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    Acetalization and transacetalization reactions catalyzed by ruthenium, rhodium, and iridium complexes with (2-{{bis[3-(trifluoromethyl)phenyl]phosphino}methyl}-2-methylpropane-1,3-diyl}bis[bis[3-(trifluoromethyl)phenyl]phosphine] (MeC[CH2P(m-CF3C6H4)2]3)
    (Wiley-V C H Verlag Gmbh, 2001) Sülü, M; Venanzi, LM
    The complexes [RhCl(3 n)(MeCN)(n)(CF(3)triphos)](CF3SO3)(n) (n = 1, 2; CF(3)triphos = MeC[CH2P(m-CF3C6H4)(2)](3)) and [M(MeCN)(3) (CF(3)triphos)](CF3SO3)(n) (M = Ru, n = 2; M = Ir, n = 3) are catalyst precursors for some typical acetalization and transacetalization reactions. The activity of these complexes is higher than those of the corresponding species containing the parent ligand MeC[CH2P(C6H5)(2)](3)(Htriphos). Also the complexes [MCl3(tripod)] (tripod = Htriphos and CF(3)triphos) are active catalysts for the above reactions. The complex [RhCl2(MeCN)(CF(3)triphos)](CF3SO3) catalyzes the acetalization of benzophenone.
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    Antibacterial activity of rhodium, iridium, and ruthenium tripodal phosphine complexes
    (Ecv-Editio Cantor Verlag Medizin Naturwissenschaften, 1998) Sülü, M; Küçükbay, H; Durmaz, R; Günal, S
    Twenty-eight rhodium, iridium, or ruthenium complexes were evaluated for their in vitro antibacterial activity against Enterococcus faecalis ATCC 29212, Staphylococcus 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 mu 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 mu g/ml.
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    Antifungal activity of rhodium, iridium, and ruthenium tripodal phosphine complexes
    (Luigi Ponzio E Figlio, 2000) Sülü, M; Kücükbay, H; Durmaz, R; Günal, S
    Twenty-eight rhodium, iridium or ruthenium complexes were evaluated for their in vitro antifungal activities against Candida albicans and Candida tropicalis. Fourteen compounds showed an antifungal activity against C, albicans and C. tropicalis with a range of the minimum inhibitor concentrations (MICs) between 16 and 250 mu g/mL.
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    Decomposition of rhodium and iridium complexes of tripodal phosphine derivatives studied by thermal analysis
    (Elsevier, 2001) Yilmaz, VT; Sülü, M; Yazicilar, TK
    Thermal behaviour of five or six-coordinate rhodium and iridium complexes of two tripodal phosphines, CH3C(CH2PPh2)(3) and CH3C(CK2P(m-CF3C6H4)(2))(3), and their mixed-ligand complexes containing Cl, CO and MeCN was studied by TG, DTA and DTG in dynamic nitrogen atmosphere. The plain complexes exhibit very high thermal stability and degradation of the phosphine ligands follow a complicated process, while the first stage of the mixed-ligand complexes corresponds to removal of CO or MeCN and decomposition of the phosphine ligands occurs in the subsequent stages. All complexes undergo complete decomposition to form the respective metals as the final decomposition product. It was found that iridium complexes showed much higher thermal stability than their rhodium analogues. (C) 2001 Elsevier Science B.V. All rights reserved.
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    The ruthenium and iridium coordination chemistry of the tripodal ligand CH3C{CH2P(m-CF3-C6H4)2}3
    (Elsevier Science Sa, 1999) Sülü, M; Venanzi, LM
    The ruthenium(II) complexes [Ru(CF3CO2)(2)(CF(3)triphos)], [Ru-2(mu-Cl)(3)(CF(3)triphos)(2)]Cl, [RuH(CH3CN)(2)(CF(3)triphos)](CF3SO3) and [Ru(CH3CN)(3)(CF(3)triphos)](CF3SO3)(2) (CF(3)triphos = CH3C{CH2P(m-CF3C6H4)(2)}(3)) were prepared and characterized. The iridium complexes [Ir(COD)(CF(3)triphos)](+), [IrCl(CO)(CF(3)triphos)], [Ir(CO)(2)(CF(3)triphos)](+), [IrCl3(CF(3)triphos)] and [IrCl3-n(MeCN)(n)(CF(3)triphos)](CF3SO3)(n) (n = 1, 2 and 3) were also prepared and characterized. The coordination chemistries of these two elements with CF(3)triphos and with the unsubstituted ligand CH3C{CH2P(C6H5)(2)}(3) (Htriphos) are compared. It is shown that, relative to Htriphos, CF(3)triphos (a) stabilizes the iridium(I) relative to the iridium(III) oxidation state and (b) its cationic complexes are stronger Lewis acids. (C) 1999 Elsevier Science S.A. All rights reserved.
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    The sol-gel synthesis and application of some anticorrosive coating materials
    (Consultants Bureau, 2003) Sayilkan, H; Sener, S; Sener, E; Sülü, M
    On the basis of organic-inorganic monomers, we develop new coatings aimed at the protection of iron and aluminum surfaces against the action of atmospheric and chemical factors. The coatings are first sprayed and then polymerized. The quality of the coatings and their chemical resistance are checked in natural and model media according to the ASTM standard. In most cases, the durability of the coatings is satisfactory.
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    Synthesis, characterization and electrical and CO2 sensing properties of triazine containing three dendritic phthalocyanine
    (Elsevier Science Sa, 2005) Sülü, M; Altindal, A; Bekaroglu, Ö
    The metal-free phthalocyanine la was synthesised by statistically mixed condensation of 4-nitrophthalonitrile and 4-(2-dimethylan- noethylsulfanyl)phthalonitrile in dry 2-(dimethylamino)ethanol. The same route were applied to prepare metal -containing phthalocyanines using metal salts Zn(OAC)(3)center dot 2H(2)O and CoCl2, respectively, in dry DMF. The nitro compounds were reduced to amine with sodium sulfide and quarternized by reaction of MeI. These compounds were then reacted with cyanuric chloride in the presence of potassium carbonate as a base in mixture of THF and DMF gave s-triazine containing three amino phthalocyanines 4a-c. The reaction of three phthalocyanines with sodium salt of triethylmethanetricarboxylate in absolute ethanol were synthesised first generation of dendrimer 5a-c. The second generation of dendritic phthalocyanines 6a-c were prepared by the reaction of dentritic phthalocyanines with tris (H2NC(CH2OH)(3)) using K2CO3 as a base in DMSO. The dendritic phthalocyanines containing tris are slightly soluble in water. The new compounds were characterized by elemental analysis and UV-vis, IR, NMR spectra. The temperature dependence of the dc and ac conductivity of these compounds and the adsorption Of CO2 gas on thin film of the compounds were investigated by dc conductivity and impedance spectroscopy technique using an interdigital transducer structure on glass substrate. While exposure to CO2 have no influence on the electrical conductivity (ac and dc) of compound 6a and 6c, the conductivity of the film of 6b strongly depend on the presence of the CO2 gas. Completely reversible sensor signals were obtained for compound 6b. The impedance spectra were obtained at frequencies between 40 and 10(5) Hz, and in a wide range Of CO2 concentrations (from 500 to 8000 ppm) at room temperature. The temperature dependence of dc conductivity show typical Arrehenius behaviour for all compounds. The ac conductivity of the films is represented by the form omega(s). The dependency of frequency exponent s on temperature suggests a correlated barrier hopping (CBH). (C) 2005 Elsevier B.V. All rights reserved.