Science Journal of Chemistry

Volume 11, Issue 4, August 2023

  • Synthesis, Characterization and Antimicrobial Activity of Metal(II) Complexes of Benzoyl Hydrazide and Its Hydrazone Derivative Mixed with Nicotinamide

    Olawale Folorunso Akinyele, Adeyanju Bukola Adesina, Temitope Adekunle Ajayeoba, Emmanuel Gabriel Fakola

    Issue: Volume 11, Issue 4, August 2023
    Pages: 137-145
    Received: May 24, 2023
    Accepted: Jun. 19, 2023
    Published: Jul. 06, 2023
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    Abstract: The increasing prevalence of antimicrobial resistance has prompted the exploration of alternative antimicrobial agents. In this context, the antimicrobial properties of hydrazide derivatives and their metal complexes have garnered significant interest. In line with this motivation, the present study investigated the antimicrobial activity of Benzoy... Show More
  • Topology on Nature: Isomerization of Five Membered Ring Tetrahedral Angles

    Carmen-Irena Mitan, Emerich Bartha, Petru Filip

    Issue: Volume 11, Issue 4, August 2023
    Pages: 146-154
    Received: Jun. 22, 2023
    Accepted: Jul. 08, 2023
    Published: Jul. 21, 2023
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    Abstract: Tetrahedral angles of five membered ring are disclosed from the polyhedron geometry point of view, dodecahedron and icosahedron geometry under Fibonacci number. The number of carbons on carbasugar follows the Fibonacci sequence, each carbon is placed at 0.618034 per turn (222.5[deg]). The Fibonacci golden angle 137.5[deg] with its 0.382 turns is ap... Show More
  • Periodicity of Interaction Coefficients of Al and Si in Molten Fe-Based Alloys Arranged with Periodical Table and Phase Diagrams

    Hidekazu Todoroki

    Issue: Volume 11, Issue 4, August 2023
    Pages: 155-160
    Received: Jul. 06, 2023
    Accepted: Jul. 20, 2023
    Published: Jul. 26, 2023
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    Abstract: Periodicity of the interaction coefficients of Al and Si; εAlj and εSij in molten iron was analyzed to try generalization of the interaction coefficients. The coefficients of both Al and Si, which are important for deoxidation of molten steels, arranged with periodic table show periodicity with each Period from 2 to 5. Referring to the phase diagra... Show More
  • FT-IR and FT Raman: Experimental and Theoretical Studies and HOMO-LUMO Analysis of 1,2,4,5-Tetracyanobenzene

    Ali Sanda Bawa, Abdoul-Rachid Chaibou Yacouba, Seydou Ouedraogo, Mabinty-Bayo Bangoura, Karifa Bayo, Marcel Bouvet

    Issue: Volume 11, Issue 4, August 2023
    Pages: 161-167
    Received: Jul. 11, 2023
    Accepted: Aug. 14, 2023
    Published: Aug. 31, 2023
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    Abstract: Experimental and theoretical studies on molecular and vibrational structure of 1,2,4,5-Tetracyanobenzene (TCNB) have been undertaken in the present work. The FT-IR spectrum and FT Raman spectrum of TCNB were recorded respectively in the region 4000–400 cm−1 and 2500-400 cm-1. The optimized geometries in the ground state were calculated by DFT (B3LY... Show More