Academic literature on the topic 'Metal-ligand formation studies'

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Journal articles on the topic "Metal-ligand formation studies"

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Ratnesh, Das, and S. Pitre K. "Bioinorganic studies on nickel(II)-zidovudine complex." Journal of Indian Chemical Society Vol. 78, May 2001 (2001): 257–58. https://doi.org/10.5281/zenodo.5878248.

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Department of Chemistry, Dr. H. S. Gour University, Sagar-470 003, India <em>Fax</em>: 91-07582-23236 <em>Manuscript received 24 April 2000, revised 29 September 2000, accepted 16 December 2000</em> Physicochemical and microbial studies on Ni<sup>11</sup>-zidovudine complex (1 : 1, metal-ligand) have been done in solid and aqueous phase. The metal-ligand interaction has been studied using polarographic method at 25 &plusmn;1<sup>&ordm;</sup> and at ionic strength of 1.0 <em>M</em> (KCI). The complex formation takes place through ,the nitrogen of the azide group of the ligand. The antibacterial
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Zhou, Weinan, Tridib Sarma, Yonghuan Su, Chuanhu Lei, and Jonathan L. Sessler. "Kinetic trapping of a cobalt(ii) metallocage using a carbazole-containing expanded carbaporphyrinoid ligand." Chemical Science 13, no. 3 (2022): 692–97. http://dx.doi.org/10.1039/d1sc06514a.

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Carbazole containing expanded carbaporphyrinoid ligand supports the formation of 2 : 1 metal-to-ligand complexes with Pd, Co, and Zn. Solid-state studies also revealed formation of a 6 : 3 metal-to-ligand metallocage in the case of Co complexation.
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P., VENUGOPALAN, and KRISHNANKUTTY K. "Potentiometric Studies on Chelation of Cobalt-, Nickel- and Copper(II) with some 5-Aryl-1-phenyl-4-pentene-1,3-diones." Journal of Indian Chemical Society Vol. 75, Feb 1998 (1998): 98–99. https://doi.org/10.5281/zenodo.5915350.

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Department of Chemistry, University of Calicut, Kerala-673 635 <em>Manuscript received 27 September 1996, accepted 6 March 1997</em> Potentiometric Studies on Chelation of Cobalt-, Nickel- and Copper(II) with some 5-Aryl-1-phenyl-4-pentene-1,3-diones.
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Muhammad Ikram, Muhammad Ikram, Sadia Rehman Sadia Rehman, Muhammad Ayaz Muhammad Ayaz, et al. "Synthesis, Spectral, Thermal and DPPH Scavenging Studies of the Hydrazone Derived Transition Metal Complexes." Journal of the chemical society of pakistan 42, no. 6 (2020): 888. http://dx.doi.org/10.52568/000691.

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Schiff base ligand 2,2-{benzene-1,4-diylbis[(E)methylylidene(1E,2E)hydrazine-2,1-diylidene(E)methylidene]}diphenol (H2-BHMD) was synthesized by reacting together the ortho vaniline and 1,4-bis(hydrazonomethyl)benzene. It was characterized by analytical and spectroscopic techniques including 1H-NMR, elemental analysis, FT-IR, and UV-Visible studies. Different transition metal ions like Co (II), Ni (II), Cu (II) and Zn (II) were reacted with well characterized ligand to obtain the metal derivatives. AAS, elemental analysis, FT-IR, molar conductance and UV-Visible methods were used to study the m
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Muhammad Ikram, Muhammad Ikram, Sadia Rehman Sadia Rehman, Muhammad Ayaz Muhammad Ayaz, et al. "Synthesis, Spectral, Thermal and DPPH Scavenging Studies of the Hydrazone Derived Transition Metal Complexes." Journal of the chemical society of pakistan 42, no. 6 (2020): 888. http://dx.doi.org/10.52568/000691/jcsp/42.06.2020.

