نتایج جستجو برای: copper complexes

تعداد نتایج: 214995  

Hadi Kargar, Reza Kia*

New hetero-binuclear Hg-Cu Schiff base complexes were prepared by reaction of 2,2'-[1,1'-(2,2-‎dimethylpropane-1,3-diyldinitrilo)-diethyldyne]diphenolato}copper(II) (CuL1) and 6,6'-X-2,2'-[(2,2-‎dimethylpropane-1,3-diyl)bis(nitrilomethanylylidene)]diphenolato copper(II) [(X = ethoxy (CuL2) and ‎methoxy (CuL3)], with HgCl2 to give [Cu(L1)HgCl2] (1), [Cu(L2)HgCl2] (2), and [Cu(L3)HgCl2] (3), ‎res...

Journal: :Molecules 2015
Lenka Kucková Klaudia Jomová Andrea Švorcová Marián Valko Peter Segľa Ján Moncoľ Jozef Kožíšek

Mixed ligand copper(II) complexes containing derivatives of salicylic acid and heterocyclic ligands with nitrogen donor atoms have been the subject of various studies and reviews. In this paper, synthesis and characterization of the ternary copper(II) complexes of neocuproine (2,9-dimethyl-1,10-phenanthroline, Neo) and salicylate ligands (Sal) are reported. In addition, the crystal structures o...

Jeyasekaran Joseph Natarajan Raman, Ramaraj Jeyamurugan

A new series of transition metal complexes of Co(II), Ni(II), Cu(II) and Zn(II), has beensynthesized from the Knoevenagel condensate Schiff base ligand(L) derived from β-ketoanilideand furfural with o-phenylenediamine and diethylmalonate. Structural features were determinedby spectral and analytical techniques. Square-planar geometry has been adopted by thecomplexes except cobalt complex which ...

Journal: :Dalton transactions 2011
Qiu-Yun Chen Hai-Jian Fu Wei-Hua Zhu Yan Qi Zheng-Ping Ma Kai-Di Zhao Jing Gao

Three new copper(II) complexes of N-benzyl di(pyridylmethyl)amine (phdpa) were synthesized and characterized by spectroscopic methods. The interaction between CT-DNA and the complexes was studied by UV and fluorescence titration methods. It was found that the complex [(phdpa)Cu(H(2)O)Ac)](Ac), with the non-planar aromatic heterocyclic ring ligand (phdpa), showed good anticancer properties and c...

Journal: :Dalton transactions 2015
Katam Srinivas Chatla Naga Babu Ganesan Prabusankar

The syntheses and structures of copper(i) chalcogenone complexes are described. The homoleptic mononuclear copper(i) complexes [(IPr[double bond, length as m-dash]E)2Cu]ClO4, IPr[double bond, length as m-dash]E, 1,3-bis(2,6-diisopropylphenyl)imidazoline-2-thione (1) and 1,3-bis(2,6-diisopropylphenyl)imidazoline-2-selone (2); [(IMes[double bond, length as m-dash]E)2Cu]ClO4, IMes[double bond, len...

Journal: :European Journal of Inorganic Chemistry 2021

The Front Cover shows an “O2 grasshopper” captured by two “Copper scorpions” using their strong claws and tails (outer-sphere hydrogen bonds). As the key intermediate in biological oxygenation, trans-1,2-peroxodicopper adduct was mimicked a variety of molecular copper complexes. structure-activity models hydrogen-bond-assisted tetradentate copper(I) chloride complexes were established, fundamen...

Journal: :Solar RRL 2023

Oxygen Evolution Catalysts Copper complexes, as a kind of molecular catalysts bio-inspired from the copper O2-activating enzymes, are attractive targets for water oxidation, which could undergo facile and reversible O-O bond formation cleavage under mild conditions. In article number 2201018, Jing-Xin Jian, Qing-Xiao Tong, co-workers investigate three copper(II) complexes oxygen evolution in ph...

Journal: :Journal of inorganic biochemistry 1994
A L Abuhijleh

Two mononuclear copper(II) ibuprofenate adducts with imidazole or 2-methylimidazole and two binuclear copper(II) ibuprofenate adducts with metronidazole or caffeine have been prepared and characterized. Elemental analyses, UV-VIS, IR, EPR, and magnetic moment data for imidazole or 2-methylimidazole adducts are consistent with mononuclear square planar complexes that contain two ibuprofenato lig...

Journal: :journal of sciences islamic republic of iran 0

the mode of coordination of8 manganese(fi), cobaltm, nickel(h), copper(ii), zinc(h), lead(ii) and cadmium(i1) to sodium ascorbate (nahasc) was investigated using ir, uv-visible, aas, elemental microanalyzer, conductivity, magnetic and 'm and i3c nmr spectroscopic studies, nanasc is bidentate and coordination was through the carbonyl group and the oxygen atom of carbon-2 enolic hydfoxyl gro...

Journal: :The Journal of biological chemistry 1991
T F Kagawa B H Geierstanger A H Wang P S Ho

We have solved the single crystal structure to 1.2-A resolution of the Z-DNA sequence d(CGCGCG) soaked with copper(II) chloride. This structure allows us to elucidate the structural properties of copper in a model that mimics a physiologically relevant environment. A copper(II) cation was observed to form a covalent coordinate bond to N-7 of each guanine base along the hexamer duplex. The occur...

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