Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Sabry Hamed Seda"'
Autor:
Sabry Hamed Seda, Salah Abd El Wanees
Publikováno v:
Journal of Dispersion Science and Technology. 40:1813-1826
The kinetics of H2 production during Zn corrosion in 0.5 M HCl without and with various additives of N,N'-bis-(1-hydroxyphenylimine)-2,5-thiophenedicarboxaldehyde (HPTD) was studied using gasometry...
Autor:
Sabry Hamed Seda, Ayman A. Abdel Aziz
Publikováno v:
Journal of Fluorescence. 27:1051-1066
A novel series of Co(II), Ni(II), Cu(II) and Zn(II) mononuclear complexes have been synthesized involving a potentially tetradentate Schiff base ligand, which was obtained by condensation of 2-aminophenol with 2,5-thiophene-dicarboxaldehyde. The comp
Publikováno v:
Sensors and Actuators B: Chemical. 223:566-575
A novel highly sensitive and selective optical chemical sensor (optode) was fabricated for the determination of Zn 2+ ion. The optical sensor was prepared by incorporating recently synthesized ionophore, HPP: N,N′-bis-(1-hydroxyphenylimine)2,2′-p
Autor:
Sabry Hamed Seda, Ayman A. Abdel Aziz
Publikováno v:
European Journal of Chemistry. 6:189-198
Co(II), Ni(II), Cu(II) and Zn(II) metal complexes of a quadridentate Schiff base with a N 2 S 2 donor set derived from condensation of benzene-1,2-dicarboxaldehyde( o -phthaldehyde) with 2-aminothiophenol were synthesized and characterized by element
Autor:
Ayman A. Abdel Aziz, Sabry Hamed Seda
Publikováno v:
Sensors and Actuators B: Chemical. 197:155-163
A novel fluorescence optical sensor for sensitive and selective determination of Hg2+ ions in aqueous solution has been prepared. The sensing system is made of a novel unsymmetrical tetradentate Schiff base namely N-(2-hydroxyphenyl)-N′-(2-mercapto
Autor:
Ayman A. Abdel Aziz, Sabry Hamed Seda
Publikováno v:
Journal of fluorescence. 25(6)
A novel fluorescent sensing film has been proposed for sensitive determination of Zn(2+) ion in EtOH-HEPES buffer solution (20 mM HEPES, 50:50, v/v, pH 7.0). The novel sensor based on incorporating a novel qaudridentate Schiff base N,N(')-bis-(1-hydr
Publikováno v:
Inorganic Chemistry Communications. 9:792-796
The new 15-metallacrown-5 complexes were synthesised from nickel(II) salts and 2-picolinehydroxamic acid in the presence of lanthanide(III) (Ce, Pr, Sm, Dy, Er) or lead(II) ions. The samarium(III) and lead(II) 15-metallacrown-5 complexes were obtaine
Publikováno v:
Inorganica Chimica Acta. 359:1055-1063
The new pentanuclear 12-metallacrown-4 complexes of the formula [Cu5L4]X2 (where H2L is (S)-phenylalanine or 2-picolinehydroxamic acids and X− is NO 3 - , Cl−, or HSO 4 - ) have been isolated in solid state for the first time and characterized by
Autor:
Sabry Hamed Seda, Ayman A. Abdel Aziz
Publikováno v:
Applied Organometallic Chemistry. 31:e3879
The tetradentate Schiff base ligand (SB), N,N′-bis-(2-mercaptophenylimine)-2,5-thiophenedicarboxaldehyde was prepared via condensation of 2,5-thiophene-dicarboxaldehyde with 2-aminothiophenol in a 1:2 molar ratio by conventional method. Additionall
Publikováno v:
European Journal of Inorganic Chemistry. 2007:2989-2989
The new copper(II) 15-metallacrown-5 complexes with the central metal ions PbII, HgII, AgI, NaI and YIII, with the formula [MCu5L5]Xn {H2L is 2-picolinehydroxamic acid or (S)-phenylalaninehydroxamic acid and X– is NO3– or Cl–}, have been synthe