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Schiff base ligand 2,2-{benzene-1,4-diylbis[(E)methylylidene(1E,2E)hydrazine-2,1-diylidene(E)methylidene]}diphenol (H2-BHMD) was synthesized by reacting together the ortho vaniline and 1,4-bis(hydrazonomethyl)benzene. It was characterized by analytical and spectroscopic techniques including 1H-NMR, elemental analysis, FT-IR, and UV-Visible studies. Different transition metal ions like Co (II), Ni (II), Cu (II) and Zn (II) were reacted with well characterized ligand to obtain the metal derivatives. AAS, elemental analysis, FT-IR, molar conductance and UV-Visible methods were used to study the m
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(Miss), SUJATA KHANNA, ALKA PRADHAN (Miss), and K. CHATURVEDI G. "Potentiometric Studies on the Formation of Quaternary Mixed Ligand Complexes of Some Transition Metal Ions." Journal of Indian Chemical Society Vol. 61, Apr 1984 (1989): 302–5. https://doi.org/10.5281/zenodo.6319615.

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Chemical Laboratories, Agra College, Agra-282 002 <em>Manuscript received 10 April 1983, revised 21 November 1983, accepted 13 February 1984</em> The formation of mixed ligand complexes of the type MABC, where M(ll) = Cu(II), Ni(ll) or Zn(ll),&nbsp;A=iminodiacetic acid (IMDA), B=malonic acid (maln) and C= ethylenediamine (en) or 1,2- propanediamine (pn) have been investigated by _<em>p</em>H metric titrations. Evidence is provided for the simultaneous addition of primary ligand (A) and secondary ligand (B) to the metal ion resulting in the formation of an intermediate ternary species, MAD, to
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Adhao, Sopan Tejrao, and Rahul Ramchandra Wagh. "Synthesis, Spectral, Thermal Studies and Antimicrobial Evaluation of Transition Metal Complexes with Novel Schiff Base Ligand." Oriental Journal Of Chemistry 40, no. 1 (2024): 142–51. http://dx.doi.org/10.13005/ojc/400118.

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A novel coumarin Schiff base “(E)-7-hydroxy-4-methyl-8-(1-(1-(naphthalen-2-yl) ethylimino) ethyl)-2H-chromen-2-one” [HOMNEIEC] ligand was synthesized by the condensation of “8-acetyl-7-hydroxy-4-methyl-2H-chromen-2-one” [AHMC] with “1-(naphthalen-1-yl) ethylamine” [NEA]. The transition metal (II) ions complexes with this ligand were synthesized by a common method. The synthesized ligand and metal (II) complexes were studied using spectral (1H NMR, FTIR, Mass Spectrometry) and thermal (TGA) techniques for their structures. The 1H NMR and FTIR spectra of ligand confirm the formation of azomethin
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Mahadev, Krishna, and Siddappa Kuruba. "Synthesis, Spectroscopic Characterization and Biological Studies of Some Metal(II) Complexes of Nicotinic Hydrazide Moiety." Asian Journal of Chemistry 37, no. 4 (2025): 843–50. https://doi.org/10.14233/ajchem.2025.33437.

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In this study, a new ligand N′-(1-(2-oxo-2H-chromen-3-yl)ethylidene)nicotinohydrazide was synthesized and characterized. Then, the ligand was reacted with Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) metal ions affording its metal(II) complexes. Through elemental analysis, molar conductance, magnetic data, UV-visible, FT-IR, 1H NMR and mass spectra, the structural characterization of all the metal(II) complexes were accomplished. The FT-IR data demonstrated that in the metal(II) complexes, the ligand chelated to metal ion in a tridentate manner. The UV-visible spectral and magnetic data showed th
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Mashaly, M., H. A. Bayoumi та A. Taha. "Metal complexes of triazine - Schiff bases: Spectroscopic and thermodynamic studies of complexation of some divalent metal ions with 3-(α-acetylethylidenehydrazino)-5,6-diphenyl-1,2,4-triazine". Journal of the Serbian Chemical Society 64, № 10 (1999): 621–35. http://dx.doi.org/10.2298/jsc9910621m.

