Relevant bibliographies by topics / Cu (II) Chelates

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Cu (II) Chelates'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Cu (II) Chelates"

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Krishnankutty, K., Basheer Ummathur, and Perumpalli Ummer. "1-naphthylazo derivatives of some 1,3-dicarbonyl compounds and their Cu (II), Ni(II) and Zn(II) complexes." Journal of the Serbian Chemical Society 74, no. 11 (2009): 1273–82. http://dx.doi.org/10.2298/jsc0911273k.

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The coupling of diazotized 1-aminonaphthalene with 1,3-dicarbonyl compounds (acetylacetone, methylacetoacetate and acetoacetanilide) yielded a new series of bidentate ligand systems (HL). Analytical, IR, 1H-NMR and mass spectral data indicate that the compounds exist in the intramolecularly hydrogen bonded keto-hydrazone form. With Ni(II), Cu(II) and Zn(II), these potential monobasic bidentate ligands formed [ML2] type complexes. The IR, 1H- -NMR and mass spectral data of the complexes are consistent with the replacement of the chelated hydrazone proton of the ligand by a metal ion, thus leadi
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Alshater, Heba, Ahlam I. Al-Sulami, Samar A. Aly, Ehab M. Abdalla, Mohamed A. Sakr, and Safaa S. Hassan. "Antitumor and Antibacterial Activity of Ni(II), Cu(II), Ag(I), and Hg(II) Complexes with Ligand Derived from Thiosemicarbazones: Characterization and Theoretical Studies." Molecules 28, no. 6 (2023): 2590. http://dx.doi.org/10.3390/molecules28062590.

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Four new complexes (Ni2+, Cu2+, Ag+, and Hg2+) were prepared from the ligand N-(4-chlorophenyl)-2-(phenylglycyl)hydrazine-1-carbothioamide (H2L). Analytical and spectroscopic techniques were used to clarify the structural composition of the new chelates. In addition, all chelates were tested against bacterial strains and the HepG2 cell line to determine their antiseptic and carcinogenic properties. The Ni(II) complex was preferable to the other chelates. Molecular optimization revealed that H2L had the highest reactivity, followed by Hg-chelate, Ag-chelate, Ni-chelate, and Cu-chelate. Moreover
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Wu, Hong Wei, Wan Cui Xie, Xi Hong Yang, Fu Rao Lai, Hui Wu, and Dong Wei Cheng. "Influence of Chelation Rate on the Oligochitosan Preparation by Enzymolysis of CTS-Cu (II)." Advanced Materials Research 962-965 (June 2014): 1252–57. http://dx.doi.org/10.4028/www.scientific.net/amr.962-965.1252.

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To prepare a homogenous low-molecular-weight chitosan oligosaccharide with high solubility and physiological activity, the CTS-Cu (II) chelate was degraded by cellulose, xylanase, semi-cellulase, pectinase, lipase. Cellulose was used to investigate the enzymolysis of the CTS-Cu (II) chelates at various chelation rates. The oligochitosan yields were determined by ultrafiltration and spectrophotometry. The molecular weight distributions of the degradation products were compared by gel column chromatography. Results showed that the generation of the CTS-Cu (II) chelate promoted chitosan degradati
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Krishnankutty, Krishnannair, Basheer Ummathur та Kamalakshy Babu. "Benzothiazolylazo derivatives of some β-dicarbonyl compounds and their Cu(II), Ni(II) and Zn(II) complexes". Journal of the Serbian Chemical Society 75, № 5 (2010): 639–48. http://dx.doi.org/10.2298/jsc090816040k.

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The coupling of diazotized 2-aminobenzothiazole with 1,3- dicarbonyl compounds (benzoylacetone, methylacetoacetate and acetoacetanilide) yielded a new series of tridentate ligand systems (HL). Analytical, IR, 1H-NMR, 13C-NMR and mass spectral data indicated that the compounds exist in the intramolecularly hydrogen bonded azo-enol tautomeric form in which one of the carbonyl groups of the dicarbonyl moiety had enolised and hydrogen bonded to one of the azo nitrogen atoms. The compounds formed stable complexes with Ni(II), Cu(II) and Zn(II) ions. The Cu(II) complexes conform to [CuL(OAc)] stoich
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V., Sadasivan, and Alaudeen M. "A study on the aryla,. zo coupling reaction of bis-(acetylacetone)ethylenediaminocopper(II) and bis(acetylacetone)ethylenediaminonickei(II)." Journal of Indian Chemical Society Vol. 83, Nov 2006 (2006): 1145–48. https://doi.org/10.5281/zenodo.5832495.

