Yazar "Sülü M." seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    Antibacterial activity of rhodium, iridium, and ruthenium tripodal phospine complexes
    (1998) Sülü M.; Küçükbay H.; Durmaz R.; Günal S.
    Twenty-eight rhodium, iridium, or ruthenium complexes were evaluated for their in vitro anti-bacterial activity against Enterococcus faecalis ATCC 29212, Straphylococcus aureus ATCC 29213, Escherichia coli ATCC 25922 and Pseudomonaa aeruginosa ATCC 27853. Ten compounds showed an antibacterial activity against Enterococcus faecalis ATCC 29212 and Staphylococcus aureus ATCC 29213 with a range of the minimum inhibitory concentrations (MICs) between 16 and 125 ?g/ml. None of the compounds exhibited antimicrobial activity against the gram- negative strains E. coli ATCC 25922 or Pseudomonas aeruginosa ATCC 29213 with a concentration range between 4 and 500 ?g/ml.
  • Küçük Resim Yok
    Öğe
    The synthesis of the tripodal phosphine CH3C{CH2P(m-CF3C6H4) 2}3 and its rhodium coordination chemistry
    (Elsevier S.A., 1998) Sülü M.; Venanzi L.M.; Gerfin T.; Gramlich V.
    The new tripodal phosphine CH3C{CH2P(m-CF3C6H4) 2}3, CF3PPP, was prepared by reacting CH3C(CH2Br)3 with Li+P(m-CF3C6H4)2 -, the latter being best obtained by adding Li+NiPr2- to PH(m-CF3C6H4)2. The rhodium complexes [RhCl(CO)(CF3PPP)], [Rh(LL)(CF3PPP)](CF3SO3) (LL=2 CO or NBD), [RhX3(CF3PPP)], [RhX(MeCN)2(CF3PPP)](CF3SO3) 2 (X=H and Cl), [RhCl2(MeCN)(CF3PPP)](CF3SO3) and [Rh(MeCN)3(CF3PPP)](CF3SO3) 3 were prepared and characterized. The X-ray crystal structure of [Rh(NBD)(CF3PPP)](CF3SO3) is reported. The lower oxygen sensitivity of the CF3PPP rhodium(I) complexes, relative to the corresponding species with the parent ligand CH3C(CH2PPh2)3, is attributed to the higher effective nuclear charge on the metal centers caused by the presence of the six CF3 substituents on the terdentate phosphine. A similar effect may be responsible for the easier hydrolysis of the CF3PPP-containing, cationic rhodium(III) complexes relative to the corresponding compounds of the parent ligand. © 1998 Elsevier Science S.A.