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Metal complexes of some divalent metal ions (Co, Ni, Cu and Zn) with 3-(?- acetylethylidenehydrazino)-5,6-diphenyl-1,2,4-triazine (AHDT) as a Schiff-base have been investigated potentiometrically and spectrophotometrically and found to have the stoichiometric formulae 1:1 and 1:2 (M:L). The formation constants of the proton-ligand and metal-ligand complexes have been determined potentiometrically at different temperatures (10, 20, 30, 40 and 50?C) at an ionic strength of 0.1MKNO3 in 75%(v/v) dioxane-water solution. The standard thermodynamic parameters, viz. ?Go, ?Ho, and ?So, for the proton-l
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Sharma, N., V. K. Vashistha, and U. R. Sharma. "Computer Assisted Thermal Complexation Studies of Vanadium with Benzodiazepine Drugs." Asian Journal of Chemistry 31, no. 10 (2019): 2351–56. http://dx.doi.org/10.14233/ajchem.2019.21998.

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The complexing tendency of vanadium with nifoxipam and lorazepam were carried out by pH metric titration technique in aqueous acid media at different temperatures (298, 308 and 318 K) and an ionic strength of 0.2 M. The degree of complexation was investigated at different pH values. Potentionmetric measurement of hydrogen ion concentration was also studied with the degree of complex formation. The proton-ligand and metal-ligand stability constants were resolved by modified Calvin-Bjerrum pH titration technique (Irving and Rossitti) using computer programming. The important thermodynamic parame
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Book chapters on the topic "Metal-ligand formation studies"

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Jordan, Robert B. "Reaction Mechanisms of Organometallic Systems." In Reaction Mechanisms of Inorganic and Organometallic Systems. Oxford University Press, 2007. http://dx.doi.org/10.1093/oso/9780195301007.003.0007.

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The general principles discussed in Chapter 3 also apply to reactions of organometallic complexes. Because these systems do not have a wide range of structurally similar complexes with different metal atoms for comparative studies across the Periodic Table, comparisons are usually made down a particular group. However, there is a wide range of ligands available for studies of entering and leaving group effects. This area has been the subject of several recent reviews. A major difference from the systems discussed in Chapter 3 is that many of these complexes are soluble in organic solvents, inc
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Conference papers on the topic "Metal-ligand formation studies"

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Lima, Francisco José Santos. "MOLECULAR MODELING, REACTIVITY PARAMETERS AND SPECTROCHEMIC STUDIES OF ε-CAPROLACTAM AND o-PHENANTROLINE". У SOUTHERN BRAZILIAN JOURNAL OF CHEMISTRY 2021 INTERNATIONAL VIRTUAL CONFERENCE. DR. D. SCIENTIFIC CONSULTING, 2022. http://dx.doi.org/10.48141/sbjchem.21scon.01_lima.pdf.

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In this work, molecular models were obtained, and the reactivity parameters of ε-caprolactam and ophenanthroline were calculated to evaluate the interaction in the formation of complex molecular compounds. It was observed that the main electron donor atoms, in the formation of the metal-ligand bond, are centered mainly on the oxygen and nitrogen atoms, respectively, which are sterically more favorable in these species. Conductance measurements in an aqueous solution were obtained to observe the electrolytic behavior of these compounds. Infrared spectra were also recorded to characterize vibrat
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Oyenowo, Oluwafemi P., Bo Luo, and Ryosuke Okuno. "Chemical and Phase Equilibrium Calculations Applied to Dissolution and Precipitation of Multiple Solid Phases." In SPE Annual Technical Conference and Exhibition. SPE, 2024. http://dx.doi.org/10.2118/220808-ms.

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Abstract Mineralization stands out as the most reliable method for carbon dioxide (CO2) storage, transforming CO2 into stable carbonate minerals that remain locked away from the atmosphere. This high security has sparked interest in enhancing CO2 mineralization within geological formations. However, effective enhancement demands a robust thermodynamic model that integrates chemical and phase equilibria (CPE). In this paper, we introduce a CPE model built upon the Pitzer activity and Peng-Robinson fugacity models, solving it through Gibbs free energy minimization. The CPE model can model comple
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