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Department of Chemistry, University College, Thiruvananthapuram-695 034, Kerala, India <em>E-mail </em>: drthanal@rediffmail.com <em>Manuscript received 8 May 2006, revised 17 August 2006, accepted 23 August 2006</em> The electrophilic substitution of aryl diazonium ion on the cu<sup>ll</sup> and Ni<sup>ll</sup> chelates of bisacetylacetone) ethylenediamine [H<sub>4</sub>enacac] in aqueous medium have been studied. The coupling products were isolated and characterized by elemental analysis,magnetic susceptibility measurement and electronic, infrared,<sup>1</sup>H NMR, ESR and mass spectral stu
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El-Tabl, Abduo S., S. El-Kousy, M. A. Wahba, and S. M. Khalefa. "Organic Amino Acids Chelates; Preparation, Spectroscopic Characterization and Applications as Foliar Fertilizers." JOURNAL OF ADVANCES IN CHEMISTRY 10, no. 2 (2014): 2203–17. http://dx.doi.org/10.24297/jac.v10i2.980.

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Cu(II) complexes of amino acid hydrolyzate soya protein isolate have been prepared. In order to study the mode of coordination in the above chelates and their effect as foliar fertilizer, Mn(II), Co(II), Nil(II), Cu(II), Zn(II) and Cd(II) complexes of L-mino acids have been prepared and characterized by elemental and spectral analyses,( IR, UV-VIS, mass spectra and ESR), electrical conductance, magnetic moments and thermal analyses (DTA and TGA). ESR spectra of copper (II) complexes show isotropic and anisotropic types d(x2-y2) with covalent bond character. The amino acids chelates were evalua
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Pérez-González, Adriana, Mario Prejanò, Nino Russo, Tiziana Marino, and Annia Galano. "Capsaicin, a Powerful •OH-Inactivating Ligand." Antioxidants 9, no. 12 (2020): 1247. http://dx.doi.org/10.3390/antiox9121247.

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Oxidative conditions are frequently enhanced by the presence of redox metal ions. In this study, the role of capsaicin (8-methyl-N-vanillyl-6-nonenamide, CAP) in copper-induced oxidative stress was investigated using density functional theory simulations. It was found that CAP has the capability to chelate Cu(II), leading to complexes that are harder to reduce than free Cu(II). CAP fully turns off the Cu(II) reduction by Asc−, and slows down the reduction in this cation by O2•−. Therefore, CAP is proposed as an •OH-inactivating ligand by impeding the reduction in metal ions (OIL-1), hindering
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Ibrahim, Said A., Sahar A. El-Gyar, and Mohamed A. El-Gahami. "Metal complexes of nitrogen-oxygen donor ligands as potential drugs." Collection of Czechoslovak Chemical Communications 56, no. 6 (1991): 1333–39. http://dx.doi.org/10.1135/cccc19911333.

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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, conductivity, spectral and thermal data are consistent with six coordinated structure in the case of Cu(II), Ni(II), Co(II) and four coordinate structure in the case of the analogues Cd(II). It is identified that the metal chelates possess enhanced antibacterial and antifungal activities relative to the free ligands.
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J., K. VERMA, and S. P. VERMA G. "Potentiometric and Structural Studies on Chromium(II), Manganese(II), lron(II), Cobalt(II), Nickel(II), Copper(II), Zinc(Il) and Cadmium(Il) Complexes with Butan-3- semicarbazone-1-carboxylic Acid." Journal of Indian Chemical Society Vol. 63, May 1996 (1986): 469–71. https://doi.org/10.5281/zenodo.6277453.

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Government College, Daman-396 210 Ranchi University, Ranchi-834 008 <em>Manuscript received 28 August 1984, revised 24 February 1986, accepted 31 March 1986</em> The potentiometric studies on Cr<em><sup>II</sup></em>,Mn<em><sup>II</sup></em>,Fe<em><sup>II</sup></em>,Co<em><sup>II</sup></em>,Ni<em><sup>II</sup></em>,Cu<em><sup>II</sup></em>,Zn<em><sup>II</sup></em>, and Cd<em><sup>II</sup></em>&nbsp;chelates with butan-3-semicarbazone-1-carboxylic acid werecarried out according to Calvin-Bjerrum technique in 75% <em>(viv) </em>dioxane-water medium at 25, 35 and 45&deg;(<em>&micro;-</em>0.1<em>M
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Fouegue Tamafo, Aymard Didier, Julius Numbonui Ghogomu, Nyiang Kennet Nkungli, Désiré Bikélé Mama, and Elie Younang. "Quantum Chemical Investigation on the Antioxidant Activity of Neutral and Anionic Forms of Juglone: Metal Chelation and Its Effect on Radical Scavenging Activity." Journal of Chemistry 2017 (2017): 1–14. http://dx.doi.org/10.1155/2017/3281684.

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The chelation ability of divalent Mg, Ca, Fe, Co, Ni, Cu, Zn, and monovalent Cu ions by neutral and anionic forms of juglone has been investigated at DFT/B3LYP/6-31+G(d,p) level of theory in gas and aqueous phases. It is noteworthy that only the 1 : 1 stoichiometry was considered herein. The effects of these metals on the radical scavenging activity of neutral juglone were evaluated via the usual descriptors of hydrogen atom transfer. According to our results, metal chelation by the two forms of juglone was spontaneous and exothermic in both media. Based on the binding energies, Cu(II) ion sho
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Dissertations / Theses on the topic "Cu (II) Chelates"

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Olalekan, Temitope Elizabeth. "Synthesis, characterisation and biological activity of 2-(methylthiomethyl)anilines, 2-(methylthio)anilines, their Schiff-base derivatives and metal(II) (Co, Ni, Cu) complexes." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1020868.

