Ara
Toplam kayıt 21, listelenen: 11-20
Structural characteristics of organo-modified bentonites of different origin
(Springer, 2007)
Organobentonites were synthesized by treating Na-bentonites (Wyoming and Reşadiye) with cetylpyridinium chloride (CPC) using ion exchange method. The difference in the basal spacing by 0.65 Å and a higher mass loss by ...
Determination of the protonation constants of some 4-(substituted benzylamino)-4,5-dihydro-1H-1,2,4-triazol-5-ones by the potentiometric method in ethanol-water mixtures
(2007)
To gain more information about the effect of solvent on 4,5-dihydro-1H-1,2,4-triazol-5-ones, the stoichiometric protonation constants of thirteen triazoles in ethanol-water mixtures were determined at an ionic strength of ...
4-Amino-3,5-diethyl-4H-1,2,4-triazole at 100 K: Chains of edge-fused R 44(10) and R44(20) rings
(Wiley, 2007)
The title compound, C6H12N4, has four crystallographically independent mol-ecules in the asymmetric unit. Inter-molecular N - H?N hydrogen bonds involving amino groups and triazole N atoms form a three-dimensional framework ...
The microwave-assisted synthesis and characterization of novel polymeric phthalocyanines containing resorcinarene
(Elsevier, 2008)
Novel metal phthalocyanine (Cu, Zn, Co, Ni) polymers containing resorcinarene moieties were prepared; the resorcinarene was obtained by the acid-catalysed cyclocondensation of resorcinol and acetaldehyde under microwave ...
Synthesis and crystal structure of N-(3-methyl-5-phenyl-3,5-dihydro-4H-1,2,4-triazol-4-yl)benzamide
(Japan Society for Analytical Chemistry, 2008)
The title compound, N-(3-methyl-5-phenyl-3,5-dihydro-4H-1,2,4-triazol-4-yl)benzamide, C16H14N4O, crystallizes in the monoclinic space group P21/c with the following unit cell parameters: a = 10.6011(6)Å, b = 7.5676(4)Å, c ...
Determination of the protonation constants of triazole derivatives in non-aqueous solvents
(2009)
Different 17 triazole derivatives were titrated with tetrabutylammonium hydroxide in four non-aqueous solvents (isopropyl alcohol, rert-butyl alcohol, N,N-dimethylformamide and acetonitrile), using Potentiometric method. ...
Structural analysis of reactive dye species retained by the basic alumina surface
(2009)
The alumina-dye composites were prepared by treating the basic alumina with the water solutions of Reactive Red 120 (RR 120) and Reactive Blue 15 (RB 15) dyes. The bands of low intensities in the 1400-1600 cm-1 region and ...
The microwave-assisted synthesis and characterization of novel, octakis(2-hydroxyethoxy)resorcinarene bridged polymeric metallophthalocyanines
(Elsevier, 2009)
The new metallophthalocyanine (Zn, Cu, Ni, Co) polymers containing 4,6,10,12,16,18,22,24-octakis(2-hydroxyethoxy)-2,8,14,20-tetramethylresorcinarene are described. Firstly, 4,6,10,12,16,18,22,24-octakis(2-hydroxyethoxy)- ...
Determination of adsorptive properties of a Turkish Sepiolite for removal of Reactive Blue 15 anionic dye from aqueous solutions
(Elsevier, 2009)
Reactive Blue 15 (RB 15) adsorption on the Turkish Sepiolite was carried out by batch equilibrium technique. IR spectrum and surface area measurement of the composite of dye-sepiolite (Turkish) pointed out that dye species ...
Reversible immobilization of catalase by using a novel bentonite-cysteine (Bent-Cys) microcomposite affinity sorbents
(Elsevier, 2008)
This study focused on developing bentonite-cysteine (Bent-Cys) microcomposite affinity sorbents (38-105 ?m) for catalase adsorption from aqueous solutions. Pseudo-biospecific affinity ligand l-cysteine was covalently binded ...