Results 21 to 30 of about 1,041,818 (287)

Simulation study of copper(I) and copper(II) species in ZSM-5 zeolite [PDF]

, 1995
Low energy configurations of CuI and CuII species in the ZSM-5 zeolite, probed by energy minimisation techniques, are found to be bound strongly to framework aluminium or copper ...
Catlow, C.R.A., Nortier, P., Perrin, M.A., Sayle, D.C.   +3 more
core   +1 more source

Synthesis and Characterization of the Ligand Based on Benzimidazole and Its Copper Complex: DNA Binding and Antioxidant Activity

Bioinorganic Chemistry and Applications, 2011
A new copper(II) complex with formulae of [Cu(buobb)2](pic)2, where buobb stands for the ligand of 1,3-bis(1- butylbenzimidazol-2-yl)-2-oxopropane and pic represents 2,4,6-trinitrophenol, has been synthesized and characterized by elemental analyses ...
Huilu Wu, Fan Kou, Fei Jia, Bin Liu, Jingkun Yuan, Ying Bai   +5 more
doaj   +1 more source

Development of flow injection method for indirect copper determination with amperometric detection in drinking water samples [PDF]

Journal of the Serbian Chemical Society, 2012
A gas-diffusion flow injection method with amperometric detection for indirect copper determination on a silver electrode is developed. The flow through system is equipped with two injection valves and a gas-diffusion unit. In the first step, a signal
Nikolić-Mandić Snežana, Stanimirović Bojana, Baošić Rada, Lolić Aleksandar, Tripković Tatjana   +4 more
doaj   +1 more source

Binary and ternary mixed metal complexes of terminally free peptides containing two different histidyl binding sites [PDF]

, 2013
Copper(II), nickel(II) and zinc(II) complexes of the terminally free peptides AHAAAHG and AAHAAAHG have been studied by combined applications of potentiometric and various spectroscopic techniques, including UV-visible, CD and EPR for copper(II) and UV ...
Anikó Kaluha, Arena, Arena, Camerman, Csilla Kállay, Damante, Damente, Daniele, Daniele Sanna, Di Natale, Farkas, Hureau, Imre Sóvágó, Jancsó, Jószai, Jószai, Józsa, Kozlowski, Kozlowski, Kállay, Kállay, Kállay, La Mendola, Morris, Rabenstein, Rainer, Rajkovic, Sóvágó, Sóvágó, Sóvágó, Timári, Trapaidze, Turi, Valensin, Viktória Jószai, Walter, Wienken, Witkowska, Ágnes Grenács   +38 more
core   +1 more source

Epr study of some copper(II) mononuclear and copper(II)-copper(II)/ copper(II)nickel(II) binuclear complexes

, 1999
Department of Chemistry, A. P. S. University, Rewa-486 003, India Manuscript received 15 September1998, revised .2 February 1999, accepted 11 March 1999 X-Band epr spectra of polycrystalline samples of some copper(II) mononuclear and copper(II)-copper(II)/copper(II)-nickel(II) binuclear complexes using diethylenetriamine and imidazole have been ...
Patel, Ram N., Ayodhya P. Patel, Pandeya, Krishna B.   +2 more
openaire   +1 more source

EXTRACTION OF COPPER, COBALT AND NICKEL IONS FROM AQUEOUS SOLUTIONS BY EXTRACTANT CYANEX 272

Записки Горного института, 2018
The extractant CYANEX 272, which active component is di(2,4,4-trimethylpentyl)-phosphinic acid (C8H17)2POOH, is effective for extraction of copper (II), cobalt (II) and nickel (II) ions.
L. A. Voropanova, V. P. Pukhova
doaj   +1 more source

Mononuclear Cu(II) complexes of novel salicylidene Schiff bases: synthesis and mesogenic properties [PDF]

, 2015
Two new Schiff base ligands 1 and 2 (where 1 = 4-(2-hydroxybenzilidenamino)-phenyl-4-(decyloxy)-2-(pent-4-enyloxy)benzoate, 2 = 4-(4-(decyloxy)-2-hydroxybenziliden amino)-phenyl-4-(decyloxy)-2-(pent-4-enyloxy)benzoate) and their copper (Cu)(II) complexes
Badea, Valentin, Costisor, Otilia, Cretu, Carmen, Cseh, Liliana, Mehl, Georg, Sasca, Viorel, Shova, Sergiu, Szerb, Elisabeta I., Tang, Bai J.   +8 more
core   +2 more sources

EPR Methods for Biological Cu(II): L-Band CW and NARS [PDF]

, 2015
: Copper has many roles in biology that involve the change of coordination sphere and/or oxidation state of the copper ion. Consequently, the study of copper in heterogeneous environments is an important area in biophysics. EPR is a primary technique for
Bennett, Brian, Kowalski, Jason M.
core   +2 more sources

Copper (II) Level in Musts Affects Acetaldehyde Concentration, Phenolic Composition, and Chromatic Characteristics of Red and White Wines

Molecules
Copper (II), a vital fungicide in organic viticulture, also acts as a wine oxidation catalyst. However, limited data are currently available on the impact that maximum allowed copper (II) ion doses in wine grapes at harvest can have on aged wine quality.
Francesco Errichiello, Luigi Picariello, Martino Forino, Giuseppe Blaiotta, Ernesto Petruzziello, Luigi Moio, Angelita Gambuti   +6 more
doaj   +1 more source

Norfloxacin and N-Donor Mixed-Ligand Copper(II) Complexes: Synthesis, Albumin Interaction, and Anti-Trypanosoma cruzi Activity

Bioinorganic Chemistry and Applications, 2016
Copper(II) complexes with the first-generation quinolone antibacterial agent norfloxacin containing a nitrogen donor heterocyclic ligand 2,2′-bipyridine (bipy) or 1,10-phenanthroline (phen) were prepared and characterized by IR, EPR spectra, molar ...
Darliane A. Martins, Ligiane R. Gouvea, Gabriel S. Vignoli Muniz, Sonia R. W. Louro, Denise da Gama Jaen Batista, Maria de Nazaré C. Soeiro, Letícia R. Teixeira   +6 more
doaj   +1 more source