Science Journal of Chemistry

Volume 11, Issue 1, February 2023

  • Assessment of Heavy Metals (As, Cd, Hg, Pb) in Sources of Water for Human Consumption in Sub-Saharan Africa: A Literature Review

    Alassane Youssao Abdou Karim, Emmanuel Azokpota, Léonce Firmin Dovonon, Abdoul Kader Alassane Moussa, Alphonse Sako Avocefohoun, Daouda Mama, Dominique Codjo Koko Sohounhloue

    Issue: Volume 11, Issue 1, February 2023
    Pages: 1-9
    Received: Dec. 26, 2022
    Accepted: Jan. 14, 2023
    Published: Jan. 30, 2023
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    Abstract: In the world and particularly in Africa, the supply of drinking water by rural communities is still a challenge to be met due to the unavailability of water in quality and quantity. Indeed, 76% of the population in sub-Saharan Africa does not have access to drinking water. This situation is more pronounced in rural and peri-urban communities than i... Show More
  • Study of the Chemical Reactivity of a Series of Dihydrothiophenone Derivatives by the Density Functional Theory (DFT) Method

    Fandia Konate, Kadjo François Kassi, Georges Stephane Dembele, Chiepi Nadege Dominique Dou, Bibata Konaté, Doh Soro, Guy-Richard Mamadou Kone, Nahosse Ziao

    Issue: Volume 11, Issue 1, February 2023
    Pages: 10-17
    Received: Dec. 30, 2022
    Accepted: Jan. 20, 2023
    Published: Feb. 14, 2023
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    Abstract: This chemical reactivity theory study was conducted on ten (10) molecules of a series of dihydrothiophenone (DH) substituted by the quantum chemical method using density functional theory, at the B3LYP/6-31G (d, p) level. A set of global and local descriptors were used to assess the reactivity of the molecular systems. In addition, the most relevan... Show More
  • Synthesis, Spectroscopic Characterization, and X-ray Structure of the Co-crystal Copper(II) Complex of the Dissymmetrical 1-(2 hydroxy-3-methoxybenzylidene)-5-(pyridin-2 ylmethylene) Carbnohydrazide Ligand

    Ndiouga Fall, Bocar Traore, Mbosse Ndiaye-Gueye, Ousmane Diouf, Ibrahima Elhadji Thiam, Simon Coles, James Orton, Mohamed Gaye

    Issue: Volume 11, Issue 1, February 2023
    Pages: 18-25
    Received: Jan. 10, 2023
    Accepted: Jan. 30, 2023
    Published: Feb. 14, 2023
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    Abstract: In the pentanuclear title complex, bis{μ2-1-(2-oxido-3-methoxybenzylidene)-5-(pyridin-2-ylmethylene)carbonohydrazide}-1κ4O,N,N’,N’’:2κ2O,N;2κ2O,N:3κ4O,N,N’,N’’-1,2,3-tricopper(II) bis{[1-(2-oxido-3-methoxybenzylidene)-5-(pyridin-2-ylmethylene)carbonohydrazide]-κ4O,N,N’,N’’-copper(II)} tetraperchlorate tetrahydrate (1), two monocationic mononuclear ... Show More
  • Comparison of the Chemical Composition of L. schlechteri with Other Selected Green Leafy Vegetables

    Arnaud Wenceslas Geoffroy Tamba Sompila, Nadia Pamela Gladys Pambou-Tobi, Roniche Nguie, Michel Elenga

    Issue: Volume 11, Issue 1, February 2023
    Pages: 26-35
    Received: Jan. 17, 2023
    Accepted: Feb. 10, 2023
    Published: Feb. 28, 2023
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    Abstract: The present study, aimed at analyzing by comparison the nutritional, mineral and fatty acid composition of some available green leafy vegetables, will promote an increased use and consumption of these vegetables for their contribution as a source of nutrients. L. schlechteri was used as a reference vegetable to perform this comparison. Recommended ... Show More
  • Chemical Stability of Imidazole-Thiosemicarbazides in Solvents: NBO Studies and Theoretical Absorption Spectrum

    Mamadou Guy-Richard Kone, Adama Niare, Bafétigué Ouattara, Georges Stéphane Dembele, Panaghiotis Karamanis, Nahossé Ziao

    Issue: Volume 11, Issue 1, February 2023
    Pages: 36-44
    Received: Jan. 30, 2023
    Accepted: Feb. 20, 2023
    Published: Feb. 28, 2023
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    Abstract: This study of chemical stability in solvents was performed on four (4) molecules of a series of halogen-substituted imidazole-thiosemicarbazides (IT) using the TD-DFT method at the B3LYP/6-31+G (d, p) level. The solubility of the imidazole-thiosemicarbazides in solvents across the dipole moment revealed that the ITs have the lowest values of the di... Show More