Results 11 to 20 of about 135,415 (266)

Crystal structure of bis{(Z)-(benzylamino)[(5Z)-2-(benzylimino-κN)-5-(2-methoxy-2-oxoethylidene)-4-oxothiolan-3-ylidene]methanethiolato-κS}copper(II)

Acta Crystallographica Section E: Crystallographic Communications, 2015
The title complex, [Cu(C22H19N2O3S2)2], was obtained from the reaction between (Z)-methyl 2-(5-benzylimino-4-benzylcarbamothioyl-3-oxothiolan-2-ylidene)acetate and Cu(NO3)2. The CuII atom is tetracoordinated by two N,S-bidentate ligands, forming a highly
Konstantin Obydennov, Liliya Khamidullina, Pavel Slepukhin, Yury Morzherin   +3 more
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{1,1′-Bis[(pyridin-2-yl)methyl]-2,2′-bipiperidyl}(perchlorato)copper(II) perchlorate

Acta Crystallographica Section E: Crystallographic Communications, 2017
The title complex, [CuII(ClO4)(mesoPYBP)](ClO4) {PYBP = 1,1′-bis[(pyridin-2-yl)methyl]-2,2′-bipiperidyl, C22H30N4}, was prepared and found to crystallize with two crystallographically independent complex salt moieties.
Guang Yang, Elena V. Rybak-Akimova, Charles Campana   +2 more
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N'-(2-Hydroxybenzylidene)-3-methylbenzohydrazide and Its Copper(II) Complex: Syntheses, Characterization, Crystal Structures and Biological Activity

Acta Chimica Slovenica, 2020
The hydrazone compound N'-(2-hydroxybenzylidene)-3-methylbenzohydrazide (H2L) was prepared. With H2L and copper acetate a new copper complex [Cu(HL)(NCS)]·CH3OH was synthesized.
Hui Zhao, Xiang-Peng Tan, Qi-An Peng, Cong-Zhong Shi, Yi-Fei Zhao, Yongming Cui   +5 more
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Synthesis, characterization of new homo and heteronuclear Schiff base copper(II) complexes

Journal of the Turkish Chemical Society, Section A: Chemistry, 2018
This article describes the synthesis of isonitrosomethyl-p-tolyl ketone [HL] as the starting material and then we prepared the schiff base ligand from the reactions of the amine compounds with o-phenylenediamine [H2L1].
Tufan Topal, Emin Karapınar
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3-Nitroso-4-hydroxy-5,6-benzocoumarin (NHBC) as a reagent for the spectrophotometric determination of copper(II) in alloys

CHIMIA, 1974
Copper(II) forms in the pH range 6.3 to 7.8 a yellowish brown complex with 3-nitroso-4-hydroxy-5,6-benzocoumarin which is soluble in a 60 % dioxan medium giving a deep yellow coloured solution. Beer’s law is obeyed up to 2.80 ppm of copper(II) at 420 nm.
Nitin Kohli, R.P. Singh
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Binding copper(II) ion released from azo-amino acid Schiff base complex into lysozyme crystals as models for treatment of Alzheimer’s disease [PDF]

Exploration of Drug Science
Aim: One of the causes of Alzheimer’s disease (AD) is the structural change and aggregation of target proteins due to the binding of metal ions. In this study, we investigated where copper(II) ions bound to the protein egg white lysozyme crystals in a ...
Ayumu Odaka, Temitayo O. Aiyelabola, Seiya Akimoto, Daisuke Nakane, Patience Dooshima Iorungwa, Takashiro Akitsu   +5 more
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Copper(II), Nickel(II) and Zinc(II) Complexes of Peptide Fragments of Tau Protein

Molecules
Copper(II), nickel(II) and zinc(II) complexes of various peptide fragments of tau protein were studied by potentiometric and spectroscopic techniques. All peptides contained one histidyl residue and represented the sequences of tau(91–97) (Ac-AQPHTEI-NH2)
Zsuzsa Kastal, Adrienn Balabán, Szilvia Vida, Csilla Kállay, Lajos Nagy, Katalin Várnagy, Imre Sóvágó   +6 more
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The Role of Side Chains in the Fine-Tuning of the Metal-Binding Ability of Multihistidine Peptides

Molecules, 2022
The systematic studies of copper(II), nickel(II) and zinc(II) ion complexes of protected multihistidine peptides containing amino acids with different side chains (Ac-SarHAH-NH2, Ac-HADH-NH2, Ac-HDAH-NH2, Ac-HXHYH-NH2 X, Y = A, F, D or K, Ac-HXHAHXH-NH2,
Enikő Székely, Gizella Csire, Bettina Diána Balogh, Judit Zsuzsa Erdei, Judit Mária Király, Judit Kocsi, Júlia Pinkóczy, Katalin Várnagy   +7 more
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N,N′,N′′ versus N,N′,O imine-containing coordination motifs: ligand-directed synthesis of mononuclear and binuclear CuII compounds

Acta Crystallographica Section E: Crystallographic Communications, 2017
It is demonstrated here that tridentate imine ligands can control the nuclearity of copper(II) complexes based on the donor atoms present in the ligand.
Raphael Enoque Ferraz de Paiva, Douglas Hideki Nakahata, Marcos Alberto de Carvalho, Fernando Rodrigues Goulart Bergamini, Pedro Paulo Corbi   +4 more
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SYNTHESIS, ELECTROCHEMICAL AND HETEROGENEOUS ELECTROCATALYTIC BEHAVIORS OF A NOVEL NON SYMMETRICAL COPPER(II) COMPLEX

Journal of Fundamental and Applied Sciences, 2018
We describe in this paper the synthesis of new unsymmetrical tetradentate copper(II) Schiff base complex, prepared from tridentate Schiff base ligand (HL) and pyridine molecule.
N. Bounab, A. Ourari, W. Derafa, D. Aggoun   +3 more
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