Mostafa Khalil

Publications (24) View all

• Source

  Available from: Mostafa Khalil

  Article: Molybdenum and Tungsten Tricarbonyl Complexes of Isatin with Triphenylphosphine

  M. M. H. Khalil, F. A. Al-Seif
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  ABSTRACT: Reaction of M(CO)6; M = Mo or W with isatin in the presence of triphenylphosphine in THF under reduced pressure gave the tricarbonyl derivatives complexes [M(CO)3(isatH)(PPh3)]. The two complexes were characterized by elemental analysis, infrared, mass and 1H NMR spectroscopy. The spectroscopic studies show that the two complexes exist in fac- and mer-isomers in solutions through exchange the CO group and PPh3. The Uv-Vis spectra of the complexes in different solvents were studied.
  Research Letters in Inorganic Chemistry. 01/2008;
• Article: New transition and actinide metal complexes of 2-carboxyphenylhydrazo-benzoylacetone ligand: Synthesis, characterization and biological stud

  M. M.H. Khalil, M.M. Mashaly
  Chinese Journal of Chemistry 01/2008; 26:1669-1677. · 0.75 Impact Factor
• Article: Reaction and characterization of group 6 and 8 metal carbonyl complexes of 5-methylisatin.

  Foziah A. Al Seif, M.M.H. Khalil
  Journal of Saudi Chemical Society 01/2007; 11(2):269.
• Article: Effect of complexation with lanthanide metal ions on the photochromism of (1,3,3-trimethyl- 5 ′ -hydroxy- 6 ′ -formyl- indoline-spiro2,2 ′ -[2h]chromene) in different media

  M S Attia, M. H. Khalil, M. S. A. Abdel-Mottaleb, M. B. Lukyanova, Yu. A. Alekseenko, Lukyanov Boris
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  ABSTRACT: Complexation of lanthanide ions {Ln(III) ions [Tb(III), Eu(III), or Sm(III)]} with the spiropyran-derived merocyanine obtained in dark and under steady irradiation of indoline spiropyran (1,3,3-trimethyl- 5 ′ -hydroxy- 6 ′ -formyl-indoline-spiro-2,2 ′ -[2H]chromene) induces a noticeable hypsochromic shift of about 10–110 nm of its visible absorption band concomitant with hypochromic effect and influences its thermal bleaching in the dark. The effect of lanthanide ions and medium on photochromic, spectral-and-kinetic, and luminescence properties of the spiropyran and its complexes in solution and polymer matrix of polymethylmethacrylate (PMMA) is studied. Efficient energy transfer from the spiropyran moiety results in efficient typical luminescence from the Ln(III) ion that becomes more pronounced in polar nonalcoholic solvents and PMMA solid matrix. Moreover, luminescence mappings for pattern recognition analysis have been obtained from which the nature of the solvent and/or the ligand is clearly identified.
  International Journal of Photoenergy. 01/2006;
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  Available from: Mostafa Khalil

  Article: Effect of complexation with lanthanide metal ions on the photochromism of (1,3,3-trimethyl-5′-hydroxy-6′-formyl- indoline-spiro2,2′-[2h]chromene) in different media

  M S Attia, M. H. Khalil, M. S. A. Abdel-Mottaleb, M. B. Lukyanova, Yu. A. Alekseenko, Lukyanov Boris
  [show abstract] [hide abstract]
  ABSTRACT: Complexation of lanthanide ions {Ln(III) ions [Tb(III), Eu(III), or Sm(III)]} with the spiropyran-derived merocyanine obtained in dark and under steady irradiation of indoline spiropyran (1,3,3-trimethyl-5′-hydroxy-6′-formyl-indoline-spiro-2,2′-[2H]chromene) induces a noticeable hypsochromic shift of about 10–110 nm of its visible absorption band concomitant with hypochromic effect and influences its thermal bleaching in the dark. The effect of lanthanide ions and medium on photochromic, spectral-and-kinetic, and luminescence properties of the spiropyran and its complexes in solution and polymer matrix of polymethylmethacrylate (PMMA) is studied. Efficient energy transfer from the spiropyran moiety results in efficient typical luminescence from the Ln(III) ion that becomes more pronounced in polar nonalcoholic solvents and PMMA solid matrix. Moreover, luminescence mappings for pattern recognition analysis have been obtained from which the nature of the solvent and/or the ligand is clearly identified.
  International Journal of Photoenergy. 01/2006;