Science Journal of Chemistry

Volume 8, Issue 2, April 2020

  • Syntheses, Characterization and X-ray Crystal Structure of Polymeric Heteronuclear Oxo-bridged Fe/Na Assembled with Salen-type Schiff Base and Dicyanamide

    Popa Haba, Mouhamadou Moustapha Sow, Mamour Sarr, Ibrahima Elhadji Thiam, Mahy Diaw, Mohamed Lamine Gaye

    Issue: Volume 8, Issue 2, April 2020
    Pages: 20-27
    Received: Mar. 06, 2020
    Accepted: Mar. 23, 2020
    Published: Apr. 17, 2020
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    Abstract: Reaction of FeCl2.4H2O with 2-(-(2-(-2-hydroxy-3-methoxybenzylideneamino)phenylimino)methyl)-6-methoxyphenol (H2L) gives the metalloligand [Fe(L)].(H2O) (1). Reaction of metalloligand (1) with three fold of sodium dicyanamide Na[N(CN)2] gives the new tetranuclear compound [{FeIINaI(L)(EtOH)(HN(CN)2)}(μ-O){FeIIINaI(L)(NO3)]}]n (2) in which one of th... Show More
  • Review on In-depth Analysis of the Passive Films of W-xTi Alloys by Angle Resolved X-Ray Photoelectron Spectroscopy

    Jagadeesh Bhattarai

    Issue: Volume 8, Issue 2, April 2020
    Pages: 28-35
    Received: Feb. 29, 2020
    Accepted: Mar. 16, 2020
    Published: Apr. 28, 2020
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    Abstract: Spontaneously passivated sputter-deposited W-22Ti and W-58Ti alloys showed higher corrosion resistance than those of tungsten and titanium metals in 12 M HCl solution open to air at 30°C. Average corrosion rates of W-(22-58)Ti alloys (that is, about 9.5-18.5 × 10-3 mm/y) were found to be about three and half orders of magnitude lower than titanium ... Show More
  • Aerobic Oxidation of Cyclopentane by Using Fluorinated N-Hydroxyphthalimide Derivatives

    Samar Kumar Guha, Yasutaka Ishii

    Issue: Volume 8, Issue 2, April 2020
    Pages: 36-41
    Received: Mar. 03, 2020
    Accepted: Apr. 07, 2020
    Published: Apr. 28, 2020
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    Abstract: N-Hydroxyphthalimide derivatives, F15- and F17-NHPI, bearing fluorinated carboxylate and alkyl chains, respectively, were prepared and their catalytic performances were compared with those of N-hydroxyphthalimide (NHPI). Thus, the oxidation of cyclopentane under 10 atm of air in the presence of catalytic amount of fluorinated NHPI or NHPI, Co(OAc)2... Show More