Zobrazeno 1 - 10
of 80
pro vyhledávání: '"S. A. El-Gyar"'
Autor:
Dina M. Fouad, S. A. El-Gyar, Ahmed B.M. Ibrahim, António Paulo, Micheal K. Farh, Isabel Santos, Francisco Silva, M. A. El-Gahami
Publikováno v:
Inorganic Chemistry Communications. 96:194-201
Two new thiosemicarbazone ligands {HL1 = 4‑(2‑chlorophenyl)‑1‑((pyridin‑2‑yl)methylene)thiosemicarbazide and HL2 = 4‑(2‑methoxyphenyl)‑1‑((pyridin‑2‑yl)methylene)thiosemicarbazide} were synthesized. With Mn2+, Ni2+ and Cu2+, t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::087e66c4aec0d2839163b38934700e23
https://doi.org/10.1016/j.inoche.2018.08.023
https://doi.org/10.1016/j.inoche.2018.08.023
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 92:721-730
Schiff bases, arylidenes-anthranilic acid complexes with Th(IV), UO2(II), La(III), Ce(III) and Zr(IV) have been isolated. The structure of the complexes is recognized by elemental analysis, electronic spectra and i.r. spectral data as well as conduct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::230bcc2f6e981168100d8977f9a2a814
https://doi.org/10.1002/bscb.19830920807
https://doi.org/10.1002/bscb.19830920807
Publikováno v:
Collection of Czechoslovak Chemical Communications. 59:1800-1808
The Co(II), Ni(II), Cu(II) and Zn(II) complexes with 8-hydroxyquinoline-5-sulfonylhydrazone are described. It has been found that the ligand can coordinate to metal ion as a monobasic bidentate chelating agent and it can form di- and trinuclear compl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23920aa16ba08ee0a3b22aff39f75bac
https://doi.org/10.1135/cccc19941800
https://doi.org/10.1135/cccc19941800
Publikováno v:
Monatshefte f�r Chemie Chemical Monthly. 124:127-133
The acid dissociation constants of the protonated form of diimine heterocyclic compounds (imidazole, 2-methylimidazole, 2,2′-bipyridyl, and 1,10-phenanthroline) were determinedpH-meterically in aqueous media containing different amounts of organic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d88a14050dcb0f58f8715aa94cf2f820
https://doi.org/10.1007/bf00808670
https://doi.org/10.1007/bf00808670
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 71:185-192
CT-molecular complexes of some dialkylthiourea derivatives with π-acceptors have been investigated. It is concluded that these complexes are of n-π- type where the donor site is the sulphur thiocarbonyl group. The stability of the CT complexes has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::419e2dc68952dbed800c41a5ac18cf8f
https://doi.org/10.1080/10426509208034510
https://doi.org/10.1080/10426509208034510
Publikováno v:
Canadian Journal of Chemistry. 70:1684-1687
The second-stage dissociation constant values of N-(2-acetamido)imino diacetic acid (H2ADA) were determined at 25 ± 0.1 °C by potentiometric titration in different mixed-solvent mixtures (methanol, ethanol, dimethylformamide (DMF), dimethyl sulfoxi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8278760752fdf79693524a14b40437cc
https://doi.org/10.1139/v92-211
https://doi.org/10.1139/v92-211
Publikováno v:
Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry. 22:815-825
A series of new mixed ligand complexes of the ype [M(terpyridine H+) (amino acid)X2]-H20, where M = Co(II), Ni(II), Cu(II), Zn(II) and Cd(II), X = Cl or NO3, have been synthesized and characterised by elemental analysis and infrared spectra. It is de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbd7acc67ac0e5345c3532680e8803e6
https://doi.org/10.1080/15533179208020247
https://doi.org/10.1080/15533179208020247
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 62:119-125
Substituted 2-pyrazoline-4-dithiocarboxylic acid complexes with Cu(II), Ni(II), Co(II), La(III), Ce(III), Th(IV) and UO2(II) have been isolated. The structures of the complexes are recognized by elemental analyses, thermal decomposition, electronic a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c71ec52618aed48cb4795c1591e4b1b
https://doi.org/10.1080/10426509108034467
https://doi.org/10.1080/10426509108034467
Publikováno v:
Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry. 21:1061-1072
Iron(III) and Co(II) complexes of the Schiff bases derived from 2-hydroxy-1-naphthaldehyde and a series of amino acids were prepared. The structure of the complexes is investigated by chemical microanalysis, conductance measurements as well as electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0b3bc70865ae7efbb42740c688984af
https://doi.org/10.1080/15533179108020203
https://doi.org/10.1080/15533179108020203
Publikováno v:
Collection of Czechoslovak Chemical Communications. 56:1333-1339
Twelve new complexes of Cu(II), Ni(II), Co(II) and Cd(II) with 5-phenyl, 5-p-tolyl and 5-aminothioacetimide-azo-8-hydroxyquinoline have been synthesized. The ligands act as bidentate (NO) chelating agents forming the bis-chelate complexes. Analytical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83c998209ec9c4a740eb5bbfd068fdf8
https://doi.org/10.1135/cccc19911333
https://doi.org/10.1135/cccc19911333