Browsing by Author "MESSAI Amel"

Now showing 1 - 4 of 4
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    Creatinium perchlorate
    (2009) MESSAI Amel
    The title compound, C4H8N3O+.ClO4_, is built up from creatininium cations and perchlorate anions. Crystal cohesion and perchlorate stability are ensured by N—H…O hydrogen bonds that together with weak C—H…O interactions build up a three-dimensional network.
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    Hydrogen bonding in cytosinium dihydrogen phosphite
    (2009) MESSAI Amel
    In the title compound, C4H8N3O4P+,H2PO3 -, the cytosine molecule is monoprotonated and the phosphoric acid is in the monoionized state. Strong hydrogen bonds, dominated by N— H…O interactions, are responsible for cohesion between the organic and inorganic layers and maintain the stability of this structure
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    New Cu(II) coordination polymer by chiral tridentate Schiff base ligand
    (2017) MESSAI Amel
    The present research reports the synthesis, X-ray, magnetic and electronic properties for novel coordination polymer based upon copper (II) with chiral tridentate Schiff base ligand synthesized at condensation of acetylacetone and L-leucine amino acid. The investigation was also conducted by quantum mechanical calculations. The large energy gap indicates a high kinetic stability. Magnetic measurement gives predominant antiferromagnetic interactions within the chain. Results reveals further insight into copper(II) chiral tridentate Schiff base complexes.
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    Synthesis, Characterizations, and Biological Effects Study of Some Quinoline Family
    (2016) MESSAI Amel
    The objective of this work is the synthesis of new quinoline molecules which could have some biological activities. This chapter reported a new approach to the synthesis of some quinoline derivatives. The Baylis-Hillman reaction on 2-methoxy-3-formyl quinoléines derivatives have applied in order to obtain Baylis-Hillman adducts. The products are characterized by FTIR, NMR and X-ray single crystal diffraction .Also, a study of the antibacterial activity of the 3-(2-chloro quinoline)-3-hydroxy-2 methylene propanonitrile products synthesized have been explored. This assessment is made by using the disk diffusion method. The results showed that the 3-(2’-chloroquinoline)-3-hydroxy-2-methylenepropanonitril derivatives present a good antibacterial effectiveness against the strains tested Gram-positive and no antibacterial potency was observed against the stains Gram-negative used in the test.