINATION OF NICKEL (11) USING 6-PHENYL-2,3-DIHYDRO-AS-TRIAZINE-3 –THIONE

    Published 1992-12-01
    “…A yellow compound forms and is easily extractable by chloroform at pH>6. The mole ratio between Nickel (??) and PDTT is 1:4. The absorbance of the complex obeys Beer's law over the concentration range of 1-7 ug of Ni (??) …”
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  11. 71

    ThermodynamicProperties of Nicotinicacid in Dilute HCl and inaqueous NaCl solutions at (293.15, 298.15, 303.15 and 308.15)K by Baghdad Science Journal

    Published 2013-06-01
    “…Free energies of activation of viscous flow ( *1) per mole, and, ( *2) per mole,of solvent and solute, respectively, were also calculated. …”
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  12. 72

    2-Hydroxy-4-n-propoxy-5-bromoacetophenone oxime as an Analytical Reagent for Gravimetric Determination of V(V) by Ambily P. Nair, J. Christine

    Published 2009-01-01
    “…In the pH range 4.0-6.0, the reagent gave a brown coloured precipitate with V(V). Job’s method and Mole ratio method revealed that the stoichiometry of the complex is 1:1 (metal: ligand). …”
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  13. 73

    Spectrophotometric micro determination of drug promethazine hydrochloride in some pharmaceutical by chelating with Rhodium by Baghdad Science Journal

    Published 2008-12-01
    “…Stability constant (6.4 × 10 5 M-1). The mole – ratio method (1: 1) approved that PRZH – Rh (II) as a structure of the complex. …”
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  14. 74
  15. 75

    Development of an Experimental Phytotron and its Application in the Research on the Energy-ecological Efficiency of Indoor Plant Lighting by S. A. Rakutko, E. N. Rakutko, G. V. Medvedev

    Published 2023-06-01
    “…(Results and discussion) Under the varied lighting conditions, energy-ecology efficiency varied from 0.075 grams per mole (with the control spectrum, an extended photoperiod and high irradiance) to 0.138 grams per mole (with the blue-enhanced spectrum, a normal photoperiod and medium irradiance). …”
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  16. 76

    Structural Optimization of p-GaN Gate GaN-Based High Electron Mobility Transistors by GE Mei; LI Yi; WANG Zhiliang; ZHU Youhua

    Published 2021-06-01
    “…In order to simplify the complexity of circuit design and reduce the cost, normally-off high electron mobility transistors are more preferable in the industry. …”
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  17. 77

    Spectrophotometric Determination of Micro Amount of Chromium (III) Using Sodium 4-((4,5-diphenyl-imidazol-2-yl)diazenyl)-3-hydroxynaphthalene-1-sulfonate in the Presence of Surfact... by Hawraa Abdul Hadi Abdul Ameer, Alaa Frak Hussain

    Published 2023-08-01
    “…The limits of detection (LOD) and limit of quantification (LOQ), respectively, were 0.117 µg/mL and 0.385µg/mL. (mole ratio technique, job's method) were employed to investigate the stoichiometry of complexes, and both methods revealed that the metal to reagent ratio is equal 1:3.The absorption impact value of the reagent concentration, surfactant concentration, pH, reaction duration, temperature, addition sequences, ionic strength, masking agent, and the influence of many parameters such as affect cations and anions, among others. …”
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  19. 79

    Modified Screen-Printed Microchip for Potentiometric Detection of Terbinafine Drugs by Menna El-Beshlawy, Hassan Arida

    Published 2022-01-01
    “…The sensitive membrane comprises terbinafine HCl: ammonium heptamolybdate complex ion pair as ionophore, o-nitrophenyl octyl ether as a solvent mediator, potassium tetrakis (4-chlorophenyl) borate as an anion excluder, and polyvinyl chloride as support. …”
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  20. 80

    Slowdown of solvent structural dynamics in aqueous DMF solutions by Akhil Pathania, Sayan Bagchi

    Published 2024-12-01
    “…This slowdown underscores the complex relationship between solute-solvent interactions and solvent dynamics. …”
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