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A series of 31 sulfur-nitrogen donor ligands and 64 metal(II) complexes have been investigated. The thiomethylated aniline ligands 2–(methylthiomethyl)aniline 2MT and 2–(methylthio)aniline 2MA were synthesized with their substituted derivatives (-Me, -MeO, -Cl, -Br, -NO2) to serve as chelating agents. These ligands behave as bidentate ligands with SN donor group with Co(II), Ni(II) and Cu(II). The Co(II) and Ni(II) complexes have the ML2Cl2 molecular formula while the Cu(II) complexes formed with MLCl2 stoichiometry where L is the bidentate ligand. The ligands and their metal(II) complexes hav
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Shih, Hsiu-Ling, and 石秀玲. "Synthesis of NB-TTDA, EDTA-bis(amide) and 1,4-DO2A, the stabilities of their complexes with Gd(III), Mn(II), Ca(II), Zn(II) and Cu(II) and relaxometric studies of Gd(III) and Mn(II) chelates." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/79154034511216311364.

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碩士<br>高雄醫學大學<br>藥學研究所<br>89<br>The linear ligand of NB-TTDA (p-nitrobenzyl-N,N'-diethylene-N,N'- trimethylenetriamine-N,N, N', N'', N''-pentaacetic acid), four bis(amide) derivatives of EDTA(ethylenediamine-N,N'-tetraacetic acid), EDTA-BDEA(ethylenediamine-N,N'- diacetic-N,N'-bis(diethylamide)), EDTA-BCPA(ethylenediamine-N,N'-diacetic-N,N'-bis(cyclopentylamide)), EDTA- BMOBA (ethylene-diamine-N,N'-diacetic-N,N'-bis(2-methoxybenzylamide)), EDTA-BBA(ethylenediamine-N,N'-diacetic- N,N'-bis- (benzylamide)) and macrocyclic ligand of 1,4-DO2A(1,4,7,10-tetraaza- cyclododecane-1,4-diacetatic acid) wer
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Book chapters on the topic "Cu (II) Chelates"

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Norvell, W. A., R. M. Welch, M. L. Adams, and L. V. Kochian. "Reduction of Fe(III), Mn(III), and Cu(II) chelates by roots of pea (Pisum sativum L.) or soybean (Glycine max)." In Plant Nutrition — from Genetic Engineering to Field Practice. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1880-4_20.

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Macdougall, Jennie, Chris Reid, and Larry McGhee. "Implications of the Selectiveness of Cu Chelators on Cu0, Cu(I)O and Cu(II)O Powders." In Solid State Phenomena. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-46-9.329.

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Miller, D. M., D. DeSilva, L. Pickart, and S. D. Aust. "Effects of Glycyl-Histidyl-Lysyl Chelated Cu(II) on Ferritin Dependent Lipid Peroxidation." In Advances in Experimental Medicine and Biology. Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-5730-8_11.

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Sija, Éva, Annalisa Dean, Tamás Jakusch, Valerio B. Di Marco, Alfonso Venzo, and Tamás Kiss. "Interactions of pyridinecarboxylic acid chelators with brain metal ions: Cu(II), Zn(II), and Al(III)." In Metal Ions in Neurological Systems. Springer Vienna, 2012. http://dx.doi.org/10.1007/978-3-7091-1001-0_17.

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Conference papers on the topic "Cu (II) Chelates"

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Azizah, Ninna Arifatun Nurul, Sentot Budi Rahardjo, Witri Wahyu Lestari, and Soerya Dewi Marliyana. "Synthesis and Characterization of Copper Complex Chelated with Phenobarbital Ligand." In 8th International Conference on Advanced Material for Better Future. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-n2rlar.

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The research is intended to synthesize copper(II) with Phenobarbital (PB) complex in 1 : 4 mole ratio. The sole reflux method is designated to synthesize reactant within methanol solvent. Cu(II) complex is characterized using Atomic Absorption Spectrophotometry (AAS), UV-Vis Spectrophotometer, Fourier-transform Infrared Spectroscopy (FTIR), Thermogravimetric Analysis (TGA), Conductivity meter, and Magnetic Susceptibility Balance (MSB). The Cu(II)-PB complex signified 1 absorption peak at 517.5 nm with 2Eg → 2T2g transition. Complex is then composed by 6 electron donors of Cu ion-bound ligand,
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Baral, Minati, Amit Gupta, and B. K. Kanungo. "Development of a dipodal Schiff base ligand with N-imine and O-naphtholate donors: A potential chelator towards Cu(II) metal ion established through potentiometric and spectrophotometric studies." In ADVANCED MATERIALS AND RADIATION PHYSICS (AMRP-2015): 4th National Conference on Advanced Materials and Radiation Physics. AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4929176.

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