Results 271 to 280 of about 458,689 (285)

Synthesis and Characterization of Some New Cu II, Co II, Ni II, Au III potassium 2-(2,4-dinitrophenyl) Hydrazine-1-Carbodithioate Complexes and Evaluation of their Biological Activity

International Journal of Pharmaceutical Research, 2020
openaire   +2 more sources

The Effectiveness Adsorption of Au(III) and Cu(II) Ion by Mangosteen Rind (Garcinia mangostana L.) Using Point of Zero Charge Calculation

Key Engineering Materials, 2020
Adsorption of Au(III) and Cu(II) by mangosteen rind adsorbent had been carried out. Mangosteen rind has several functional groups including –OH phenolics, ‒C=C‒ aromatics, and ethers.
Dian Saraswati, Mellia Harumi, T. Triyono, S. Sudiono   +3 more
semanticscholar   +1 more source

Synthesis, characterization and anticancer activity of Ni(II), Cu(II), Pd(II) and Au(III) complexes derived from novel Mannich base

Vietnam Journal of Chemistry
AbstractNew four complexes of Ni(II), Cu(II), Pd(II), and Au(III) were derived from the tridentate ligand 3‐((3‐(4‐hydroxyphenyl)‐5‐mercapto‐4H‐1,2,4‐triazol‐4‐yl)(3‐oxobutyl)amino)naphtho[2,3‐b]furan‐2(3H)‐one (L), which synthesized using condensation reaction of formaldehyde, acetone, and secondary amine (Mannich reaction).
Tamara Q. Manhee, Ammar J. Alabdali
openaire   +1 more source

Using Density Functional Theory (DFT) Calculations to Reinterpret the Biological Activity of Square Planar Pt (II), Au (III), and Cu (II) Complexes From Molecular Level

Applied organometallic chemistry
The geometric structures and electronic properties of three experimentally reported anticancer Pt (II), Au (III), and Cu (II) complexes (named complexes 1–3 ) as well as the interactions of these complexes with biological target molecules have been
Xin Cheng, Yao‐Fei Cui, Xiao‐Lin Huang, Yan‐Yan Cai, Xu‐Jie Gao, Hai-Yan Zhong, Jia‐Di Chen, Weiming Sun   +7 more
semanticscholar   +1 more source

Reduction of AgI, AuIII, CuII, and HgII by FeII/FeIII hydroxysulfate green rust

Chemosphere, 2003
Green rusts are mixed Fe(II)/Fe(III) hydroxides that are found in many suboxic environments where they are believed to play a central role in the biogeochemical cycling of iron. X-ray absorption fine structure analysis of hydroxysulfate green rust suspensions spiked with aqueous solutions of AgCH(3)COO, AuCl(n)(OH)(4-n), CuCl(2), or HgCl(2) showed that
Edward J, O'Loughlin, Shelly D, Kelly, Kenneth M, Kemner, Roseann, Csencsits, Russell E, Cook   +4 more
openaire   +2 more sources

Simultaneous determination of Au(III) and Cu(II) with 1-phenyl-1,2-propanedione-2-oximethiosemicarbazone (PPDOT) on solid phase

Minerals Engineering, 2007
Abstract A new method for the simultaneous determination of copper and gold was developed by derivative spectrophotometry using a previous preconcentration on solid phase. The method is based on the formation of Cu(II)-PPDOT and Au(III)-PPDOT complexes that are extracted from aqueous solution in only 20 min on cationic exchange SP Sephadex C25.
Libby Morales, M. Inés Toral
openaire   +1 more source

ChemInform Abstract: COMPLEXING BEHAVIOUR OF 5‐AMINO‐1,3,4‐THIADIAZOLE‐2‐THIOL PART 2, COMPLEXES OF NI(II), RH(I), PD(II), PT(II), AU(III) AND CU(II)

Chemischer Informationsdienst, 1975
AbstractDie Komplexe (I) bis (VI) wurden überwiegend aus den Metallchloriden und dem Liganden zum Teil nach Literaturrnethoden dargestellt.
M. R. GAJENDRAGAD, U. AGARWALA
openaire   +1 more source

Innocence and noninnocence of the ligands in bis(pyrazine-2,3-dithiolate and -diselonate) d8-metal complexes. A theoretical and experimental study for the Cu(iii), Au(iii) and Ni(ii) cases

Dalton Transactions, 2010
In the paper are described experimental and theoretical studies to investigate the electronic structures of [ML2]- (M(III) = Cu, L = pdt and pds, pyrazine-2,3-dithiolate and -diselonate; M(III) = Au, L = pds) with the aim of elucidating the nature of the bonding and to establish the innocent–noninnocent character of the ligand in these complexes ...
G. Bruno, M. Almeida, ARTIZZU, FLAVIA, J. C. Dias, MERCURI, MARIA LAURA, PILIA, LUCA, C. Rovira, X. Ribas, SERPE, ANGELA, DEPLANO, PAOLA   +9 more
openaire   +4 more sources

Enhanced adsorption selectivity of Au(III) over Cu(II) from acidic chloride solutions by chitosan/palm kernel fatty acid distillate/magnetite nanocomposites.

International Journal of Biological Macromolecules, 2023
S. Chang, Annestasia Ollat Anak Jampang
semanticscholar   +1 more source

Modeling BIS(1-methyl-2-imidazolyl)-glyoxal, BIG, and its Rh(III), Au(III), Pt(II), Cu(II), Zn(II),Re(I) complex ions using DFT

2020
ÖZET DFT KULLANILARAK BIS(l-METİL-2-IMIDAZOLİL)-GLYOKSAL, BIG, VE Rh(III), Au(m), Pt(ü), Cu(H), Zn(II), Re(I) KOMPLEKS İYONLARININ MODELLENMESI Birden fazla imidazol grubu içeren ligandlar metalloproteinlerin ve nüleotidlerin aktif bölgelerinin modellenmesinde sıkça kullanılmaktadır. Potansiyel olarak tetradentet olan bis-(l-metilimidazol-2-yl)glyoksal&
openaire   +1 more source